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Document And Entity Information (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2011
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Feb. 23, 2012
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Jun. 30, 2011
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| Document And Entity Information [Abstract] | |||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Document Period End Date | Dec. 31, 2011 | ||
| Document Fiscal Year Focus | 2011 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | DCP Midstream Partners, LP | ||
| Entity Central Index Key | 0001338065 | ||
| Trading Symbol | dpm | ||
| Entity Filer Category | Large Accelerated Filer | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Common Stock, Shares Outstanding | 45,606,924 | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Well-known Seasoned Issuer | Yes | ||
| Entity Public Float | $ 1,348,670,000 |
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- Definition
If the value is true, then the document as an amendment to previously-filed/accepted document. No definition available.
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- Definition
End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition
This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition
This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition
The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition
The type of document being provided (such as 10-K, 10-Q, N-1A, etc). The document type is limited to the same value as the supporting SEC submission type, minus any "/A" suffix. The acceptable values are as follows: S-1, S-3, S-4, S-11, F-1, F-3, F-4, F-9, F-10, 6-K, 8-K, 10, 10-K, 10-Q, 20-F, 40-F, N-1A, 485BPOS, 497, NCSR, N-CSR, N-CSRS, N-Q, 10-KT, 10-QT, 20-FT, POS AM and Other. No definition available.
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- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Indicate number of shares outstanding of each of registrant's classes of common stock, as of latest practicable date. Where multiple classes exist define each class by adding class of stock items such as Common Class A [Member], Common Class B [Member] onto the Instrument [Domain] of the Entity Listings, Instrument No definition available.
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- Definition
Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition
Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, or (4) Smaller Reporting Company. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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| X | ||||||||||
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- Definition
State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
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- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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| X | ||||||||||
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- Definition
Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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- Definition
Trading symbol of an instrument as listed on an exchange. No definition available.
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- Details
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- Definition
Predecessor equity No definition available.
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| X | ||||||||||
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- Definition
Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum as of the balance sheet date of the (a) fair values of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and (b) the carrying amounts of the liabilities arising from financial instruments or contracts used to mitigate a specified risk (hedge), and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of after one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of the general partner's ownership interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all Liabilities and Stockholders' Equity items (or Partners' Capital, as applicable), including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of the limited partners' ownership interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed in the balance sheet. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of ownership interest of different classes of partners in limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Consolidated Balance Sheets (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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|---|---|---|
| Consolidated Balance Sheets [Abstract] | ||
| Allowance for doubtful accounts | $ 0.3 | $ 0.5 |
| Common unitholders, units issued | 44,848,703 | 44,848,703 |
| Common unitholders, units outstanding | 40,478,383 | 40,478,383 |
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- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of limited partner units issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of limited partner units outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Consolidated Statements Of Operations (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Operating revenues: | ||||||||
| Sales of natural gas, propane, NGLs and condensate | $ 820.5 | $ 634.3 | $ 456.3 | |||||
| Sales of natural gas, propane, NGLs and condensate to affiliates | 592.8 | 528.4 | 456.7 | |||||
| Transportation, processing and other | 129.8 | 94.9 | 79.2 | |||||
| Transportation, processing and other to affiliates | 33.4 | 20.4 | 16.0 | |||||
| Losses from commodity derivative activity, net | (6.0) | (7.3) | (62.3) | |||||
| Losses from commodity derivative activity, net - affiliates | (0.7) | (1.2) | (3.5) | |||||
| Total operating revenues | 1,569.8 | 1,269.5 | 942.4 | |||||
| Operating costs and expenses: | ||||||||
| Purchases of natural gas, propane and NGLs | 783.0 | 755.2 | 529.5 | |||||
| Purchases of natural gas, propane and NGLs from affiliates | 446.8 | 277.4 | 246.7 | |||||
| Operating and maintenance expense | 105.4 | 79.8 | 69.7 | |||||
| Depreciation and amortization expense | 81.0 | 73.7 | 64.9 | |||||
| General and administrative expense | 17.9 | 14.3 | 11.9 | |||||
| General and administrative expense - affiliates | 19.4 | 19.4 | 20.4 | |||||
| Step acquisition - equity interest re-measurement gain | (9.1) | |||||||
| Other income | (0.5) | (1.0) | ||||||
| Other income - affiliates | (3.0) | |||||||
| Total operating costs and expenses | 1,453.0 | 1,206.7 | 943.1 | |||||
| Operating income (loss) | 116.8 | 62.8 | (0.7) | |||||
| Interest income | 0.3 | |||||||
| Interest expense | (33.9) | (29.1) | (28.3) | |||||
| Earnings from unconsolidated affiliates | 36.9 | 38.2 | 26.9 | |||||
| Income (loss) before income taxes | 119.8 | 71.9 | (1.8) | |||||
| Income tax expense | (0.6) | [1] | (0.3) | [1] | (0.6) | [1] | ||
| Net income (loss) | 119.2 | 71.6 | (2.4) | |||||
| Net income attributable to noncontrolling interests | (18.8) | (9.2) | (8.3) | |||||
| Net income (loss) attributable to partners | 100.4 | 62.4 | (10.7) | |||||
| Net income attributable to predecessor operations | (14.4) | (7.4) | ||||||
| General partner's interest in net income or net loss | (25.2) | (16.9) | (12.7) | |||||
| Net income (loss) allocable to limited partners | $ 75.2 | $ 31.1 | $ (30.8) | |||||
| Net income (loss) per limited partner unit - basic | $ 1.73 | $ 0.86 | $ (0.99) | |||||
| Net income (loss) per limited partner unit - diluted | $ 1.72 | $ 0.86 | $ (0.99) | |||||
| Weighted-average limited partner units outstanding - basic | 43.5 | 36.1 | 31.2 | |||||
| Weighted-average limited partner units outstanding - diluted | 43.6 | 36.1 | 31.2 | |||||
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| X | ||||||||||
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- Definition
Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of price risk derivatives not designated as hedging instruments, Revenue gains and losses include mark-to-market gains and losses on energy trading contracts and the settlement of financial or physical energy trading contracts No definition available.
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| X | ||||||||||
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- Definition
General And Administrative Expense Affiliates No definition available.
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| X | ||||||||||
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- Definition
Losses From Commodity Derivative Activity Net Affiliates No definition available.
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| X | ||||||||||
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- Definition
Natural Gas Propane NGLs Condensate Purchases No definition available.
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| X | ||||||||||
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- Definition
Natural Gas Propane NGLs Condensate Purchases from Affiliates No definition available.
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| X | ||||||||||
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- Definition
Natural Gas Propane NGLs Condensate Revenue No definition available.
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| X | ||||||||||
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- Definition
Natural Gas Propane NGLs Condensate Revenue to Affiliates No definition available.
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| X | ||||||||||
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- Definition
Net Loss Attributable To Predecessor Operations No definition available.
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| X | ||||||||||
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- Definition
Other Income Affiliates No definition available.
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| X | ||||||||||
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- Definition
Transportation Processing And Other To Affiliates No definition available.
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| X | ||||||||||
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- Definition
In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total costs of sales and operating expenses for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Revenue related to midstream and downstream gas activities. May include the following: gathering from wells, processing to remove impurities, storage, transmission, and the sale of natural gas and related products. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate amount of net income allocated to general partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate amount of net income allocated to limited partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net income (loss) allocated to each outstanding limited partnership unit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Net Income or Loss allocated to each limited partner unit outstanding during the reporting period and each unit that would have been outstanding assuming the issuance of limited partner units for all dilutive potential units outstanding during the reporting period. Limited partners have limited liability and do not manage the partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Discloses the amount of operating expense for the period for routine plant maintenance and repairs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statements Of Comprehensive Income (Loss) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Net income (loss) | $ 119.2 | $ 71.6 | $ (2.4) |
| Other comprehensive income (loss): | |||
| Reclassification of cash flow hedge losses into earnings | 20.7 | 22.9 | 20.6 |
| Net unrealized losses on cash flow hedges | (13.3) | (18.7) | (12.7) |
| Total other comprehensive income | 7.4 | 4.2 | 7.9 |
| Total comprehensive income | 126.6 | 75.8 | 5.5 |
| Total comprehensive income attributable to noncontrolling interests | (18.8) | (9.2) | (8.3) |
| Total comprehensive income (loss) attributable to partners | 107.8 | 66.6 | (2.8) |
|
Successor [Member]
|
|||
| Net income (loss) | (9.8) | ||
| Other comprehensive income (loss): | |||
| Net unrealized losses on cash flow hedges | (12.0) | ||
|
Predecessor Equity [Member]
|
|||
| Other comprehensive income (loss): | |||
| Net unrealized losses on cash flow hedges | $ (0.7) | ||
| X | ||||||||||
|
- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to noncontrolling interests, if any. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Net of tax effect of the reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statements Of Changes In Equity (USD $)
In Millions, unless otherwise specified |
Successor [Member]
Common Unitholders [Member]
|
Successor [Member]
Class D Unitholders [Member]
|
Successor [Member]
Subordinated Unitholders [Member]
|
Successor [Member]
General Partner [Member]
|
Successor [Member]
Noncontrolling Interests [Member]
|
Successor [Member]
|
Predecessor Equity [Member]
|
Common Unitholders [Member]
|
Class D Unitholders [Member]
|
Subordinated Unitholders [Member]
|
General Partner [Member]
|
Accumulated Other Comprehensive (Loss) Income [Member]
|
Noncontrolling Interests [Member]
|
Successor [Member]
|
Total
|
|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance at Dec. 31, 2008 | $ 138.5 | $ 429.0 | $ (54.6) | $ (4.8) | $ (40.5) | $ 167.7 | $ 635.3 | |||||||||||
| Net change in parent advances | (6.4) | (6.4) | ||||||||||||||||
| Conversion of subordinated units to common units | (52.1) | 52.1 | ||||||||||||||||
| Issuance of common units | 69.5 | 69.5 | ||||||||||||||||
| Distributions to unitholders and general partner | (67.7) | (2.1) | (2.1) | (13.4) | (85.3) | |||||||||||||
| Distributions to noncontrolling interests | (27.0) | (27.0) | ||||||||||||||||
| Contributions from DCP Midstream, LLC | 0.7 | 0.7 | ||||||||||||||||
| Contributions from noncontrolling interests | 78.7 | 78.7 | ||||||||||||||||
| Issuance of class D units | 49.7 | 49.7 | ||||||||||||||||
| Other | (0.1) | (0.1) | ||||||||||||||||
| Deficit purchase price over carrying value of acquired assets | 19.0 | 19.0 | ||||||||||||||||
| Acquisition of additional interest in East Texas and the NGL Hedge | (68.0) | 4.6 | (63.4) | |||||||||||||||
| Conversion of class D units into common units | 66.8 | (66.8) | ||||||||||||||||
| Comprehensive income: | ||||||||||||||||||
| Net income attributable to predecessor operations | 7.4 | 7.4 | ||||||||||||||||
| Net income (loss) | (30.6) | (4.4) | 4.6 | 12.3 | 8.3 | (9.8) | (2.4) | |||||||||||
| Reclassification of cash flow hedges into earnings | 20.6 | 20.6 | ||||||||||||||||
| Net unrealized losses on cash flow hedges | (12.0) | (0.7) | (12.0) | (12.7) | ||||||||||||||
| Total comprehensive income | 6.7 | (30.6) | (4.4) | 4.6 | 12.3 | 8.6 | 8.3 | 5.5 | ||||||||||
| Balance at Dec. 31, 2009 | 70.8 | 415.5 | (5.9) | (31.9) | 227.7 | 676.2 | ||||||||||||
| Net change in parent advances | 27.4 | 27.4 | ||||||||||||||||
| Purchase of additional interest in a subsidiary | 1.0 | (5.5) | (4.5) | |||||||||||||||
| Excess purchase price over acquired assets | (0.8) | (0.8) | ||||||||||||||||
| Issuance of common units | 189.1 | 189.1 | ||||||||||||||||
| Equity-based compensation | 0.2 | 0.2 | ||||||||||||||||
| Distributions to unitholders and general partner | (85.6) | (16.3) | (101.9) | |||||||||||||||
| Distributions to noncontrolling interests | (25.6) | (25.6) | ||||||||||||||||
| Contributions from DCP Midstream, LLC | 0.6 | 0.6 | ||||||||||||||||
| Contributions from noncontrolling interests | 14.3 | 14.3 | ||||||||||||||||
| Comprehensive income: | ||||||||||||||||||
| Net income attributable to predecessor operations | 14.4 | 14.4 | ||||||||||||||||
| Net income (loss) | 32.2 | 15.8 | 9.2 | 57.2 | 71.6 | |||||||||||||
| Reclassification of cash flow hedges into earnings | 22.9 | 22.9 | ||||||||||||||||
| Net unrealized losses on cash flow hedges | (18.7) | (18.7) | ||||||||||||||||
| Total comprehensive income | 14.4 | 32.2 | 15.8 | 4.2 | 9.2 | 75.8 | ||||||||||||
| Balance at Dec. 31, 2010 | 112.6 | 552.2 | (6.4) | (27.7) | 220.1 | 850.8 | [1] | |||||||||||
| Net change in parent advances | 1.7 | 1.7 | ||||||||||||||||
| Acquisition of Southeast Texas | (114.3) | (114.3) | ||||||||||||||||
| Excess purchase price over acquired assets | (34.8) | (0.9) | (35.7) | |||||||||||||||
| Issuance of common units | 169.9 | 169.9 | ||||||||||||||||
| Equity-based compensation | 3.4 | 3.4 | ||||||||||||||||
| Distributions to DCP Midstream, LLC | (2.6) | (2.6) | ||||||||||||||||
| Distributions to unitholders and general partner | (108.9) | (23.5) | (132.4) | |||||||||||||||
| Distributions to noncontrolling interests | (44.8) | (44.8) | ||||||||||||||||
| Contributions from noncontrolling interests | 18.3 | 18.3 | ||||||||||||||||
| Comprehensive income: | ||||||||||||||||||
| Net income (loss) | 75.2 | 25.2 | 18.8 | 119.2 | ||||||||||||||
| Reclassification of cash flow hedges into earnings | 20.7 | 20.7 | ||||||||||||||||
| Net unrealized losses on cash flow hedges | (13.3) | (13.3) | ||||||||||||||||
| Total comprehensive income | 75.2 | 25.2 | 7.4 | 18.8 | 126.6 | |||||||||||||
| Balance at Dec. 31, 2011 | $ 654.4 | $ (4.7) | $ (21.2) | $ 212.4 | $ 840.9 | |||||||||||||
|
||||||||||||||||||
| X | ||||||||||
|
- Definition
Acquisition of additional interest in unconsolidated affiliates. No definition available.
|
| X | ||||||||||
|
- Definition
Acquisition Of Unconsolidated Affiliate No definition available.
|
| X | ||||||||||
|
- Definition
Number of class D units issued during period value. No definition available.
|
| X | ||||||||||
|
- Definition
Conversion of class D units into common units. No definition available.
|
| X | ||||||||||
|
- Definition
Deficit purchase price over carrying value of acquired assets. No definition available.
|
| X | ||||||||||
|
- Definition
Excess purchase price over acquired assets No definition available.
|
| X | ||||||||||
|
- Definition
Net Change In Parent Advances To Predecessor No definition available.
|
| X | ||||||||||
|
- Definition
Net Income Attributable To Predecessor Operations No definition available.
|
| X | ||||||||||
|
- Definition
Other. No definition available.
|
| X | ||||||||||
|
- Definition
Purchase of additional interest in a subsidiary cash and noncash No definition available.
|
| X | ||||||||||
|
- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Net of tax effect of the reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total distributions to each class of partners (i.e., general, limited and preferred partners). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total change in each class of partners' capital accounts during the year due to exchanges and conversions. Partners include general, limited and preferred partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total change in each class of partners' capital accounts during the year due to the sale of units. All partners include general, limited and preferred partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for the return on capital for noncontrolled interest in the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow contributed by noncontrolled interest that purchase additional shares or otherwise increase their ownership stake in a subsidiary of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statements Of Changes In Equity (Parenthetical)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Issuance of common units | 761,285 | ||
|
Common Unitholders [Member]
|
|||
| Issuance of common units | 4,357,921 | 5,870,200 | 2,875,000 |
|
Class D Unitholders [Member]
|
|||
| Issuance of class D units | 3,500,000 | ||
|
East Texas System [Member]
|
|||
| Acquisition of additional interest in East Texas | 25.10% | ||
| X | ||||||||||
|
- Definition
Class D units issued during period, units. No definition available.
|
| X | ||||||||||
|
- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statements Of Cash Flows (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
||||||||
| OPERATING ACTIVITIES: | ||||||||||
| Net income (loss) | $ 119.2 | $ 71.6 | $ (2.4) | |||||||
| Adjustments to reconcile net income to net cash provided by operating activities: | ||||||||||
| Depreciation and amortization expense | 81.0 | 73.7 | 64.9 | |||||||
| Earnings from unconsolidated affiliates | (36.9) | (38.2) | (26.9) | |||||||
| Distributions from unconsolidated affiliates | 46.2 | 28.9 | 29.6 | |||||||
| Step acquisition - equity interest re-measurement gain | (9.1) | |||||||||
| Net unrealized (gains) losses on derivative instruments | (20.5) | [1] | 4.0 | [1] | 83.8 | [1] | ||||
| Deferred income taxes | (29.2) | (0.1) | 0.1 | |||||||
| Other, net | 4.4 | 0.1 | (0.5) | |||||||
| Change in operating assets and liabilities which (used) provided cash, net of effects of acquisitions: | ||||||||||
| Accounts receivable | (10.7) | 5.8 | (36.6) | |||||||
| Inventories | (0.6) | (8.7) | (13.3) | |||||||
| Accounts payable | 46.3 | 5.7 | 21.5 | |||||||
| Accrued interest | 1.8 | (0.6) | ||||||||
| Other current assets and liabilities | 7.5 | 2.6 | (3.2) | |||||||
| Other long-term assets and liabilities | (2.6) | 1.6 | 0.9 | |||||||
| Net cash provided by operating activities | 204.1 | 139.7 | 117.3 | |||||||
| INVESTING ACTIVITIES: | ||||||||||
| Capital expenditures | (104.2) | (50.7) | (164.8) | |||||||
| Acquisitions, net of cash acquired | (60.5) | (203.3) | (44.5) | |||||||
| Acquisition of unconsolidated affiliates | (114.3) | |||||||||
| Investments in unconsolidated affiliates | (15.1) | (28.6) | (7.0) | |||||||
| Return of investment from unconsolidated affiliates | 14.9 | 1.2 | 2.2 | |||||||
| Proceeds from sales of assets | 5.2 | 3.4 | 0.3 | |||||||
| Purchases of available-for-sale securities | (1.1) | |||||||||
| Proceeds from sales of available-for-sale securities | 10.1 | 51.1 | ||||||||
| Net cash used in investing activities | (274.0) | (267.9) | (163.8) | |||||||
| FINANCING ACTIVITIES: | ||||||||||
| Proceeds from debt | 1,524.0 | 868.2 | 237.0 | |||||||
| Payments of debt | (1,425.0) | (833.4) | (280.5) | |||||||
| Payment of deferred financing costs | (4.2) | (2.1) | ||||||||
| Proceeds from issuance of common units, net of offering costs | 169.7 | 189.3 | 69.5 | |||||||
| Excess purchase price over acquired assets | (35.7) | |||||||||
| Net change in advances to predecessor from DCP Midstream, LLC | 27.4 | (6.4) | ||||||||
| Distributions to unitholders and general partner | (132.4) | (101.9) | (85.3) | |||||||
| Distributions to noncontrolling interests | (44.8) | (25.6) | (27.0) | |||||||
| Contributions from noncontrolling interests | 18.3 | 14.3 | 78.7 | |||||||
| Contributions from DCP Midstream, LLC | 0.6 | 0.7 | ||||||||
| Purchase of additional interest in a subsidiary | (3.5) | |||||||||
| Net cash provided by (used in) financing activities | 69.9 | 132.8 | (13.3) | |||||||
| Net change in cash and cash equivalents | 4.6 | (59.8) | ||||||||
| Cash and cash equivalents, beginning of period | 6.7 | [2] | 2.1 | 61.9 | ||||||
| Cash and cash equivalents, end of period | 6.7 | 6.7 | [2] | 2.1 | ||||||
|
Cash Proceeds [Member]
|
||||||||||
| FINANCING ACTIVITIES: | ||||||||||
| Contributions from noncontrolling interests | $ 13.8 | |||||||||
|
||||||||||
| X | ||||||||||
|
- Definition
Advances To Equity Method Investments No definition available.
|
| X | ||||||||||
|
- Definition
Excess Purchase Price Of Acquired Assets. No definition available.
|
| X | ||||||||||
|
- Definition
Net Change In Advances To Predecessor No definition available.
|
| X | ||||||||||
|
- Definition
Other Long Term Assets And Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Return on investment from unconsolidated affiliate No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in cash and cash equivalents. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the amount due from borrowers for interest payments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in other assets used in operating activities less other operating liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets and liabilities, other noncurrent assets and liabilities, or a combination of other current and noncurrent assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net cash inflow or outflow from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The net cash inflow or outflow from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total distributions to each class of partners (i.e., general, limited and preferred partners). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for the return on capital for noncontrolled interest in the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for loan and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow associated with the purchase of noncontrolling interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from the issuance of common limited partners units during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow contributed by noncontrolled interest that purchase additional shares or otherwise increase their ownership stake in a subsidiary of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Description Of Business And Basis Of Presentation
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12 Months Ended | ||
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Dec. 31, 2011
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| Description Of Business And Basis Of Presentation [Abstract] | |||
| Description Of Business And Basis Of Presentation |
DCP Midstream Partners, LP, with its consolidated subsidiaries, or us, we or our, is engaged in the business of gathering, compressing, treating, processing, transporting, storing and selling natural gas; and producing, fractionating, transporting, storing and selling NGLs and condensate. We are a Delaware limited partnership that was formed in August 2005. We completed our initial public offering on December 7, 2005. Our partnership includes: our natural gas services business (which includes our Northern Louisiana system; our Southern Oklahoma system; our 40% limited liability company interest in Discovery Producer Services LLC, or Discovery; our Wyoming system; a 75% interest in Collbran Valley Gas Gathering, LLC, or Collbran or our Colorado system (of which 5% was acquired in February 2010); our 50.1% interest in DCP East Texas Holdings, LLC, or our East Texas system (of which 25.1% was acquired in April 2009); our Michigan system (a portion of which was acquired November 2009); our 33.33% interest in our DCP Southeast Texas Holdings, GP, or our Southeast Texas system acquired in January 2011); our NGL logistics business (which includes Marysville Hydrocarbons Holdings, LLC, or Marysville, acquired in December 2010, the Wattenberg pipeline acquired in January 2010 and our 100% interest in the Black Lake Pipeline Company, or Black Lake, 55% of which was acquired in July 2010, comprised of: (1) a 5% interest acquired from DCP Midstream, LLC, in a transaction among entities under common control, and (2) an additional 50% interest acquired from an affiliate of BP PLC; and the DJ Basin NGL Fractionators acquired in March 2011); and our wholesale propane logistics business (which includes Atlantic Energy acquired in July 2010). Our operations and activities are managed by our general partner, DCP Midstream GP, LP, which in turn is managed by its general partner, DCP Midstream GP, LLC, which we refer to as the General Partner, and is wholly-owned by DCP Midstream, LLC. DCP Midstream, LLC and its subsidiaries and affiliates, collectively referred to as DCP Midstream, LLC, is owned 50% by Spectra Energy Corp, or Spectra Energy, and 50% by ConocoPhillips. DCP Midstream, LLC directs our business operations through its ownership and control of the General Partner. DCP Midstream, LLC and its affiliates' employees provide administrative support to us and operate most of our assets. DCP Midstream, LLC owns approximately 27% of us. Transactions between us and other DCP Midstream, LLC operations have been identified in the consolidated financial statements as transactions between affiliates. The consolidated financial statements include the accounts of the Partnership and all majority-owned subsidiaries where we have the ability to exercise control and undivided interests in jointly owned assets. Investments in greater than 20% owned affiliates that are not variable interest entities and where we do not have the ability to exercise control, and investments in less than 20% owned affiliates where we have the ability to exercise significant influence, are accounted for using the equity method. All intercompany balances and transactions have been eliminated. In April 2009 and January 2011, we acquired an additional 25.1% limited liability company interest in East Texas and a 33.33% interest in Southeast Texas, respectively, in transactions among entities under common control. These transfers of net assets between entities under common control were accounted for as if the transfer occurred at the beginning of the period, and prior years were retrospectively adjusted to furnish comparative information similar to the pooling method. Accordingly, our consolidated financial statements have been adjusted to include the historical results of our 25.1% and 33.33% interests in East Texas and Southeast Texas, respectively, for all periods presented. We refer to our 25.1% and 33.33% interests in East Texas and Southeast Texas, prior to our acquisition from DCP Midstream, LLC in April 2009 and January 2011, respectively, as our "predecessor." We recognize transfers of net assets between entities under common control at DCP Midstream, LLC's basis in the net assets contributed. The amount of the purchase price in excess, or in deficit, of DCP Midstream, LLC's basis in the net assets is recognized as a reduction, or an addition, to partners' equity. The financial statements of our predecessor have been prepared from the separate records maintained by DCP Midstream, LLC and may not necessarily be indicative of the conditions that would have existed or the results of operations if our predecessor had been operated as an unaffiliated entity.
The results of operations for acquisitions accounted for as business combinations have been included in the consolidated financial statements since their respective acquisition dates and we have retrospectively adjusted the December 31, 2010 consolidated balance sheet for changes in our purchase price allocation for our December 30, 2010 acquisition of Marysville. |
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- Details
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- Definition
The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary Of Significant Accounting Policies
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Summary Of Significant Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary Of Significant Accounting Policies |
Use of Estimates — Conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes. Although these estimates are based on management's best available knowledge of current and expected future events, actual results could differ from those estimates. Cash and Cash Equivalents — We consider investments in highly liquid financial instruments purchased with an original stated maturity of 90 days or less to be cash equivalents. Short-Term Investments — We may invest available cash balances in various financial instruments, such as commercial paper and money market instruments. These instruments provide for a high degree of liquidity through features which allow for the redemption of the investment at its face amount plus earned income. As we generally intend to sell these instruments within one year or less from the balance sheet date, and as they are available for use in current operations, they are classified as current assets, unless otherwise restricted. We classify all short-term investments as available-for-sale as we do not intend to hold them to maturity, nor are they bought or sold with the objective of generating profit on short-term differences in prices. Short-term investments are recorded at fair value, with changes in fair value recorded as unrealized gains and losses in accumulated other comprehensive income (loss), or AOCI. The cost, including accrued interest on investments, approximates fair value, due to the short-term, highly liquid nature of the securities held by us; interest rates are re-set on a daily, weekly or monthly basis.
Inventories — Inventories, which consist primarily of NGLs and natural gas, are recorded at the lower of weighted-average cost or market value. Transportation costs are included in inventory. Property, Plant and Equipment — Property, plant and equipment are recorded at historical cost. The cost of maintenance and repairs, which are not significant improvements, are expensed when incurred. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. Goodwill and Intangible Assets — Goodwill is the cost of an acquisition less the fair value of the net assets of the acquired business. We perform an annual impairment test of goodwill in the third quarter, and update the test during interim periods when we believe events or changes in circumstances indicate that we may not be able to recover the carrying value of a reporting unit. We primarily use a discounted cash flow analysis to perform the assessment. Key assumptions in the analysis include the use of an appropriate discount rate, estimated future cash flows and an estimate of operating and general and administrative costs. In estimating cash flows, we incorporate current market information, as well as historical and other factors, into our forecasted commodity prices. For certain reporting units, we may elect to first assess qualitative factors to determine whether it is more likely than not that the fair value of our reporting units is less than the carrying value. Intangible assets consist primarily of customer contracts, including commodity purchase, transportation and processing contracts and related relationships. These intangible assets are amortized on a straight-line basis over the period of expected future benefit. Intangible assets are removed from the gross carrying amount and the total of accumulated amortization in the period in which they become fully amortized. Long-Lived Assets — We periodically evaluate whether the carrying value of long-lived assets has been impaired when circumstances indicate the carrying value of those assets may not be recoverable. This evaluation is based on undiscounted cash flow projections. The carrying amount is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. We consider various factors when determining if these assets should be evaluated for impairment, including but not limited to:
If the carrying value is not recoverable, the impairment loss is measured as the excess of the asset's carrying value over its fair value. We assess the fair value of long-lived assets using commonly accepted techniques, and may use more than one method, including, but not limited to, recent third party comparable sales and discounted cash flow models. Significant changes in market conditions resulting from events such as the condition of an asset or a change in management's intent to utilize the asset would generally require management to reassess the cash flows related to the long-lived assets.
Asset Retirement Obligations — Our asset retirement obligations relate primarily to the retirement of various gathering pipelines and processing facilities, obligations related to right-of-way easement agreements, and contractual leases for land use. We adjust our asset retirement obligation each quarter for any liabilities incurred or settled during the period, accretion expense and any revisions made to the estimated cash flows. Asset retirement obligations associated with tangible long-lived assets are recorded at fair value in the period in which they are incurred, if a reasonable estimate of fair value can be made, and added to the carrying amount of the associated asset. This additional carrying amount is then depreciated over the life of the asset. The liability is determined using a risk free interest rate, and increases due to the passage of time based on the time value of money until the obligation is settled. Investments in Unconsolidated Affiliates — We use the equity method to account for investments in greater than 20% owned affiliates that are not variable interest entities and where we do not have the ability to exercise control, and investments in less than 20% owned affiliates where we have the ability to exercise significant influence. We evaluate our investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying value of such investments may have experienced a decline in value. When there is evidence of loss in value, we compare the estimated fair value of the investment to the carrying value of the investment to determine whether impairment has occurred. We assess the fair value of our investments in unconsolidated affiliates using commonly accepted techniques, and may use more than one method, including, but not limited to, recent third party comparable sales and discounted cash flow models. If the estimated fair value is considered to be permanently less than the carrying value, the excess of the carrying value over the estimated fair value is recognized as an impairment loss.
Unamortized Debt Expense — Expenses incurred with the issuance of long-term debt are amortized over the term of the debt using the effective interest method. These expenses are recorded on the consolidated balance sheet as other long-term assets.
Noncontrolling Interest — Noncontrolling interest represents any third party or affiliate interest in non-wholly-owned entities that we consolidate. For financial reporting purposes, the assets and liabilities of these entities are consolidated with those of our own, with any third party or affiliate interest in our consolidated balance sheet amounts shown as noncontrolling interest in equity. Distributions to and contributions from noncontrolling interests represent cash payments to and cash contributions from, respectively, such third party and affiliate investors. Accounting for Risk Management Activities and Financial Instruments — Non-trading energy commodity derivatives are designated as either a hedge of a forecasted transaction or future cash flow (cash flow hedge), a hedge of a recognized asset, liability or firm commitment (fair value hedge), or normal purchases or normal sales. The remaining non-trading derivatives, which are related to asset-based activities for which the normal purchases or normal sale exception is not elected, are recorded at fair value in the consolidated balance sheets as unrealized gains or unrealized losses in derivative instruments, with changes in the fair value recognized in the consolidated statements of operations. For each derivative, the accounting method and presentation of gains and losses or revenue and expense in the consolidated statements of operations are as follows:
Cash Flow and Fair Value Hedges — For derivatives designated as a cash flow hedge or a fair value hedge, we maintain formal documentation of the hedge. In addition, we formally assess both at the inception of the hedging relationship and on an ongoing basis, whether the hedge contract is highly effective in offsetting changes in cash flows or fair values of hedged items. All components of each derivative gain or loss are included in the assessment of hedge effectiveness, unless otherwise noted. The fair value of a derivative designated as a cash flow hedge is recorded in the consolidated balance sheets as unrealized gains or unrealized losses on derivative instruments. The effective portion of the change in fair value of a derivative designated as a cash flow hedge is recorded in partners' equity in accumulated other comprehensive income, or AOCI, and the ineffective portion is recorded in the consolidated statements of operations. During the period in which the hedged transaction impacts earnings, amounts in AOCI associated with the hedged transaction are reclassified to the consolidated statements of operations in the same accounts as the item being hedged. Hedge accounting is discontinued prospectively when it is determined that the derivative no longer qualifies as an effective hedge, or when it is probable that the hedged transaction will not occur. When hedge accounting is discontinued because the derivative no longer qualifies as an effective hedge, the derivative is subject to the mark-to-market accounting method prospectively. The derivative continues to be carried on the consolidated balance sheets at its fair value; however, subsequent changes in its fair value are recognized in current period earnings. Gains and losses related to discontinued hedges that were previously accumulated in AOCI will remain in AOCI until the hedged transaction impacts earnings, unless it is probable that the hedged transaction will not occur, in which case, the gains and losses that were previously deferred in AOCI will be immediately recognized in current period earnings. The fair value of a derivative designated as a fair value hedge is recorded for balance sheet purposes as unrealized gains or unrealized losses on derivative instruments. We recognize the gain or loss on the derivative instrument, as well as the offsetting loss or gain on the hedged item in earnings in the current period. All derivatives designated and accounted for as fair value hedges are classified in the same category as the item being hedged in the results of operations. Valuation — When available, quoted market prices or prices obtained through external sources are used to determine a contract's fair value. For contracts with a delivery location or duration for which quoted market prices are not available, fair value is determined based on pricing models developed primarily from historical relationships with quoted market prices and the expected relationship with quoted market prices. Values are adjusted to reflect the credit risk inherent in the transaction as well as the potential impact of liquidating open positions in an orderly manner over a reasonable time period under current conditions. Changes in market prices and management estimates directly affect the estimated fair value of these contracts. Accordingly, it is reasonably possible that such estimates may change in the near term. Revenue Recognition — We generate the majority of our revenues from gathering, processing, compressing, treating, transporting, storing and fractionating natural gas and NGLs, and from trading and marketing of natural gas and NGLs. We realize revenues either by selling the residue natural gas and NGLs, or by receiving fees. We obtain access to commodities and provide our midstream services principally under contracts that contain a combination of one or more of the following arrangements:
Our marketing of natural gas and NGLs consists of physical purchases and sales, as well as positions in derivative instruments. We recognize revenues for sales and services under the four revenue recognition criteria, as follows:
We generally report revenues gross in the consolidated statements of operations, as we typically act as the principal in these transactions, take custody to the product, and incur the risks and rewards of ownership. We recognize revenues for non-trading commodity derivative activity net in the consolidated statements of operations as gains and losses from commodity derivative activity. These activities include mark-to-market gains and losses on energy trading contracts and the settlement of financial or physical energy trading contracts. Quantities of natural gas or NGLs over-delivered or under-delivered related to imbalance agreements with customers, producers or pipelines are recorded monthly as accounts receivable or accounts payable using current market prices or the weighted-average prices of natural gas or NGLs at the plant or system. These balances are settled with deliveries of natural gas or NGLs, or with cash. Significant Customers — There were no third party customers that accounted for more than 10% of total operating revenues for the years ended December 31, 2011, 2010 and 2009. There was one third party customer that accounted for approximately 17% of total operating revenues of the Wholesale Propane Logistics segment for the years ended December 31, 2011 and 2010, respectively, and approximately 12% of revenues for the year ended December 31, 2009. We also had significant transactions with affiliates. Environmental Expenditures — Environmental expenditures are expensed or capitalized as appropriate, depending upon the future economic benefit. Expenditures that relate to an existing condition caused by past operations and that do not generate current or future revenue are expensed. Liabilities for these expenditures are recorded on an undiscounted basis when environmental assessments and/or clean-ups are probable and the costs can be reasonably estimated. Environmental liabilities as of December 31, 2011 and 2010, included in the consolidated balance sheets as other current liabilities amounted to $0.8 million and $0.6 million, respectively, and as other long-term liabilities amounted to $1.2 million and $1.3 million, respectively. Equity-Based Compensation — Equity classified stock-based compensation cost is measured at fair value, based on the closing common unit price at grant date, and is recognized as expense over the vesting period. Liability classified stock-based compensation cost is remeasured at each reporting date at fair value, based on the closing common unit price, and is recognized as expense over the requisite service period. Compensation expense for awards with graded vesting provisions is recognized on a straight-line basis over the requisite service period of each separately vesting portion of the award. Awards granted to non-employees for acquiring, or in conjunction with selling, goods and services are measured at the estimated fair value of the goods or services, or the fair value of the award, whichever is more reliably measured. Allowance for Doubtful Accounts — Management estimates the amount of required allowances for the potential non-collectability of accounts receivable generally based upon the number of days past due, past collection experience and consideration of other relevant factors. However, past experience may not be indicative of future collections and therefore additional charges could be incurred in the future to reflect differences between estimated and actual collections. Income Taxes — We are structured as a master limited partnership which is a pass-through entity for federal income tax purposes. Our income tax expense includes certain jurisdictions, including state, local, franchise and margin taxes of the master limited partnership and subsidiaries. We follow the asset and liability method of accounting for income taxes. Under this method, deferred income taxes are recognized for the tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of the assets and liabilities. Our taxable income or loss, which may vary substantially from the net income or loss reported in the consolidated statements of operations, is proportionately included in the federal returns of each partner. Net Income or Loss per Limited Partner Unit — Basic and diluted net income or loss per limited partner unit, or LPU, is calculated by dividing limited partners' interest in net income or loss, by the weighted-average number of outstanding LPUs during the period. Diluted net income per limited partner unit is computed based on the weighted average number of units plus the effect of dilutive potential units outstanding during the period using the two-class method. |
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- Definition
The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Recent Accounting Pronouncements
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12 Months Ended | ||
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Dec. 31, 2011
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| Recent Accounting Pronouncements [Abstract] | |||
| Recent Accounting Pronouncements |
Financial Accounting Standards Board, or FASB, Accounting Standards Update, or ASU, 2011-11 "Balance Sheet (Topic 210) Disclosures about Offsetting Assets and Liabilities," or ASU 2011-11 — In December 2011, the FASB issued ASU 2011-11, which amends Accounting Standards Codification, or ASC, Topic 210 "Balance Sheet." ASU 2011-11 will require entities to disclose information about offsetting and related arrangements to enable financial statement users to understand the effect of such arrangements on the statement of financial position. The provisions of ASU 2011-11 are effective for us in interim and annual reporting periods beginning on or after January 1, 2013 and we are currently assessing the impact of adoption on our consolidated results of operations, cash flows and financial position.
ASU 2011-08 "Intangibles – Goodwill and Other (Topic 350)," or ASU 2011-08 — In September 2011, the FASB issued ASU 2011-08, which amends Accounting Standards Codification, or ASC, Topic 350 "Intangibles — Goodwill and Other." ASU 2011-08 provides additional guidance on the two-step test for goodwill impairment as previously described in Topic 350 "Intangibles — Goodwill and Other." Under the new guidance, entities may elect to first assess qualitative factors instead of calculating the fair value of a reporting unit unless the entity determines that it is more likely than not the fair value of the reporting unit is less than its carrying value. This ASU is effective for interim and annual goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. We elected to adopt ASU 2011-08 for our 2011 annual goodwill impairment test. There was no impact from the adoption of ASU 2011-08 on our consolidated results of operations, cash flows and financial position. ASU 2011-04 "Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs", or ASU 2011-04 — In May 2011, the FASB issued ASU 2011-04 which amends ASC, Topic 820 "Fair Value Measurements and Disclosures" to change the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements, clarify the FASB's intent about the application of existing fair value measurement requirements, and change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The provisions of ASU 2011-04 are effective for us for interim and annual periods beginning after December 15, 2011 and we are currently assessing the impact of adoption on our consolidated results of operations, cash flows and financial position. |
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- Definition
Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Acquisitions
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Dec. 31, 2011
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| Acquisitions [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Acquisitions |
On August 1, 2011, we reached an agreement with DCP Midstream, LLC for us to construct a 200 MMcf/d cryogenic natural gas processing plant, or the Eagle Plant, in the Eagle Ford shale which represents an investment of approximately $120.0 million. In support of our construction of the Eagle Plant, we entered into a 15 year fee-based processing agreement with an affiliate of DCP Midstream, LLC, which provides us with a fixed demand charge for 150 MMcf/d along with a throughput fee on all volumes processed. The processing agreement commences with commercial operations of the new plant, which is expected to be online by the fourth quarter of 2012. In conjunction with the agreement, we also entered into a purchase and sale agreement with DCP Midstream, LLC to purchase certain tangible assets and land located in the Eagle Ford Shale for $23.4 million, financed initially at closing with borrowings under the Partnership's revolving credit facility. On March 24, 2011, we acquired two NGL fractionation facilities in Weld County, Colorado, located in the Denver-Julesburg Basin, from a third party in a transaction accounted for as an asset acquisition. We paid a purchase price of $30.0 million, financed initially at closing with borrowings under the Partnership's revolving credit facility, and received a post-closing purchase price adjustment of $0.4 million. The NGL fractionation facilities are located on DCP Midstream, LLC's processing plant sites and are operated by DCP Midstream, LLC. Subsequent to our acquisition, DCP Midstream, LLC continues to operate and supply certain committed NGLs produced by them in Weld County to our DJ Basin NGL Fractionators under the existing agreements that are effective through March 2018. The results of the assets are included in our NGL Logistics segment prospectively, from the date of acquisition. On January 1, 2011, we acquired a 33.33% interest in Southeast Texas for $150.0 million, in a transaction among entities under common control, financed initially at closing with proceeds from our November 2010 public equity offering and borrowings under the Partnership's revolving credit facility. DCP Midstream, LLC's historical carrying value of the net assets acquired was $114.3 million; accordingly we have recorded the $35.7 million excess purchase price over acquired assets as a decrease in common unitholders equity. The results of our 33.33% interest in Southeast Texas are included in our Natural Gas Services segment for all periods presented. On December 30, 2010, we acquired all of the interests in Marysville. The acquisition involved three separate transactions with a number of parties. We acquired a 90% interest in Marysville from Dart Energy Corporation, a 5% interest in Marysville from Prospect Street Energy, LLC and 100% of EE Group, LLC, which owned the remaining 5% interest in Marysville. We paid a purchase price of $94.8 million plus $6.0 million for net working capital and other adjustments for an aggregate purchase price of $100.8 million, subject to customary purchase price adjustments, for our 100% interest. The cash purchase was financed initially at closing with borrowings under the Partnership's revolving credit facility. $21.2 million of the purchase price was deposited in an indemnity escrow to satisfy certain tax liabilities and provide for breaches of representations and warranties of the sellers. $19.5 million remains in the escrow account after $1.7 million was released on June 15, 2011. The results of the Marysville acquisition are included in our NGL Logistics segment prospectively, from the date of acquisition. On January 4, 2011, we merged two wholly-owned subsidiaries of Marysville and converted the combined entity's organizational structure from a corporation to a limited liability company. This conversion to a limited liability company triggered tax liabilities, resulting from built-in tax gains recognized in the transaction, to become currently payable. Accordingly, $35.0 million of estimated deferred tax liabilities associated with this transaction and recorded at December 31, 2010, became currently payable as of January 4, 2011. These tax liabilities are unrelated to the tax liabilities of Marysville for which an indemnity escrow has been established. During 2011, we made federal and state tax payments of $29.3 million and $0.3 million, respectively, related to our estimated $35.0 million tax liability that resulted from our acquisition of Marysville. The remaining $5.4 million estimated tax payable has been reclassified to goodwill in our final accounting for the Marysville business combination. We have updated our accounting for the Marysville business combination for the fair value of assets acquired and liabilities assumed including intangible assets, property, plant and equipment and goodwill. The purchase price allocation as of December 31, 2011 is as follows:
The results of operations for acquisitions accounted for as a business combination are included in the DCP Midstream Partners, LP results subsequent to the date of acquisition. Accordingly, for the year ended December 31, 2011 total operating revenues of $26.7 million, and net income attributable to the Partnership of $12.6 million, associated with Marysville, are included in the consolidated statement of operations. Pro forma information is presented for comparative periods prior to the date of acquisition, however, comparative periods in the consolidated financial statements are not adjusted to include the results of the acquisition.
The following table presents unaudited pro forma information for the consolidated statement of operations for the year ended December 31, 2010, as if the acquisition of Marysville had occurred at the beginning of the period presented.
The pro forma information is not intended to reflect actual results that would have occurred if the acquired business had been combined during the period presented, nor is it intended to be indicative of the results of operations that may be achieved by us in the future. |
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- Definition
The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Agreements And Transactions With Affiliates
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Dec. 31, 2011
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| Agreements And Transactions With Affiliates [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Agreements And Transactions With Affiliates |
DCP Midstream, LLC Omnibus Agreement and Other General and Administrative Charges We have entered into an omnibus agreement, as amended, or the Omnibus Agreement, with DCP Midstream, LLC. Following is a summary of the fees we incurred under the Omnibus Agreement as well as other fees paid to DCP Midstream, LLC:
Under the Omnibus Agreement, we are required to reimburse DCP Midstream, LLC for salaries of operating personnel and employee benefits as well as capital expenditures, maintenance and repair costs, taxes and other direct costs incurred by DCP Midstream, LLC on our behalf. We also pay DCP Midstream, LLC for certain costs incurred and centralized corporate functions performed by DCP Midstream, LLC on our behalf, including legal, accounting, cash management, insurance administration and claims processing, risk management, health, safety and environmental, information technology, human resources, credit, payroll, taxes and engineering. The Omnibus Agreement also addresses the following matters:
Any or all of the provisions of the Omnibus Agreement, other than the indemnification provisions, will be terminable by DCP Midstream, LLC at its option if the general partner is removed without cause and units held by the general partner and its affiliates are not voted in favor of that removal. The Omnibus Agreement will also terminate in the event of a change of control of us, the general partner (DCP Midstream GP, LP) or the General Partner (DCP Midstream GP, LLC). East Texas incurs general and administrative expenses directly from DCP Midstream, LLC. East Texas incurred $7.5 million, $7.8 million and $8.5 million during the years ended December 31, 2011, 2010 and 2009, respectively, for general and administrative expenses from DCP Midstream, LLC. In addition to the Omnibus Agreement and amounts incurred by East Texas, we incurred other general and administrative fees with fees with DCP Midstream, LLC, of $1.4 million, $1.5 million and $1.9 million, for the years ended December 31, 2011, 2010 and 2009, respectively. These amounts include allocated expenses, including professional services, insurance and internal audit. Competition None of DCP Midstream, LLC, or any of its affiliates, including Spectra Energy and ConocoPhillips, is restricted, under either the partnership agreement or the Omnibus Agreement, from competing with us. DCP Midstream, LLC and any of its affiliates, including Spectra Energy and ConocoPhillips, may acquire, construct or dispose of additional midstream energy or other assets in the future without any obligation to offer us the opportunity to purchase or construct those assets. Other Agreements and Transactions with DCP Midstream, LLC DCP Midstream, LLC was a significant customer during the years ended December 31, 2011, 2010 and 2009. We sell a portion of our residue gas, NGLs and condensate to, purchase natural gas and other petroleum products from, and provide gathering and transportation services for, DCP Midstream, LLC. We anticipate continuing to purchase from and sell commodities and services to DCP Midstream, LLC in the ordinary course of business. In addition, DCP Midstream, LLC conducts derivative activities on our behalf. We have and may continue to enter into market based derivative transactions directly with DCP Midstream, LLC, whereby DCP Midstream is the counterparty. We have a contractual arrangement with DCP Midstream, LLC, through March 2022, in which we pay DCP Midstream, LLC a fee for processing services associated with the gas we gather on our Southern Oklahoma system, which is part of our Natural Gas Services segment. In addition, in February 2010, a contract was signed with DCP Midstream, LLC providing for adjustments to those fees based upon plant efficiencies related to our portion of volumes from the Southern Oklahoma system being processed at DCP Midstream, LLC's plant through March 2022. We generally report fees associated with these activities in the consolidated statements of operations as purchases of natural gas, propane, NGLs and condensate from affiliates. In addition, as part of this arrangement, DCP Midstream, LLC pays us a fee for certain gathering services. We generally report revenues associated with these activities in the consolidated statements of operations as transportation, processing and other to affiliates. DCP Midstream, LLC owns certain assets and is party to certain contractual relationships around our Pelico system, included in our Northern Louisiana system, which is part of our Natural Gas Services segment, that are periodically used for the benefit of Pelico. DCP Midstream, LLC is able to source natural gas upstream of Pelico and deliver it to us and is able to take natural gas from the outlet of the Pelico system and market it downstream of Pelico. We purchase natural gas from DCP Midstream, LLC upstream of Pelico and transport it to Pelico under a firm transportation agreement with an affiliate. Our purchases from DCP Midstream, LLC are at DCP Midstream, LLC's actual acquisition cost plus any transportation service charges. Volumes that exceed our on-system demand are sold to DCP Midstream, LLC at an index-based price, less contractually agreed to marketing fees. Revenues associated with these activities are reported gross in our consolidated statements of operations as sales of natural gas, propane, NGLs and condensate to affiliates.
On August 1, 2011, we reached an agreement with DCP Midstream, LLC for us to construct a 200 MMcf/d cryogenic natural gas processing plant, in the Eagle Ford shale which represents an investment of approximately $120.0 million. In support of our construction of the Eagle Plant, we entered into a 15 year fee-based processing agreement with an affiliate of DCP Midstream, LLC, which provides us with a fixed demand charge for 150 MMcf/d along with a throughput fee on all volumes processed. The processing agreement commences with commercial operations of the new plant, which is expected to be online by the fourth quarter of 2012. In conjunction with the agreement, we also entered into a purchase and sale agreement with DCP Midstream, LLC to purchase certain tangible assets and land located in the Eagle Ford Shale for $23.4 million. On November 4, 2011, we entered into agreements with DCP Midstream, LLC, to acquire the remaining 49.9% interest in East Texas for aggregate consideration of $165.0 million, subject to certain working capital and other customary purchase price adjustments. Prior to the contribution of the additional interest in East Texas, we owned a 50.1% interest which we account for as a consolidated subsidiary. The contribution of the remaining 49.9% interest in East Texas represents a transaction between entities under common control, but does not represent a change in reporting entity. Accordingly, we will include the results of the remaining 49.9% interest in East Texas prospectively from the date of acquisition. This acquisition closed on January 3, 2012. During the year ended December 31, 2011, East Texas received $7.8 million in business interruption recoveries related to the first quarter 2009 fire that was caused by a third party underground pipeline rupture outside of our property, or the East Texas recovery settlement. We have allocated the recoveries based upon relative ownership percentages at the time the losses were incurred, factoring in amounts previously reimbursed to us by DCP Midstream, LLC. For the year ended December 31, 2011, we recorded $6.6 million to our consolidated statement of operations in "sales of natural gas, propane, NGLs and condensate", with $4.6 million representing DCP Midstream, LLC's portion in "net income attributable to noncontrolling interests." In conjunction with our acquisition of a 33.33% interest in Southeast Texas from DCP Midstream, LLC for $150.0 million in our Natural Gas Services segment, we entered into a joint venture agreement. The terms of the joint venture agreement provide that distributions and earnings to us for the first seven years related to storage and transportation gross margin will be pursuant to a fee-based arrangement, based on storage capacity and tailgate volumes. Distributions and earnings related to the gathering and processing business, along with reductions for all expenditures, will be pursuant to our and DCP Midstream, LLC's respective ownership interests in Southeast Texas. This transaction closed on January 1, 2011. On February 27, 2012, we entered into agreements with DCP Midstream, LLC, to acquire the remaining 66.67% interest in Southeast Texas for aggregate consideration of $240.0 million. This acquisition is expected to close by the second quarter of 2012. In conjunction with our acquisition of a 50.1% limited liability company interest in East Texas (25.0% of which was acquired in July 2007, and 25.1% in April 2009), which is part of our Natural Gas Services segment, we entered into agreements with DCP Midstream, LLC whereby DCP Midstream, LLC will reimburse East Texas for certain expenditures on East Texas capital projects. These reimbursements are for certain capital projects which have commenced within three years from the respective acquisition dates. DCP Midstream, LLC made capital contributions to East Texas for capital projects of $18.3 million and $13.8 million for the years ended December 31, 2011 and 2010, respectively. On September 16, 2010, we entered into an agreement with DCP Midstream, LLC to sell certain surplus equipment at Collbran, part of our Natural Gas Services segment, with a net book value of $6.2 million for net proceeds of $3.6 million. The surplus equipment is the result of a consolidation of operations at our Anderson Gulch plant in the Piceance Basin. The net proceeds of $3.6 million were distributed 75% to us and 25% to the noncontrolling interest in Collbran, based upon proportionate ownership, during the year ended December 31, 2010. The sale was completed when title to the surplus equipment passed to DCP Midstream, LLC in March 2011. We have recognized a distribution of $2.6 million for year ended December 31, 2011 to DCP Midstream, LLC in our consolidated statements of changes in equity representing the difference between the net book value and the proceeds received for the surplus equipment.
In our Natural Gas Services segment, we sell NGLs processed at certain of our plants, and sell condensate removed from the gas gathering systems that deliver to certain of our systems under contracts to a subsidiary of DCP Midstream, LLC equal to that subsidiary's net weighted-average sales price, adjusted for transportation, processing and other charges from the tailgate of the respective asset. In our NGL Logistics segment, we also have a contractual arrangement with a subsidiary of DCP Midstream, LLC that provides that DCP Midstream, LLC will pay us to transport NGLs over our Seabreeze and Wilbreeze pipelines, pursuant to fee-based rates that will be applied to the volumes transported. DCP Midstream, LLC is the sole shipper on these pipelines under the transportation agreements. We generally report revenues associated with these activities in the consolidated statements of operations as transportation, processing and other to affiliates. In conjunction with our acquisition of the Wattenberg pipeline, which is part of our NGL Logistics segment, we signed a transportation agreement with DCP Midstream, LLC pursuant to fee-based rates that will be applied to the volumes transported, which was effective through December 31, 2010. Effective January 1, 2011, we entered into a 10-year dedication and transportation agreement with a subsidiary of DCP Midstream, LLC whereby certain NGL volumes produced at several of DCP Midstream, LLC's processing facilities are dedicated for transportation on the Wattenberg pipeline. We collect fee-based transportation revenues under our tariff. We generally report revenues associated with these activities in the consolidated statements of operations as transportation, processing and other to affiliates. In conjunction with our acquisition of our DJ Basin NGL Fractionators in our NGL Logistics segment, we pay a fee to DCP Midstream, LLC to operate our DJ Basin NGL Fractionators and receive fees for the processing of DCP Midstream, LLC's committed NGLs produced by them in Weld County at our DJ Basin NGL Fractionators under agreements that are effective through March 2018. During the year ended December 31, 2011 we incurred fees $0.6 million, which are included in operating and maintenance expense in the consolidated statements of operations. DCP Midstream, LLC has issued parental guarantees, totaling $70.0 million as of December 31, 2011, in favor of certain counterparties to our commodity derivative instruments to mitigate a portion of our collateral requirements with those counterparties. We pay DCP Midstream, LLC interest of 0.5% per annum on these outstanding guarantees. DCP Midstream, LLC has issued parental guarantees for its 49.9% limited liability company interest in East Texas, totaling $6.0 million as of December 31, 2011, in favor of certain counterparties to processing and transportation agreements at East Texas. Concurrently, we issued similar guarantees for our 50.1% interest. On January 3, 2012, we completed the acquisition of the remaining 49.9% interest in East Texas from DCP Midstream. Spectra Energy We have a propane supply agreement with Spectra Energy, effective from May 1, 2008 through April 30, 2012, which provides us propane supply at our marine terminals, which are included in our Wholesale Propane Logistics segment, for up to approximately 185 million gallons of propane annually. We are currently assessing available options for future supply sources. In December 2010, Spectra Energy's international propane supplier breached its contract with Spectra Energy by failing to make certain scheduled propane deliveries that were to be delivered to us under our propane supply contracts with Spectra Energy. We were able to secure spot shipments on the open market at a price higher than our contract price to cover these missing deliveries. In December 2010, Spectra Energy made a $17.0 million payment to us to reimburse us for the damages we incurred for our open market purchases.
ConocoPhillips We have multiple agreements with ConocoPhillips and its affiliates. The agreements include fee-based and percent-of-proceeds gathering and processing arrangements, and gas purchase and gas sales agreements. We anticipate continuing to purchase from and sell these commodities to ConocoPhillips and its affiliates in the ordinary course of business. In addition, we may be reimbursed by ConocoPhillips for certain capital projects where the work is performed by us. We received $0.1 million, $0.2 million and $0.6 million of capital reimbursements during the years ended December 31, 2011, 2010 and 2009, respectively. Summary of Transactions with Affiliates The following table summarizes the transactions with affiliates:
We had balances with affiliates as follows:
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The entire disclosure for related party transactions, including the nature of the relationship(s), a description of the transactions, the amount of the transactions, the effects of any change in the method of establishing the terms of the transaction from the previous period, stated interest rate, expiration date, terms and manner of settlement per the agreement with the related party, and amounts due to or from related parties. If the entity and one or more other entities are under common ownership or management control and this control affects the operating results or financial position, disclosure includes the nature of the control relationship even if there are no transactions between the entities. Disclosure may also include the aggregate amount of current and deferred tax expense for each statement of earnings presented where the entity is a member of a group that files a consolidated tax return, the amount of any tax related balances due to or from affiliates as of the date of each statement of financial position presented, the principal provisions of the method by which the consolidated amount of current and deferred tax expense is allocated to the members of the group and the nature and effect of any changes in that method. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Property, Plant And Equipment
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Dec. 31, 2011
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| Property, Plant And Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant And Equipment |
A summary of property, plant and equipment by classification is as follows:
Interest capitalized on construction projects in 2011, 2010 and 2009, was $1.6 million, $0.2 million and $1.3 million, respectively. Depreciation expense was $74.9 million, $70.0 million and $62.3 million for the years ended December 31, 2011, 2010 and 2009, respectively. Asset Retirement Obligations — As of December 31, 2011, we had asset retirement obligations of $11.4 million included in other long-term liabilities in the consolidated balance sheets. As of December 31, 2010 we had asset retirement obligations of $10.8 million included in other long-term liabilities in the consolidated balance sheets. Accretion expense for the years ended December 31, 2011, 2010 and 2009 was $0.6 million, $0.6 million and $0.3 million, respectively. We identified various assets as having an indeterminate life, for which there is no requirement to establish a fair value for future retirement obligations associated with such assets. These assets include certain pipelines, gathering systems and processing facilities. A liability for these asset retirement obligations will be recorded only if and when a future retirement obligation with a determinable life is identified. These assets have an indeterminate life because they are owned and will operate for an indeterminate future period when properly maintained. Additionally, if the portion of an owned plant containing asbestos were to be modified or dismantled, we would be legally required to remove the asbestos. We currently have no plans to take actions that would require the removal of the asbestos in these assets. Accordingly, the fair value of the asset retirement obligation related to this asbestos cannot be estimated and no obligation has been recorded. |
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The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Goodwill And Intangible Assets
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Dec. 31, 2011
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| Goodwill And Intangible Assets [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill And Intangible Assets |
The change in the carrying amount of goodwill is as follows:
The carrying value of goodwill was $70.3 million and $62.8 million as of December 31, 2011 and December 31, 2010 respectively, for our Natural Gas Services segment, $36.9 million as of both periods for our Wholesale Propane Logistics segment, and $34.7 million and $39.6 million as of December 31, 2011 and December 31, 2010 respectively, for our NGL logistics segment. Goodwill increased in 2011 by $2.6 million as a result of a $7.5 million increase related to a purchase price adjustment for a contingent payment in conjunction with our 2008 Michigan System acquisition; partially offset by a decrease of $4.9 million related to a purchase price adjustment of our Marysville acquisition. Our annual goodwill impairment tests, including our qualitative analysis, indicated that our reporting units' fair value exceeded the carrying or book value. If actual results are not consistent with our assumptions and estimates, or our assumptions and estimates change due to new information, we may be exposed to goodwill impairment charges, which would be recognized in the period in which the carrying value exceeds fair value. Intangible assets consist of customer contracts, including commodity purchase, transportation and processing contracts, and related relationships. The gross carrying amount and accumulated amortization of these intangible assets are included in the accompanying consolidated balance sheets as intangible assets, net, and are as follows:
For the years December 31, 2011, 2010 and 2009, we recorded amortization expense of $6.1 million, $3.7 million and $2.6 million, respectively. As of December 31, 2011, the remaining amortization periods ranged from approximately 10 years to 24 years, with a weighted-average remaining period of approximately 20 years. Estimated future amortization for these intangible assets is as follows:
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The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Investments In Unconsolidated Affiliates
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Dec. 31, 2011
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| Investments In Unconsolidated Affiliates [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investments In Unconsolidated Affiliates |
The following table summarizes our investments in unconsolidated affiliates:
There was a deficit between the carrying amount of the investment and the underlying equity of Discovery of $32.6 million and $35.1 million at December 31, 2011 and 2010, respectively, which is associated with, and is being accreted over, the life of the underlying long-lived assets of Discovery. Earnings from investments in unconsolidated affiliates were as follows:
The following summarizes combined financial information of our investments in unconsolidated affiliates:
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The entire disclosure for equity investment, or group of investments, for which combined disclosure is appropriate, including: (a) the name of each investee and percentage of ownership of common stock, (b) accounting policies for investments in common stock, (c) difference between the amount at which the investment is carried and the amount of underlying equity in net assets and the accounting treatment of the difference, (d) the total fair value of each identified investment for which a market value is available, (e) summarized information as to assets, liabilities, and results of operations of the investees (for investments in unconsolidated subsidiaries, common stock of joint ventures, or other investments using the equity method), and (f) material effects of possible conversions, exercises, or contingent issuances of the investee. Other disclosures include (a) the names of any investee in which the investor owns 20 percent or more of the voting stock and investment is not accounted for using the equity method, and the reasons why not, and (b) the names of any investee in which the investor owns less than 20 percent of the voting stock and the investment is accounted for using the equity method, and the reasons why it is. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurement
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| Fair Value Measurement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurement |
Determination of Fair Value Below is a general description of our valuation methodologies for derivative financial assets and liabilities which are measured at fair value. Fair values are generally based upon quoted market prices, where available. If listed market prices or quotes are not available, we determine fair value based upon a market quote, adjusted by other market-based or independently sourced market data such as historical commodity volatilities, crude oil future yield curves, and/or counterparty specific considerations. These adjustments result in a fair value for each asset or liability under an "exit price" methodology, in line with how we believe a marketplace participant would value that asset or liability. These adjustments may include amounts to reflect counterparty credit quality, the effect of our own creditworthiness, the time value of money and/or the liquidity of the market.
We manage our derivative instruments on a portfolio basis and the valuation adjustments described above are calculated on this basis. We believe that the portfolio level approach represents the highest and best use for these assets as there are benefits inherent in naturally offsetting positions within the portfolio at any given time, and this approach is consistent with how a market participant would view and value the assets and liabilities. Although we take a portfolio approach to managing these assets/liabilities, in order to reflect the fair value of any one individual contract within the portfolio, we allocate all valuation adjustments down to the contract level, to the extent deemed necessary, based upon either the notional contract volume, or the contract value, whichever is more applicable. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While we believe that our valuation methods are appropriate and consistent with other market participants, we recognize that the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. We review our fair value policies on a regular basis taking into consideration changes in the marketplace and, if necessary, will adjust our policies accordingly. See Note 12 Risk Management and Hedging Activities. Valuation Hierarchy Our fair value measurements are grouped into a three-level valuation hierarchy. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows.
A financial instrument's categorization within the hierarchy is based upon the input that requires the highest degree of judgment in the determination of the instrument's fair value. Following is a description of the valuation methodologies used as well as the general classification of such instruments pursuant to the hierarchy. Commodity Derivative Assets and Liabilities We enter into a variety of derivative financial instruments, which may include over the counter, or OTC, instruments, such as natural gas, crude oil or NGL contracts. Within our Natural Gas Services segment we typically use OTC derivative contracts in order to mitigate a portion of our exposure to natural gas, NGL and condensate price changes. We also may enter into natural gas derivatives to lock in margin around our storage and transportation assets. These instruments are generally classified as Level 2. Depending upon market conditions and our strategy, we may enter into OTC derivative positions with a significant time horizon to maturity, and market prices for these OTC derivatives may only be readily observable for a portion of the duration of the instrument. In order to calculate the fair value of these instruments, readily observable market information is utilized to the extent that it is available; however, in the event that readily observable market data is not available, we may interpolate or extrapolate based upon observable data. In instances where we utilize an interpolated or extrapolated value, and it is considered significant to the valuation of the contract as a whole, we would classify the instrument within Level 3. Within our Wholesale Propane Logistics segment, we may enter into a variety of financial instruments to either secure sales or purchase prices, or capture a variety of market opportunities. Since financial instruments for NGLs tend to be counterparty and location specific, we primarily use the OTC derivative instrument markets, which are not as active and liquid as exchange traded instruments. Market quotes for such contracts may only be available for short dated positions (up to six months), and an active market itself may not exist beyond such time horizon. Contracts entered into with a relatively short time horizon for which prices are readily observable in the OTC market are generally classified within Level 2. Contracts with a longer time horizon, for which we internally generate a forward curve to value such instruments, are generally classified within Level 3. The internally generated curve may utilize a variety of assumptions including, but not limited to, historical and future expected relationship of NGL prices to crude oil prices, the knowledge of expected supply sources coming on line, expected weather trends within certain regions of the United States, and the future expected demand for NGLs. Each instrument is assigned to a level within the hierarchy at the end of each financial quarter depending upon the extent to which the valuation inputs are observable. Generally, an instrument will move toward a level within the hierarchy that requires a lower degree of judgment as the time to maturity approaches, and as the markets in which the asset trades will likely become more liquid and prices more readily available in the market, thus reducing the need to rely upon our internally developed assumptions. However, the level of a given instrument may change, in either direction, depending upon market conditions and the availability of market observable data. Interest Rate Derivative Assets and Liabilities We use interest rate swap and forward-starting interest rate swap agreements as part of our overall capital strategy. These instruments effectively exchange a portion of our existing floating rate debt for fixed-rate debt and lock in rates on our anticipated future fixed-rate debt, respectively. Our swaps are generally priced based upon a London Interbank Offered Rate, or LIBOR, instrument with similar duration, adjusted by the credit spread between our company and the LIBOR instrument. Given that a portion of the swap value is derived from the credit spread, which may be observed by comparing similar assets in the market, these instruments are classified within Level 2. Default risk on either side of the swap transaction is also considered in the valuation. We record counterparty credit and entity valuation adjustments in the valuation of our interest rate swaps; however, these reserves are not considered to be a significant input to the overall valuation. Nonfinancial Assets and Liabilities We utilize fair value on a non-recurring basis to perform impairment tests as required on our property, plant and equipment, goodwill and intangible assets. Assets and liabilities acquired in business combinations are recorded at their fair value as of the date of acquisition. The inputs used to determine such fair value are primarily based upon internally developed cash flow models and would generally be classified within Level 3, in the event that we were required to measure and record such assets at fair value within our consolidated financial statements. Additionally, we use fair value to determine the inception value of our asset retirement obligations. The inputs used to determine such fair value are primarily based upon costs incurred historically for similar work, as well as estimates from independent third parties for costs that would be incurred to restore leased property to the contractually stipulated condition, and would generally be classified within Level 3. We utilize fair value on a recurring basis to measure our contingent consideration that is a result of certain acquisitions. The inputs used to determine such fair value are primarily based upon internally developed cash flow models and are classified within Level 3.
The following table presents the financial instruments carried at fair value as of December 31, 2011 and 2010, by consolidated balance sheet caption and by valuation hierarchy, as described above:
Changes in Level 3 Fair Value Measurements The tables below illustrate a rollforward of the amounts included in our consolidated balance sheets for derivative financial instruments that we have classified within Level 3. The determination to classify a financial instrument within Level 3 is based upon the significance of the unobservable factors used in determining the overall fair value of the instrument. Since financial instruments classified as Level 3 typically include a combination of observable components (that is, components that are actively quoted and can be validated to external sources) and unobservable components, the gains and losses in the table below may include changes in fair value due in part to observable market factors, or changes to our assumptions on the unobservable components. Depending upon the information readily observable in the market, and/or the use of unobservable inputs, which are significant to the overall valuation, the classification of any individual financial instrument may differ from one measurement date to the next. In the event that there is a movement to/from the classification of an instrument as Level 3, we have reflected such items in the table below within the "Transfers In/Out of Level 3" caption. We manage our overall risk at the portfolio level, and in the execution of our strategy, we may use a combination of financial instruments, which may be classified within any level. Since Level 1 and Level 2 risk management instruments are not included in the rollforward below, the gains or losses in the table do not reflect the effect of our total risk management activities.
During the first quarter of 2010, we recognized the fair value of our contingent consideration, which is classified as Level 3, in relation to our acquisition of an additional 5% interest in Collbran, from Delta, of approximately $1.0 million, which we recorded to other current liabilities in our consolidated balance sheets. Subsequent to the first quarter of 2010, we reassessed the fair value of the contingent consideration and adjusted the fair value of the liability to $0, and accordingly, we recognized $1.0 million in other income in our consolidated results of operations during the year ended December 31, 2010. During years ended December 31, 2011 and 2010, we had no significant transfers into or out of Levels 1 and 2. To qualify as a transfer, the asset or liability must have existed in the previous reporting period and moved into a different level during the current period. |
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The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Estimated Fair Value Of Financial Instruments
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| Estimated Fair Value Of Financial Instruments |
We have determined fair value amounts using available market information and appropriate valuation methodologies. However, considerable judgment is required in interpreting market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that we could realize in a current market exchange. The use of different market assumptions and/or estimation methods may have a material effect on the estimated fair value amounts. The fair value of accounts receivable and accounts payable are not materially different from their carrying amounts because of the short term nature of these instruments or the stated rates approximating market rates. Unrealized gains and unrealized losses on derivative instruments are carried at fair value. The carrying and fair values of outstanding balances under our Credit Agreement are $497.0 million and $497.0 million as of December 31, 2011 and $398.0 million and $388.9 million, respectively as of December 31, 2010. The carrying value of the 3.25% Senior Notes is $250.0 million as of December 31, 2011 and 2010, which approximates fair value. We determine the fair value of our credit facility borrowings based upon the discounted present value of expected future cash flows, taking into account the difference between the contractual borrowing spread and the spread for similar credit facilities available in the marketplace. We determine the fair value of our fixed-rate debt based on quotes obtained from bond dealers. |
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Long-term debt was as follows:
Credit Agreement On November 10, 2011, we entered into a Credit Agreement providing for a $1.0 billion revolving credit facility that matures November 10, 2016. The Credit Agreement replaced our Amended and Restated Credit Agreement dated as of June 21, 2007 (the Prior Credit Agreement), which had a total borrowing capacity of $850.0 million and would have matured on June 21, 2012. The initial borrowing under the Credit Agreement was used to repay the Company's indebtedness under the Prior Credit Agreement. The revolving credit facility provided by the Credit Agreement will be used for ongoing working capital requirements and for other general partnership purposes including acquisitions. At December 31, 2011 and 2010, we had $1.1 million and $32.1 million, respectively, of letters of credit issued and outstanding under the Credit Agreement and the Prior Credit Agreement. As of December 31, 2011, the unused capacity under the revolving credit facility was $501.9 million, of which approximately $279.5 million was available for general working capital. We incurred $3.9 million of debt issuance costs associated with the Credit Agreement. These expenses are deferred as other long-term assets in the consolidated balance sheet and will be amortized over the term of the Credit Agreement. Our borrowing capacity is limited at December 31, 2011 by the Credit Agreement's financial covenant requirements. Except in the case of a default, amounts borrowed under our credit facility will not mature prior to the November 10, 2016 maturity date. Under the Credit Agreement, indebtedness under the revolving credit facility bears interest at either: (1) LIBOR, plus an applicable margin ranging from 0.85% to 1.65% depending on our credit rating; or (2) the higher of Wells Fargo Bank's prime rate plus an applicable margin ranging from 0% to 0.65% depending on our credit rating, the Federal Funds rate plus 0.50% or the LIBOR Market Index rate plus 1%. The revolving credit facility incurs an annual facility fee of 0.15% to 0.35% depending on our credit rating. This fee is paid on drawn and undrawn portions of the revolving credit facility. The Credit Agreement requires us to maintain a leverage ratio (the ratio of our consolidated indebtedness to our consolidated EBITDA, in each case as is defined by the Credit Agreement) of not more than 5.0 to 1.0, and on a temporary basis for not more than three consecutive quarters (including the quarter in which such acquisition is consummated) following the consummation of asset acquisitions in the midstream energy business of not more than 5.5 to 1.0. Debt Securities On September 30, 2010, we issued $250.0 million of 3.25% Senior Notes due October 1, 2015. We received proceeds of $247.7 million, which are net of underwriters' fees, related expenses and unamortized discounts of $1.5 million, $0.6 million and $0.2 million, respectively, which we used to repay funds borrowed under the revolver portion of the Prior Credit Agreement. Interest on the notes is paid semi-annually on April 1 and October 1 of each year, with the first payment made on April 1, 2011. The notes will mature on October 1, 2015, unless redeemed prior to maturity. The underwriters' fees and related expenses are deferred in other long-term assets in our consolidated balance sheets and will be amortized over the term of the notes. The notes are senior unsecured obligations, ranking equally in right of payment with other unsecured indebtedness, including indebtedness under our Credit Agreement. We are not required to make mandatory redemption or sinking fund payments with respect to these notes. The securities are redeemable at a premium at our option. The future maturities of long-term debt in the year indicated are as follows:
Other Agreements As of December 31, 2011, we had a contingent letter of credit for up to $10.0 million, on which we pay a fee of 0.50% per annum. This facility reduces the amount of cash we may be required to post as collateral. As of December 31, 2011, we had no letters of credit issued on this facility; any letters of credit issued on this facility will incur a fee of 1.75% per annum and will not reduce the available capacity under our credit facility. |
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The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| Risk Management And Hedging Activities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk Management And Hedging Activities |
Our day to day operations expose us to a variety of risks including but not limited to changes in the prices of commodities that we buy or sell, changes in interest rates, and the creditworthiness of each of our counterparties. We manage certain of these exposures with both physical and financial transactions. We have established a comprehensive risk management policy, or Risk Management Policy, and a risk management committee, or the Risk Management Committee, to monitor and manage market risks associated with commodity prices and counterparty credit. The Risk Management Committee is responsible for the overall management of credit risk and commodity price risk, including monitoring exposure limits. The following briefly describes each of the risks that we manage. Commodity Price Risk We are exposed to the impact of market fluctuations in the prices of natural gas, NGLs and condensate as a result of our gathering, processing, sales and storage activities. For gathering, processing and storage services, we may receive cash or commodities as payment for these services, depending on the contract type. We enter into derivative financial instruments to mitigate a portion of the risk of weakening natural gas, NGL and condensate prices associated with our gathering, processing and sales activities, thereby stabilizing our cash flows. We have mitigated a portion of our expected commodity price risk associated with our gathering, processing and sales activities through 2016 with commodity derivative instruments. Given the limited liquidity and tenor of the NGL derivatives market, we have primarily utilized crude oil swaps and costless collars to mitigate a portion of our commodity price exposure for NGLs. For the nearer tenor where there is greater liquidity in the NGL derivatives market, we have periodically also utilized NGL derivatives. Historically, prices of NGLs have been generally related to the price of crude oil, with some exceptions, notably in late 2008 to early 2009, when NGL pricing was at a greater discount to crude oil pricing. When the relationship of NGL prices to crude oil prices is at a discount to historical ranges, we experience additional exposure as a result of the relationship. When our crude oil swaps become short-term in nature, we have periodically converted certain crude oil derivatives to NGL derivatives by entering into offsetting crude oil swaps while adding NGL swaps. Our crude oil and NGL transactions are primarily accomplished through the use of forward contracts that effectively exchange our floating price risk for a fixed price. We also utilize crude oil costless collars that minimize our floating price risk by establishing a fixed price floor and a fixed price ceiling. However, the type of instrument that we use to mitigate a portion of our risk may vary depending upon our risk management objective. These transactions are not designated as hedging instruments for accounting purposes and the change in fair value is reflected within our consolidated statements of operations as a gain or a loss on commodity derivative activity. With respect to our Pelico system, we may enter into financial derivatives to lock in transportation margins across the system, or to lock in margins around our leased storage facility to maximize value. This objective may be achieved through the use of physical purchases or sales of gas that are accounted for under accrual accounting. While the physical purchase or sale of gas transactions are accounted for under accrual accounting and any inventory is stated at lower of cost or market, the swaps are not designated as hedging instruments for accounting purposes and any change in fair value of these instruments is reflected in the current period within our consolidated statements of operations.
Our Wholesale Propane Logistics segment is generally designed to establish stable margins by entering into supply arrangements that specify prices based on established floating price indices and by entering into sales agreements that provide for floating prices that are tied to our variable supply costs plus a margin. To the extent possible, we match the pricing of our supply portfolio to our sales portfolio in order to lock in value and reduce our overall commodity price risk. However, to the extent that we carry propane inventories or our sales and supply arrangements are not aligned, we are exposed to market variables and commodity price risk. We manage the commodity price risk of our supply portfolio and sales portfolio with both physical and financial transactions. While the majority of our sales and purchases in this segment are index-based, occasionally, we may enter into fixed price sales agreements in the event that a retail propane distributor desires to purchase propane from us on a fixed price basis. In such cases, we may manage this risk with derivatives that allow us to swap our fixed price risk to market index prices that are matched to our market index supply costs. In addition, we may on occasion use financial derivatives to manage the value of our propane inventories. These transactions are not designated as hedging instruments for accounting purposes and any change in fair value is reflected in the current period within our consolidated statements of operations as a gain or loss on commodity derivative activity. Our portfolio of commodity derivative activity is primarily accounted for using the mark-to-market method of accounting, whereby changes in fair value are recorded directly to the consolidated statements of operations; however, depending upon our risk profile and objectives, in certain limited cases, we may execute transactions that qualify for the hedge method of accounting. Commodity Cash Flow Hedges — Effective July 1, 2007, we elected to discontinue using the hedge method of accounting for derivatives that manage our commodity price risk. Prior to July 1, 2007, we used commodity swaps to mitigate a portion of the risk of market fluctuations in the price of NGLs, natural gas and condensate. Given our election to discontinue using the hedge method of accounting, the remaining net losses deferred in accumulated other comprehensive income, or AOCI, relative to cash flow hedges were reclassified to sales of natural gas, propane, NGLs and condensate, through December 2011, as the underlying transactions impacted earnings. On January 1, 2011, we acquired a 33.33% interest in Southeast Texas and account for our interest as an equity method investment. Southeast Texas commenced an expansion project to build an additional storage cavern. In order for storage facilities to remain operational, a minimum level of base gas must be maintained in each storage cavern. Upon completion of the expansion project, Southeast Texas will be required to purchase a significant amount of base gas to bring the storage cavern to operation. To mitigate the risk associated with this forecasted purchase of natural gas, Southeast Texas executed derivative financial instruments which have been designated as cash flow hedges. Any effective changes in fair value of these derivative instruments will be deferred in AOCI until the underlying purchase of inventory occurs. While the cash paid or received upon settlement of these hedges will economically offset the cash required to purchase the base gas, any deferred gain or loss at the time of the purchase will remain in AOCI until such time that the cavern is emptied and the base gas is sold. We recognize our proportionate share of the Southeast Texas base gas commodity derivative activity in AOCI, with corresponding adjustments to our investment in Southeast Texas. Interest Rate Risk We mitigate a portion of our interest rate risk with interest rate swaps and forward-starting interest rate swaps that reduce our exposure to market rate fluctuations by converting variable interest rates on our existing debt to fixed interest rates and locking in rates on our anticipated future fixed-rate debt, respectively. The interest rate swap agreements convert the interest rate associated with the indebtedness outstanding under our revolving credit facility to a fixed-rate obligation, thereby reducing the exposure to market rate fluctuations. The forward-starting interest rate swap agreements lock in the interest rate associated with our anticipated future fixed-rate debt, thereby reducing the exposure to market rate fluctuations prior to issuance.
At December 31, 2011, we had interest rate swap agreements totaling $450.0 million, of which we have designated $425.0 million as cash flow hedges and account for the remaining $25.0 million under the mark-to-market method of accounting. As we generally expect to have variable-rate debt levels equal to or exceeding our swap positions during their term, the entire $450.0 million of these arrangements mitigate our interest rate risk through June 2012, with $150.0 million extending from June 2012 through June 2014. Based on our current operations we believe our interest rate swap agreements mitigate our interest rate risk associated with our variable-rate debt. At December 31, 2011, we had forward-starting interest rate swap agreements totaling $195.0 million, which we have designated as cash flow hedges. As we anticipate entering into future fixed-rate debt at levels equal to or exceeding our forward-starting swap positions during their term, the entire $195.0 million of these arrangements mitigate a portion of our interest rate risk through the term of our anticipated debt into 2022. Based on our current operations we believe our forward-starting interest rate swap agreements mitigate a portion of our interest rate risk associated with our anticipated future fixed-rate debt. Effectiveness of our interest rate swap agreements designated as cash flow hedges is determined by matching the principal balance and terms with that of the specified obligation. The effective portions of changes in fair value are recognized in AOCI in the consolidated balance sheets and are reclassified into earnings as the hedged transactions impact earnings. The effect that these swaps have on our consolidated financial statements, as well as the effect that is expected over the upcoming 12 months is summarized in the charts below. However, due to the volatility of the interest rate markets, the corresponding value in AOCI is subject to change prior to its reclassification into earnings. Ineffective portions of changes in fair value are recognized in earnings. At December 31, 2011, $275.0 million of the interest rate swap agreements reprice prospectively approximately every 90 days and the remaining $175.0 million of the agreements reprice prospectively approximately every 30 days. Under the terms of the interest rate swap agreements, we pay fixed-rates ranging from 2.94% to 5.19%, and receive interest payments based on the three-month and one-month LIBOR. Under the terms of the forward-starting interest rate swap agreements, we will pay fixed-rates ranging from 2.15% to 2.598%, and receive interest payments approximating 10-year U.S. Treasury rates. The differences to be paid or received under the interest rate swap agreements are recognized as an adjustment to interest expense. Contingent Credit Features Each of the above risks is managed through the execution of individual contracts with a variety of counterparties. Certain of our derivative contracts may contain credit-risk related contingent provisions that may require us to take certain actions in certain circumstances. We have International Swap Dealers Association, or ISDA, contracts which are standardized master legal arrangements that establish key terms and conditions which govern certain derivative transactions. These ISDA contracts contain standard credit-risk related contingent provisions. Some of the provisions we are subject to are outlined below.
Our commodity derivative contracts that are not governed by ISDA contracts do not have any credit-risk related contingent features. Depending upon the movement of commodity prices and interest rates, each of our individual contracts with counterparties to our commodity derivative instruments or to our interest rate swap instruments are in either a net asset or net liability position. As of December 31, 2011, we had $50.9 million of individual commodity derivative contracts that contain credit-risk related contingent features that were in a net liability position, and have not posted any cash collateral relative to such positions. If a credit-risk related event were to occur and we were required to net settle our position with an individual counterparty, our ISDA contracts permit us to net all outstanding contracts with that counterparty, whether in a net asset or net liability position, as well as any cash collateral already posted. As of December 31, 2011 if a credit-risk related event were to occur we may be required to post additional collateral. Additionally, although our commodity derivative contracts that contain credit-risk related contingent features were in a net liability position as of December 31, 2011, if a credit-risk related event were to occur, the net liability position would be partially offset by contracts in a net asset position reducing our net liability to $46.0 million. As of December 31, 2011, we had $21.1 million of individual interest rate swap instruments that were in a net liability position and were subject to credit-risk related contingent features. If we were to have a default of any of our covenants to our Credit Agreement, that occurs and is continuing, the counterparties to our swap instruments have the right to request that we net settle the instrument in the form of cash. Collateral As of December 31, 2011, we had a contingent letter of credit facility for up to $10.0 million, on which we have no letters of credit issued. DCP Midstream, LLC had issued and outstanding parental guarantees totaling $70.0 million in favor of certain counterparties to our commodity derivative instruments. This contingent letter of credit facility and parental guarantees reduce the amount of cash we may be required to post as collateral. As of December 31, 2011, we had no cash collateral posted with counterparties to our commodity derivative instruments. Summarized Derivative Information The following summarizes the balance within AOCI relative to our commodity and interest rate cash flow hedges:
The fair value of our derivative instruments that are designated as hedging instruments, those that are marked to market each period, as well as the location of each within our consolidated balance sheets, by major category, is summarized as follows:
The following table summarizes the impact on our consolidated balance sheet and consolidated statements of operations of our derivative instruments that are accounted for using the cash flow hedge method of accounting.
Changes in value of derivative instruments, for which the hedge method of accounting has not been elected from one period to the next, are recorded in the consolidated statements of operations. The following summarizes these amounts and the location within the consolidated statements of operations that such amounts are reflected:
We do not have any derivative financial instruments that qualify as a hedge of a net investment.
The following tables represent, by commodity type, our net long or short positions that are expected to partially or entirely settle in each respective year. To the extent that we have long dated derivative positions that span multiple calendar years, the contract will appear in more than one line item in the tables below.
We periodically enter into interest rate swap agreements to mitigate a portion of our floating rate interest exposure. As of December 31, 2011, we have swaps with notional values between $25.0 million and $80.0 million, which, in aggregate, exchange $450.0 million of our floating rate obligation to a fixed-rate obligation through June 2012, with $150.0 million extending from June 2012 through June 2014. |
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The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Partnership Equity And Distributions
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Dec. 31, 2011
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| Partnership Equity And Distributions |
General — Our partnership agreement requires that, within 45 days after the end of each quarter, we distribute all of our Available Cash, as defined below, to unitholders of record on the applicable record date, as determined by our general partner. On August 17, 2011, we entered into an equity distribution agreement with Citigroup Global Markets Inc., or Citi. The agreement provides for the offer and sale from time to time through Citi, our sales agent, common units having an aggregate offering amount of up to $150.0 million. During the year ended December 31, 2011, we issued 761,285 of our common units pursuant to this equity distribution agreement. We received proceeds of $30.2 million from the issuance of these common units, net of commissions and offering costs of $1.2 million, which were used to finance growth opportunities.
In March 2011, we issued 3,596,636 common limited partner units at $40.55 per unit. We received proceeds of $139.7 million, net of offering costs. In February 2011, we issued 8,399 common limited partner units, from our LTIP to employees as compensation for their service during 2010, 2009 and 2008. In November 2010, we issued 2,875,000 common limited partner units at $34.96 per unit. We received proceeds of $96.2 million, net of offering costs. In August 2010, we issued 2,990,000 common limited partner units at $32.57 per unit. We received proceeds of $93.1 million, net of offering costs. On May 26, 2010, we filed a universal shelf registration statement on Form S-3 with the SEC with a maximum aggregate offering amount of $1.5 billion, to replace an existing shelf registration statement. The universal shelf registration statement will allow us to issue additional partnership units and debt securities. In November 2009, we issued 2,500,000 common limited partner units at $25.40 per unit, and in December 2009 we issued an additional 375,000 common limited partner units to the underwriters upon exercise of their overallotment option. We received proceeds of $69.5 million, net of offering costs. In April 2009, we issued 3,500,000 Class D units valued at $49.7 million. The Class D units were issued to DCP Midstream, LLC in consideration for an additional 25.1% interest in East Texas and a fixed price natural gas liquids derivative by NGL component for the period April 2009 to March 2010. The Class D units converted into our common units on a one-for-one basis on August 17, 2009. Definition of Available Cash — Available Cash, for any quarter, consists of all cash and cash equivalents on hand at the end of that quarter:
General Partner Interest and Incentive Distribution Rights — The general partner is entitled to a percentage of all quarterly distributions equal to its general partner interest of approximately 1% and limited partner interest of 1% as of December 31, 2011. The general partner has the right, but not the obligation, to contribute a proportionate amount of capital to us to maintain its current general partner interest. The incentive distribution rights held by the general partner entitle it to receive an increasing share of Available Cash when pre-defined distribution targets are achieved. Currently, our distribution to our general partner related to its incentive distribution rights is at the highest level. The general partner's incentive distribution rights were not reduced as a result of our common limited partner unit issuances, and will not be reduced if we issue additional units in the future and the general partner does not contribute a proportionate amount of capital to us to maintain its current general partner interest. Please read the Distributions of Available Cash after the Subordination Period sections below for more details about the distribution targets and their impact on the general partner's incentive distribution rights. Class D Units — All of the Class D units were held by DCP Midstream, LLC and converted into our common units on a one for one basis on August 17, 2009. The holders of the Class D units received the second quarter distribution paid on August 14, 2009.
Subordinated Units — All of our subordinated units were held by DCP Midstream, LLC and were converted to common limited partner units by February 2009. The subordination period had an early termination provision that permitted 50% of the subordinated units, or 3,571,428 units, to convert into common units on a one-to-one basis in February 2008 and permitted the other 50% of the subordinated units, or 3,571,429 units, to convert into common units on a one-to-one basis in February 2009, following the satisfactory completion of the tests for ending the subordination period contained in our partnership agreement. The board of directors of the General Partner certified that all conditions for early conversion were satisfied. Our partnership agreement provides that, during the subordination period, the common units had the right to receive distributions of Available Cash each quarter in an amount equal to $0.35 per common unit, or the Minimum Quarterly Distribution, plus any arrearages in the payment of the Minimum Quarterly Distribution on the common units from prior quarters, before any distributions of Available Cash may be made on the subordinated units. These units are deemed "subordinated" because for a period of time, referred to as the subordination period, the subordinated units were not entitled to receive any distributions until the common units received the Minimum Quarterly Distribution plus any arrearages from prior quarters. Furthermore, no arrearages could be paid on the subordinated units. The practical effect of the subordinated units is to increase the likelihood that during the subordination period there will be Available Cash to be distributed on the common units. Distributions of Available Cash after the Subordination Period — Our partnership agreement, after adjustment for the general partner's relative ownership level, requires that we make distributions of Available Cash from operating surplus for any quarter after the subordination period, which ended in February 2009, in the following manner:
The following table presents our cash distributions paid in 2011, 2010 and 2009:
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The entire disclosure for the formation, structure, control and ownership of the partnership. Disclosures related to accounts comprising partners' capital. Includes balances of general partners' capital account, limited partners' capital account, preferred partners' capital account and total partners' capital account and units outstanding; accumulated other comprehensive income; amount and nature of changes to amount of partner's capital and units outstanding by class, rights and privileges for each class of units; distribution policies and distributions paid by unit class; impact of and correction of an error in previously issued financial statements; limitations of partners' liability; redemption, conversion and distribution policies; and deferred compensation related to the issuance of units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Equity-Based Compensation
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Dec. 31, 2011
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| Equity-Based Compensation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity-Based Compensation |
Total compensation cost for equity-based arrangements was as follows:
On November 28, 2005, the board of directors of our General Partner adopted a long-term incentive plan, or LTIP, for employees, consultants and directors of our General Partner and its affiliates who perform services for us. The LTIP provides for the grant of limited partner units, or LPUs, phantom units, unit options and substitute awards, and, with respect to unit options and phantom units, the grant of dividend equivalent rights, or DERs. Subject to adjustment for certain events, an aggregate of 850,000 LPUs may be delivered pursuant to awards under the LTIP. Awards that are canceled or forfeited, or are withheld to satisfy the General Partner's tax withholding obligations, are available for delivery pursuant to other awards. The LTIP is administered by the compensation committee of the General Partner's board of directors. All awards are subject to cliff vesting, with the exception of the Phantom Units issued to directors in conjunction with our initial public offering, which are subject to graded vesting provisions. Prior to February 18, 2011, substantially all equity-based awards were accounted for as liability awards. Effective February 18, 2011, the Modification Date, we have the intent and ability to settle certain awards within our control in units and therefore modified the accounting for these awards. We now classify them as equity awards based on their re-measured fair value. The fair value was determined based on the closing price of our common units on the Modification Date. Such modification resulted in a reclassification of $1.9 million from share-based compensation liability to additional paid-in capital on the Modification Date. Compensation expense on unvested equity awards as of the Modification Date will be recognized ratably over each remaining vesting period. We will continue to account for other awards, which are subject to settlement in cash, as liability awards. Compensation expense on these awards is recognized ratably over each vesting period, and will be re-measured each reporting period for all awards outstanding until the units are vested. The fair value of all liability awards is determined based on the closing price of our common units at each measurement date. The reclassification of the affected awards does not impact our accounting for dividend equivalent rights as these instruments will continue to be settled in cash and therefore retain their share-based compensation liability classification. Performance Units — We have awarded phantom LPUs, or Performance Units, pursuant to the LTIP to certain employees. Performance Units generally vest in their entirety at the end of a three year performance period. The number of Performance Units that will ultimately vest range, in value from 0% to 200% of the outstanding Performance Units, depending on the achievement of specified performance targets over three year performance periods. The final performance payout is determined by the compensation committee of the board of directors of our General Partner. The DERs are paid in cash at the end of the performance period. Of the remaining Performance Units outstanding at December 31, 2011, 11,641 units are expected to vest on December 31, 2012 and 7,406 units are expected to vest on December 31, 2013.
At December 31, 2011, there was approximately $0.4 million of unrecognized compensation expense related to the Performance Units that is expected to be recognized over a weighted-average period of 2 years. The following table presents information related to the Performance Units:
The estimate of Performance Units that are expected to vest is based on highly subjective assumptions that could potentially change over time, including the expected forfeiture rate and achievement of performance targets. Therefore, the amount of unrecognized compensation expense noted above does not necessarily represent the value that will ultimately be realized in our consolidated statements of operations. The following table presents the fair value of units vested and the unit-based liabilities paid for unit based awards related to Performance Units, including the related DERs:
Phantom Units — In conjunction with our initial public offering, in January 2006 our General Partner's board of directors awarded phantom LPUs, or Phantom Units, to key employees, and to directors who are not officers or employees of affiliates of the General Partner. In 2011, we granted 4,000 Phantom Units, pursuant to the LTIP, to directors who are not officers or employees of affiliates of the General Partner as part of their annual director fees for 2011. All of these units vested in 2011and were settled in units. In 2010, we granted 5,200 Phantom Units, pursuant to the LTIP, to directors who are not officers or employees of affiliates of the General Partner as part of their annual director fees for 2010. All of these units vested in 2010 and were settled in units.
In 2009, we granted 16,000 Phantom Units, pursuant to the LTIP, to directors who are not officers or employees of affiliates of the General Partner as part of their annual director fees for 2009. All of these units vested during 2009 and were settled in cash. The DERs are paid in cash quarterly in arrears. The following table presents information related to the Phantom Units:
The following table presents the fair value of units vested and the unit-based liabilities paid for unit based awards related to Phantom Units:
Restricted Phantom Units — Our General Partner's board of directors awarded restricted phantom LPUs, or RPUs, to key employees under the LTIP. Of the remaining RPUs outstanding at December 31, 2011, 6,125 units are expected to vest on December 31, 2012 and 8,215 units are expected to vest on December 31, 2013. The DERs are paid in cash quarterly in arrears. At December 31, 2011, there was approximately $0.2 million of unrecognized compensation expense related to the RPUs that is expected to be recognized over a weighted-average period of 1 year. The following table presents information related to the RPUs:
The following table presents the fair value of units vested and the unit-based liabilities paid for unit based awards related to Restricted Phantom Units:
The estimate of RPUs that are expected to vest is based on highly subjective assumptions that could potentially change over time, including the expected forfeiture rate, which was estimated at 22% for units granted in 2011, 30% for units granted in 2010 and 21% for units granted in 2009. Therefore, the amount of unrecognized compensation expense noted above does not necessarily represent the value that will ultimately be realized in our consolidated statements of operations. |
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- Definition
The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Taxes
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Dec. 31, 2011
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| Income Taxes [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes |
We are structured as a master limited partnership, which is a pass-through entity for federal income tax purposes. Accordingly, we had no federal deferred tax balance as of December 31, 2011 and no federal income tax expense for the year ended December 31, 2010. On December 30, 2010, we acquired all of the interests in Marysville Hydrocarbons Holdings, LLC, an entity that owned a taxable C-Corporation consolidated return group. We estimated $35.0 million of deferred tax liabilities resulting from built-in tax gains recognized in the transaction and recorded this in our preliminary purchase price allocation as of December 31, 2010. On January 4, 2011, we merged two wholly-owned subsidiaries of Marysville Hydrocarbons Holding, LLC and converted the combined entity's organizational structure from a corporation to a limited liability company. This conversion to a limited liability company triggered the deferred tax liabilities resulting from built-in tax gains to become currently payable. Accordingly, the estimated $35.0 million of deferred tax liabilities at December 31, 2010 became currently payable on January 4, 2011. During 2011, we made federal and state tax payments of $29.3 million and $0.3 million, respectively, related to our estimated $35.0 million tax liability that resulted from our acquisition of Marysville. The remaining $5.4 million estimated tax payable has been reclassified to goodwill in our final accounting for the Marysville business combination. The State of Texas imposes a margin tax that is assessed at 1% of taxable margin apportioned to Texas. During 2010 and 2009, we acquired properties in Michigan. Michigan imposes a business tax of 0.8% on gross receipts, and 4.95% of Michigan taxable income. The sum of the gross receipts and income tax is subject to a tax surcharge of 21.99%. Michigan provides tax credits that may reduce our final tax liability. Income tax expense consists of the following:
We had net long-term deferred tax liabilities of $1.8 million and $1.6 million as of December 31, 2011 and 2010, respectively, included in other long-term liabilities on the consolidated balance sheets. These state deferred tax liabilities relate to our East Texas operations, and are primarily associated with depreciation related to property plant and equipment. Our effective tax rate differs from statutory rates, primarily due to being structured as a limited partnership, which is a pass-through entity for United States income tax purposes, while being treated as a taxable entity in certain states. |
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- Definition
The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Net Income Or Loss Per Limited Partner Unit
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Dec. 31, 2011
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| Net Income Or Loss Per Limited Partner Unit [Abstract] | |||
| Net Income Or Loss Per Limited Partner Unit |
Our net income or loss is allocated to the general partner and the limited partners, including the holders of the subordinated units, through the date of subordinated conversion, in accordance with their respective ownership percentages, after allocating Available Cash generated during the period in accordance with our partnership agreement. Securities that meet the definition of a participating security are required to be considered for inclusion in the computation of basic earnings per unit using the two-class method. Under the two-class method, earnings per unit is calculated as if all of the earnings for the period were distributed under the terms of the partnership agreement, regardless of whether the general partner has discretion over the amount of distributions to be made in any particular period, whether those earnings would actually be distributed during a particular period from an economic or practical perspective, or whether the general partner has other legal or contractual limitations on its ability to pay distributions that would prevent it from distributing all of the earnings for a particular period. These required disclosures do not impact our overall net income or loss or other financial results; however, in periods in which aggregate net income exceeds our Available Cash it will have the impact of reducing net income per LPU. Basic and diluted net income or loss per LPU is calculated by dividing limited partners' interest in net income or loss, by the weighted-average number of outstanding LPUs during the period. Diluted net income per limited partner unit is computed based on the weighted average number of units plus the effect of dilutive potential units outstanding during the period using the two-class method. Dilutive potential units include outstanding performance units, phantom units and restricted units. The dilutive effect of unit-based awards was 64,286 equivalent units during the year ended December 31, 2011. There were no dilutive unit-based awards during the year ended December 31, 2010. |
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The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments And Contingent Liabilities
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Dec. 31, 2011
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| Commitments And Contingent Liabilities |
Litigation Prospect — During the fourth quarter of 2011, we received a claim for arbitration (the "Claim") filed with the American Arbitration Association by Prospect Street Energy, LLC and Prospect Street Ventures I, LLC (together, the "Claimants") against EE Group, LLC ("EE Group") and a number of other parties that previously owned, directly or indirectly, our Marysville NGL storage facility (collectively, the "Respondents"). EE Group is our indirect subsidiary which we acquired in connection with our acquisition of Marysville Hydrocarbons Holdings, LLC ("MHH") on December 30, 2010 (the "Acquisition"). The Claim involves actions taken and time periods prior to our ownership of EE Group and MHH, and includes several causes of action including claims of civil conspiracy, breach of fiduciary duty and fraud. We acquired a 90% interest in MHH from Dart Energy Corporation ("Dart"), a 5% interest in MHH from Prospect Street Energy, LLC and a 100% interest in EE Group, which owned the remaining 5% interest in MHH. The Claim seeks, from the Respondents collectively, alleged actual, punitive and treble damages and disgorgement of profits, as well as fees and costs. The purchase agreements for the Acquisition contain indemnification and other provisions that may provide some protection to us for any breach of the representations, warranties and covenants made by the sellers in the Acquisition. At this point, we cannot predict whether we will have any liability for the Claim. This proceeding is subject to the uncertainties inherent in any litigation, and the ultimate outcome of this matter may not be known for an extended period of time. We intend to vigorously defend this matter. Other — We are not a party to any other significant legal proceedings, but are a party to various administrative and regulatory proceedings and commercial disputes that have arisen in the ordinary course of our business. Management currently believes that the ultimate resolution of the foregoing matters, taken as a whole, and after consideration of amounts accrued, insurance coverage or other indemnification arrangements, will not have a material adverse effect on our consolidated results of operations, financial position, or cash flows. Insurance — We renewed our insurance policies in May, June and July 2011 for the 2011-2012 insurance year. We contract with third party and affiliate insurers for: (1) automobile liability insurance for all owned, non-owned and hired vehicles; (2) general liability insurance; (3) excess liability insurance above the established primary limits for general liability and automobile liability insurance; and (4) property insurance, which covers replacement value of real and personal property and includes business interruption/extra expense. These renewals have not resulted in any material change to the premiums we are contracted to pay in the 2011-2012 insurance year compared with the 2010-2011 insurance year. We are jointly insured with DCP Midstream, LLC for directors and officers insurance covering our directors and officers for acts related to our business activities. All coverage is subject to certain limits and deductibles, the terms and conditions of which are common for companies that are of similar size to us and with similar types of operations. Our insurance on Discovery for the 2011-2012 insurance year includes general and excess liability, onshore property damage, including named windstorm and business interruption, and offshore non-wind property and business interruption insurance. The availability of offshore named windstorm property and business interruption insurance has been significantly reduced over the past few years as a result of higher industry-wide damage claims. Additionally, the named windstorm property and business interruption insurance that is available comes at uneconomic premium levels, higher deductibles and lower coverage limits. As such, Discovery has elected to not purchase offshore named windstorm property and business interruption insurance coverage for the 2011-2012 insurance year. Environmental — The operation of pipelines, plants and other facilities for gathering, transporting, processing, treating, or storing natural gas, NGLs and other products is subject to stringent and complex laws and regulations pertaining to health, safety and the environment. As an owner or operator of these facilities, we must comply with United States laws and regulations at the federal, state and local levels that relate to air and water quality, hazardous and solid waste management and disposal, and other environmental matters. The cost of planning, designing, constructing and operating pipelines, plants, and other facilities must incorporate compliance with environmental laws and regulations and safety standards. Failure to comply with these laws and regulations may trigger a variety of administrative, civil and potentially criminal enforcement measures, including citizen suits, which can include the assessment of monetary penalties, the imposition of remedial requirements, and the issuance of injunctions or restrictions on operation. Management believes that, based on currently known information, compliance with these laws and regulations will not have a material adverse effect on our consolidated results of operations, financial position or cash flows During the first quarter of 2011, we discovered excess emissions at our East Texas gas plant. We met with the Texas Commission on Environmental Quality, or TCEQ, in April 2011 to discuss this matter and included these issues in Title V reports we submitted to the State. In August 2011, the TCEQ conducted a standard inspection at the East Texas gas plant to evaluate compliance with applicable air quality requirements. On August 31, 2011, the TCEQ issued us a Notice of Violation and a Notice of Enforcement citing a number of alleged violations of terms and requirements of the facility air permit. We responded to the Notice of Violation on September 28, 2011, including the implemented measures to ensure the facility is in compliance with the relevant air permit terms and conditions. We responded to the Notice of Enforcement on October 14, 2011, including a description of the measures that have been implemented, and will be implemented at the facility to ensure compliance with the relevant air permit terms and conditions. In December we received a proposed penalty assessment for this matter and we believe that we will likely receive a penalty of up to $0.7 million for this matter. We do not believe the ultimate resolution of this matter will have a material adverse effect on our consolidated results of operations, financial position or cash flows. Indemnification — DCP Midstream, LLC has indemnified us for certain potential environmental claims, losses and expenses associated with the operation of the assets of certain of our predecessors. Other Commitments and Contingencies — We utilize assets under operating leases in several areas of operation. Consolidated rental expense, including leases with no continuing commitment, totaled $13.1 million, $12.8 million and $12.1 million for the years ended December 31, 2011, 2010 and 2009, respectively. Rental expense for leases with escalation clauses is recognized on a straight line basis over the initial lease term. Minimum rental payments under our various operating leases in the year indicated are as follows at December 31, 2011:
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- Definition
The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Business Segments
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Dec. 31, 2011
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| Business Segments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Segments |
Our operations are located in the United States and are organized into three reporting segments: (1) Natural Gas Services; (2) NGL Logistics; and (3) Wholesale Propane Logistics. Natural Gas Services — Our Natural Gas Services segment provides services that include gathering, compressing, treating, processing, transporting and storing natural gas. The segment consists of our Northern Louisiana system, our Southern Oklahoma system, our Wyoming system, our Michigan system, our 33.33% interest in the Southeast Texas system, our 50.1% interest in the East Texas system, our 75% interest in the Colorado system, and our 40% limited liability company interest in Discovery. NGL Logistics — Our NGL Logistics segment provides services that include transportation, storage and fractionation of NGLs. The segment consists of the Seabreeze and Wilbreeze intrastate NGL pipelines, the Wattenberg and Black Lake interstate NGL pipelines, the NGL storage facility in Michigan and the DJ Basin NGL Fractionators in Colorado. Wholesale Propane Logistics — Our Wholesale Propane Logistics segment provides services that include the receipt of propane by pipeline, rail or ship to our terminals that deliver the product to retail distributors. The segment consists of six owned rail terminals, one owned marine import terminal, one leased marine terminal, one pipeline terminal and access to several open-access pipeline terminals. These segments are monitored separately by management for performance against our internal forecast and are consistent with internal financial reporting. These segments have been identified based on the differing products and services, regulatory environment and the expertise required for these operations. Gross margin is a performance measure utilized by management to monitor the business of each segment.
The following tables set forth our segment information: Year Ended December 31, 2011:
Year Ended December 31, 2010:
Year Ended December 31, 2009:
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- Definition
The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Supplemental Cash Flow Information
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Dec. 31, 2011
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| Supplemental Cash Flow Information [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Supplemental Cash Flow Information |
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The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Quarterly Financial Data
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Dec. 31, 2011
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| Quarterly Financial Data [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quarterly Financial Data |
Our consolidated results of operations by quarter for the years ended December 31, 2011 and 2010 were as follows (millions, except per unit amounts):
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- Definition
The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Supplementary Information - Condensed Consolidating Financial Information
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| Supplementary Information - Condensed Consolidating Financial Information [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Supplementary Information - Condensed Consolidating Financial Information |
The following condensed consolidating financial information presents the results of operations, financial position and cash flows of DCP Midstream Partners, LP, or parent guarantor, DCP Midstream Operating LP, or subsidiary issuer, which is a 100% owned subsidiary, and non-guarantor subsidiaries, as well as the consolidating adjustments necessary to present DCP Midstream Partners, LP's results on a consolidated basis. In conjunction with the universal shelf registration statement on Form S-3 filed with the SEC on May 26, 2010, the parent guarantor has agreed to fully and unconditionally guarantee securities of the subsidiary issuer. For the purpose of the following financial information, investments in subsidiaries are reflected in accordance with the equity method of accounting. The financial information may not necessarily be indicative of results of operations, cash flows, or financial position had the subsidiaries operated as independent entities.
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Condensed Financial Statements Disclosure [Text Block] No definition available.
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Valuation And Qualifying Accounts And Reserves
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Dec. 31, 2011
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| Valuation And Qualifying Accounts And Reserves [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Valuation And Qualifying Accounts And Reserves |
Our valuation and qualifying accounts and reserves for the years ended December 31, 2011, 2010 and 2009 are as follows:
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- Definition
The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Subsequent Events
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Dec. 31, 2011
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| Subsequent Events [Abstract] | |||
| Subsequent Events |
On January 3, 2012, we entered into a 2-year Term Loan Agreement with Wells Fargo Bank, National Association, SunTrust Bank and The Bank of Tokyo-Mitsubishi UFJ, Ltd. as lenders. We borrowed $135.0 million under the term loan on January 3, 2012, which was used to fund the acquisition of the remaining 49.9% interest in East Texas. On January 3, 2012, we completed the acquisition of the remaining 49.9% interest in East Texas from DCP Midstream, LLC for aggregate consideration of $165.0 million, subject to certain working capital and other customary purchase price adjustments. The transaction was financed at closing through the execution of a term loan and the issuance of 727,520 common units. Prior to the contribution of the additional interest in East Texas, we owned a 50.1% interest which we accounted for as a consolidated subsidiary. The contribution of the remaining 49.9% interest in East Texas represents a transaction between entities under common control, but does not represent a change in reporting entity. Accordingly, we will include the results of the remaining 49.9% interest in East Texas prospectively from the date of contribution. On January 18, 2012, we, along with Williams Partners L.P., announced a planned expansion of the Discovery natural gas gathering pipeline system in the deepwater Gulf of Mexico. Discovery intends to construct the Keathley Canyon Connector, a 20-inch diameter, 215-mile subsea natural gas gathering pipeline for production from the Keathley Canyon, Walker Ridge and Green Canyon areas in the central deepwater Gulf of Mexico. The Keathley Canyon Connector will originate in the southeast portion of the Keathley Canyon area and terminate into Discovery's 30-inch diameter mainline near South Timbalier Block 283. The pipeline will be capable of gathering more than 400 MMcf/d of natural gas. Discovery has signed long-term fee-based agreements with the Lucius and Hadrian South owners for natural gas gathering and processing for production from those fields. Construction on the project is expected to begin in 2013, with a mid-2014 expected in-service date. Total capital expenditures for the Keathley Canyon Connector are estimated to be approximately $600 million. On January 26, 2012, the board of directors of the general partner declared a quarterly distribution of $0.65 per unit, payable on February 14, 2012 to unitholders of record on February 7, 2012. On February 27, 2012, we entered into agreements with DCP Midstream, LLC, to acquire the remaining 66.67% interest in Southeast Texas, and natural gas commodity derivatives associated with the storage business, for aggregate consideration of $240.0 million, subject to certain working capital and other customary purchase price adjustments. DCP Midstream, LLC also provided fixed price NGL commodity derivatives for the three year period subsequent to closing the newly acquired interest. Prior to the acquisition of the additional interest in Southeast Texas, we owned a 33.33% interest which we account for as an unconsolidated affiliate using the equity method. The acquisition of the remaining 66.67% interest in Southeast Texas represents a transaction between entities under common control and a change in reporting entity. Accordingly, we will include the results of the remaining 66.67% interest in Southeast Texas retrospectively similar to the pooling method. This acquisition is expected to close by the second quarter of 2012. |
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- Definition
The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. No definition available.
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Description Of Business And Basis Of Presentation (Policy)
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12 Months Ended |
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Dec. 31, 2011
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| Description Of Business And Basis Of Presentation [Abstract] | |
| Significant Accounting Policy | The consolidated financial statements include the accounts of the Partnership and all majority-owned subsidiaries where we have the ability to exercise control and undivided interests in jointly owned assets. Investments in greater than 20% owned affiliates that are not variable interest entities and where we do not have the ability to exercise control, and investments in less than 20% owned affiliates where we have the ability to exercise significant influence, are accounted for using the equity method. All intercompany balances and transactions have been eliminated. |
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- Definition
Disclosure of accounting policy for subsidiaries or other investments that are consolidated, including the accounting treatment for intercompany accounts or transactions and any noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary Of Significant Accounting Policies (Policy)
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Dec. 31, 2011
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| Summary Of Significant Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Use Of Estimates | Use of Estimates — Conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes. Although these estimates are based on management's best available knowledge of current and expected future events, actual results could differ from those estimates. |
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| Cash And Cash Equivalents | Cash and Cash Equivalents — We consider investments in highly liquid financial instruments purchased with an original stated maturity of 90 days or less to be cash equivalents. |
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| Short-Term Investments | Short-Term Investments — We may invest available cash balances in various financial instruments, such as commercial paper and money market instruments. These instruments provide for a high degree of liquidity through features which allow for the redemption of the investment at its face amount plus earned income. As we generally intend to sell these instruments within one year or less from the balance sheet date, and as they are available for use in current operations, they are classified as current assets, unless otherwise restricted. We classify all short-term investments as available-for-sale as we do not intend to hold them to maturity, nor are they bought or sold with the objective of generating profit on short-term differences in prices. Short-term investments are recorded at fair value, with changes in fair value recorded as unrealized gains and losses in accumulated other comprehensive income (loss), or AOCI. The cost, including accrued interest on investments, approximates fair value, due to the short-term, highly liquid nature of the securities held by us; interest rates are re-set on a daily, weekly or monthly basis. |
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| Inventories | Inventories — Inventories, which consist primarily of NGLs and natural gas, are recorded at the lower of weighted-average cost or market value. Transportation costs are included in inventory. |
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| Property, Plant And Equipment | Property, Plant and Equipment — Property, plant and equipment are recorded at historical cost. The cost of maintenance and repairs, which are not significant improvements, are expensed when incurred. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. |
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| Goodwill And Intangible Assets | Goodwill and Intangible Assets — Goodwill is the cost of an acquisition less the fair value of the net assets of the acquired business. We perform an annual impairment test of goodwill in the third quarter, and update the test during interim periods when we believe events or changes in circumstances indicate that we may not be able to recover the carrying value of a reporting unit. We primarily use a discounted cash flow analysis to perform the assessment. Key assumptions in the analysis include the use of an appropriate discount rate, estimated future cash flows and an estimate of operating and general and administrative costs. In estimating cash flows, we incorporate current market information, as well as historical and other factors, into our forecasted commodity prices. For certain reporting units, we may elect to first assess qualitative factors to determine whether it is more likely than not that the fair value of our reporting units is less than the carrying value. Intangible assets consist primarily of customer contracts, including commodity purchase, transportation and processing contracts and related relationships. These intangible assets are amortized on a straight-line basis over the period of expected future benefit. Intangible assets are removed from the gross carrying amount and the total of accumulated amortization in the period in which they become fully amortized. |
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| Long-Lived Assets | Long-Lived Assets — We periodically evaluate whether the carrying value of long-lived assets has been impaired when circumstances indicate the carrying value of those assets may not be recoverable. This evaluation is based on undiscounted cash flow projections. The carrying amount is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. We consider various factors when determining if these assets should be evaluated for impairment, including but not limited to:
If the carrying value is not recoverable, the impairment loss is measured as the excess of the asset's carrying value over its fair value. We assess the fair value of long-lived assets using commonly accepted techniques, and may use more than one method, including, but not limited to, recent third party comparable sales and discounted cash flow models. Significant changes in market conditions resulting from events such as the condition of an asset or a change in management's intent to utilize the asset would generally require management to reassess the cash flows related to the long-lived assets. |
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| Asset Retirement Obligations | Asset Retirement Obligations — Our asset retirement obligations relate primarily to the retirement of various gathering pipelines and processing facilities, obligations related to right-of-way easement agreements, and contractual leases for land use. We adjust our asset retirement obligation each quarter for any liabilities incurred or settled during the period, accretion expense and any revisions made to the estimated cash flows. Asset retirement obligations associated with tangible long-lived assets are recorded at fair value in the period in which they are incurred, if a reasonable estimate of fair value can be made, and added to the carrying amount of the associated asset. This additional carrying amount is then depreciated over the life of the asset. The liability is determined using a risk free interest rate, and increases due to the passage of time based on the time value of money until the obligation is settled. |
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| Investments In Unconsolidated Affiliates | Investments in Unconsolidated Affiliates — We use the equity method to account for investments in greater than 20% owned affiliates that are not variable interest entities and where we do not have the ability to exercise control, and investments in less than 20% owned affiliates where we have the ability to exercise significant influence. We evaluate our investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying value of such investments may have experienced a decline in value. When there is evidence of loss in value, we compare the estimated fair value of the investment to the carrying value of the investment to determine whether impairment has occurred. We assess the fair value of our investments in unconsolidated affiliates using commonly accepted techniques, and may use more than one method, including, but not limited to, recent third party comparable sales and discounted cash flow models. If the estimated fair value is considered to be permanently less than the carrying value, the excess of the carrying value over the estimated fair value is recognized as an impairment loss. |
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| Unamortized Debt Expense |
Unamortized Debt Expense — Expenses incurred with the issuance of long-term debt are amortized over the term of the debt using the effective interest method. These expenses are recorded on the consolidated balance sheet as other long-term assets.
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| Noncontrolling Interest | Noncontrolling Interest — Noncontrolling interest represents any third party or affiliate interest in non-wholly-owned entities that we consolidate. For financial reporting purposes, the assets and liabilities of these entities are consolidated with those of our own, with any third party or affiliate interest in our consolidated balance sheet amounts shown as noncontrolling interest in equity. Distributions to and contributions from noncontrolling interests represent cash payments to and cash contributions from, respectively, such third party and affiliate investors. |
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| Accounting For Risk Management Activities And Financial Instruments | Accounting for Risk Management Activities and Financial Instruments — Non-trading energy commodity derivatives are designated as either a hedge of a forecasted transaction or future cash flow (cash flow hedge), a hedge of a recognized asset, liability or firm commitment (fair value hedge), or normal purchases or normal sales. The remaining non-trading derivatives, which are related to asset-based activities for which the normal purchases or normal sale exception is not elected, are recorded at fair value in the consolidated balance sheets as unrealized gains or unrealized losses in derivative instruments, with changes in the fair value recognized in the consolidated statements of operations. For each derivative, the accounting method and presentation of gains and losses or revenue and expense in the consolidated statements of operations are as follows:
Cash Flow and Fair Value Hedges — For derivatives designated as a cash flow hedge or a fair value hedge, we maintain formal documentation of the hedge. In addition, we formally assess both at the inception of the hedging relationship and on an ongoing basis, whether the hedge contract is highly effective in offsetting changes in cash flows or fair values of hedged items. All components of each derivative gain or loss are included in the assessment of hedge effectiveness, unless otherwise noted. The fair value of a derivative designated as a cash flow hedge is recorded in the consolidated balance sheets as unrealized gains or unrealized losses on derivative instruments. The effective portion of the change in fair value of a derivative designated as a cash flow hedge is recorded in partners' equity in accumulated other comprehensive income, or AOCI, and the ineffective portion is recorded in the consolidated statements of operations. During the period in which the hedged transaction impacts earnings, amounts in AOCI associated with the hedged transaction are reclassified to the consolidated statements of operations in the same accounts as the item being hedged. Hedge accounting is discontinued prospectively when it is determined that the derivative no longer qualifies as an effective hedge, or when it is probable that the hedged transaction will not occur. When hedge accounting is discontinued because the derivative no longer qualifies as an effective hedge, the derivative is subject to the mark-to-market accounting method prospectively. The derivative continues to be carried on the consolidated balance sheets at its fair value; however, subsequent changes in its fair value are recognized in current period earnings. Gains and losses related to discontinued hedges that were previously accumulated in AOCI will remain in AOCI until the hedged transaction impacts earnings, unless it is probable that the hedged transaction will not occur, in which case, the gains and losses that were previously deferred in AOCI will be immediately recognized in current period earnings. The fair value of a derivative designated as a fair value hedge is recorded for balance sheet purposes as unrealized gains or unrealized losses on derivative instruments. We recognize the gain or loss on the derivative instrument, as well as the offsetting loss or gain on the hedged item in earnings in the current period. All derivatives designated and accounted for as fair value hedges are classified in the same category as the item being hedged in the results of operations. Valuation — When available, quoted market prices or prices obtained through external sources are used to determine a contract's fair value. For contracts with a delivery location or duration for which quoted market prices are not available, fair value is determined based on pricing models developed primarily from historical relationships with quoted market prices and the expected relationship with quoted market prices. Values are adjusted to reflect the credit risk inherent in the transaction as well as the potential impact of liquidating open positions in an orderly manner over a reasonable time period under current conditions. Changes in market prices and management estimates directly affect the estimated fair value of these contracts. Accordingly, it is reasonably possible that such estimates may change in the near term. |
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| Revenue Recognition | Revenue Recognition — We generate the majority of our revenues from gathering, processing, compressing, treating, transporting, storing and fractionating natural gas and NGLs, and from trading and marketing of natural gas and NGLs. We realize revenues either by selling the residue natural gas and NGLs, or by receiving fees. We obtain access to commodities and provide our midstream services principally under contracts that contain a combination of one or more of the following arrangements:
Our marketing of natural gas and NGLs consists of physical purchases and sales, as well as positions in derivative instruments. We recognize revenues for sales and services under the four revenue recognition criteria, as follows:
We generally report revenues gross in the consolidated statements of operations, as we typically act as the principal in these transactions, take custody to the product, and incur the risks and rewards of ownership. We recognize revenues for non-trading commodity derivative activity net in the consolidated statements of operations as gains and losses from commodity derivative activity. These activities include mark-to-market gains and losses on energy trading contracts and the settlement of financial or physical energy trading contracts. Quantities of natural gas or NGLs over-delivered or under-delivered related to imbalance agreements with customers, producers or pipelines are recorded monthly as accounts receivable or accounts payable using current market prices or the weighted-average prices of natural gas or NGLs at the plant or system. These balances are settled with deliveries of natural gas or NGLs, or with cash. |
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| Significant Customers | Significant Customers — There were no third party customers that accounted for more than 10% of total operating revenues for the years ended December 31, 2011, 2010 and 2009. There was one third party customer that accounted for approximately 17% of total operating revenues of the Wholesale Propane Logistics segment for the years ended December 31, 2011 and 2010, respectively, and approximately 12% of revenues for the year ended December 31, 2009. We also had significant transactions with affiliates. |
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| Environmental Expenditures | Environmental Expenditures — Environmental expenditures are expensed or capitalized as appropriate, depending upon the future economic benefit. Expenditures that relate to an existing condition caused by past operations and that do not generate current or future revenue are expensed. Liabilities for these expenditures are recorded on an undiscounted basis when environmental assessments and/or clean-ups are probable and the costs can be reasonably estimated. Environmental liabilities as of December 31, 2011 and 2010, included in the consolidated balance sheets as other current liabilities amounted to $0.8 million and $0.6 million, respectively, and as other long-term liabilities amounted to $1.2 million and $1.3 million, respectively. |
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| Equity-Based Compensation | Equity-Based Compensation — Equity classified stock-based compensation cost is measured at fair value, based on the closing common unit price at grant date, and is recognized as expense over the vesting period. Liability classified stock-based compensation cost is remeasured at each reporting date at fair value, based on the closing common unit price, and is recognized as expense over the requisite service period. Compensation expense for awards with graded vesting provisions is recognized on a straight-line basis over the requisite service period of each separately vesting portion of the award. Awards granted to non-employees for acquiring, or in conjunction with selling, goods and services are measured at the estimated fair value of the goods or services, or the fair value of the award, whichever is more reliably measured. |
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| Allowance For Doubtful Accounts | Allowance for Doubtful Accounts — Management estimates the amount of required allowances for the potential non-collectability of accounts receivable generally based upon the number of days past due, past collection experience and consideration of other relevant factors. However, past experience may not be indicative of future collections and therefore additional charges could be incurred in the future to reflect differences between estimated and actual collections. |
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| Income Taxes | Income Taxes — We are structured as a master limited partnership which is a pass-through entity for federal income tax purposes. Our income tax expense includes certain jurisdictions, including state, local, franchise and margin taxes of the master limited partnership and subsidiaries. We follow the asset and liability method of accounting for income taxes. Under this method, deferred income taxes are recognized for the tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of the assets and liabilities. Our taxable income or loss, which may vary substantially from the net income or loss reported in the consolidated statements of operations, is proportionately included in the federal returns of each partner. |
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| Net Income Or Loss Per Limited Partner Unit | Net Income or Loss per Limited Partner Unit — Basic and diluted net income or loss per limited partner unit, or LPU, is calculated by dividing limited partners' interest in net income or loss, by the weighted-average number of outstanding LPUs during the period. Diluted net income per limited partner unit is computed based on the weighted average number of units plus the effect of dilutive potential units outstanding during the period using the two-class method. |
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Accounting for risk management activities and financial instruments. No definition available.
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Noncontrolling Interest [Policy Text Block] No definition available.
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Significant customers policy. No definition available.
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- Definition
Disclosure of accounting policy for determining amounts to accrue and charge against earnings so as to satisfy legal obligations associated with the retirement (through sale, abandonment, recycling, or disposal in some other manner) of a tangible long-lived asset that result from the acquisition, construction, or development and (or) the normal operation of a long-lived asset. This accounting policy disclosure excludes obligations arising 1) in connection with leased property, whether imposed by a lease agreement or by a party other than the lessor, that meet the definition of either minimum lease payments or contingent rentals; 2) solely from a plan to sell or otherwise dispose of a long-lived asset and 3) from certain environmental remediation liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for salaries, bonuses, incentive awards, postretirement and postemployment benefits granted to employees, including equity-based arrangements; discloses methodologies for measurement, and the bases for recognizing related assets and liabilities and recognizing and reporting compensation expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for costs incurred to obtain or issue debt, the effects of refinancings, method of amortizing deferred financing costs and original issue discount, and classifications of debt on the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for the equity method of accounting for investments in common stock or other interests including unconsolidated subsidiaries, corporate joint ventures, noncontrolling interests in real estate ventures, limited partnerships, and limited liability companies. The accounting policy may include information such as: (1) initially recording an investment in the stock of an investee at cost; (2) adjusting the carrying amount of the investment to recognize the investor's share of the earnings or losses of the investee after the date of acquisition; and (3) adjustments to reflect the investor's share of changes in the investee's capital (dividends). This disclosure may also include a detailed description of the policy for determining the amount of equity method losses recognized after an investment has been reduced to zero as a result of previous losses, reasons for not using the equity method when the investor company owns 20 percent or more of the voting stock of the investee's company (including identification of the significant investee), reasons for using the equity method when the ownership percentage is less than 20 percent, and discussion of recognition of equity method losses when an investor's total investment in an investee includes, in addition to an investment in common stock, other investments such as preferred stock and loans to the investee. An entity also may describe how such investments are assessed for impairment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for major classes of inventories, bases of stating inventories (for example, lower of cost or market), methods by which amounts are added and removed from inventory classes (for example, FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for investments in debt and equity securities that are classified as available-for-sale. This policy also may describe the entity's accounting treatment for transfers between investment categories, how the entity determines whether impairments of available-for-sale securities are other than temporary, and how the fair values of such securities are determined. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Describes how an entity determines the level of its allowance for doubtful accounts for its trade and other accounts receivable balances, and when impairments, charge-offs or recoveries are recognized. The description identifies the factors that influence management's establishment of the level of the allowance (for example, historical losses and existing economic conditions) and may also include discussion of the risk elements relevant to particular categories of receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for liabilities for remediation of environmental matters. The accounting policy may specify the conditions under which rate actions of a regulator provide reasonable assurance of the existence of an asset pertaining thereto. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary Of Significant Accounting Policies (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Summary Of Significant Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Derivatives, Accounting Method And Presentation |
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| X | ||||||||||
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- Definition
Schedule of Derivatives Instruments, Accounting Method and Presentation No definition available.
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| X | ||||||||||
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- Details
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Acquisitions (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Acquisitions [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Preliminary Purchase Price Allocation |
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| Unaudited Pro Forma Information |
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| X | ||||||||||
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- Definition
Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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- Definition
Tabular disclosure of all of the fair values of the purchase price and assets and liabilities acquired in a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Agreements And Transactions With Affiliates (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Agreements And Transactions With Affiliates [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Fees Incurred And Other Fees Paid |
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| Transactions With Affiliates |
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| Balances With Affiliates |
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| X | ||||||||||
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- Definition
Balances with Affiliates Disclosure [Table Text Block] No definition available.
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| X | ||||||||||
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- Definition
Schedule of fees paid to Parent. No definition available.
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| X | ||||||||||
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- Definition
Schedule Of Transactions With Affiliates No definition available.
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| X | ||||||||||
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- Details
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Property, Plant And Equipment (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Property, Plant And Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification Of Property, Plant And Equipment |
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Goodwill And Intangible Assets (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Goodwill And Intangible Assets [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Changes In Carrying Amount Of Goodwill |
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| Schedule Of Intangible Assets |
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| Finite Lived Intangible Assets Future Amortization Expense |
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- Details
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- Definition
Tabular disclosure of the estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Investments In Unconsolidated Affiliates (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Investments In Unconsolidated Affiliates [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investments In Unconsolidated Affiliates |
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| Earnings From Investments In Unconsolidated Affiliates |
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| Equity Method Investment Summarized Financial Information, Statement of Operations |
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| Equity Method Investment Summarized Financial Information, Balance Sheet [Table Text Block] |
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| X | ||||||||||
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- Definition
Equity Method Investment Summarized Financial Information, Balance Sheet [Table Text Block] No definition available.
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| X | ||||||||||
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- Definition
Schedule of Earnings from Investment in Unconsolidated Affiliates [Table Text Block] No definition available.
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| X | ||||||||||
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- Definition
Equity Method Investment Summarized Financial Information [Table Text Block] No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of equity method investments in common stock. The disclosure may include: (a) the name of each investee or group of investments for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurement (Tables)
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Dec. 31, 2011
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| Fair Value Measurement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financial Instruments Carried At Fair Value |
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| Condensed Consolidated Balance Sheets For Derivative Financial Instruments |
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- Definition
Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Debt (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Debt [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Long-Term Debt |
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| Future Maturities Of Long-Term Debt |
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- Details
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- Definition
Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Risk Management And Hedging Activities (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Risk Management And Hedging Activities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Cash Flow Hedges Included In Accumulated Other Comprehensive Income (Loss) |
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| Schedule Of Designated And Non-Designated Derivative Instruments In Statement Of Financial Position, Fair Value |
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| Schedule Of Derivatives Accounted For As Cash Flow Hedges |
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| Schedule Of Changes In Derivative Instruments Not Designated As Hedging Instruments |
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| Schedule Of Net Long Or Short Positions Expected To Be Realized |
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| X | ||||||||||
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- Definition
Schedule of Designated and Non-Designated Derivative Instruments in Statement Of Financial Position, Fair Value No definition available.
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- Details
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- Definition
Tabular disclosure of the components of accumulated other comprehensive income (loss). No definition available.
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- Definition
Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the notional amounts of outstanding derivative positions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure for other derivative instruments not designated as hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Partnership Equity And Distributions (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Partnership Equity And Distributions [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash Distribution |
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- Details
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- Definition
Tabular disclosure of payments of cash or stock or units made to members or limited partners of the LLC or LP during an accounting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Equity-Based Compensation (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Total Compensation Cost For Equity-Based Arrangements |
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Performance Units [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award |
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| Fair Value Of Units Vested And The Unit-Based Liabilities Paid For Unit Based Awards |
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Phantom Units [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award |
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| Fair Value Of Units Vested And The Unit-Based Liabilities Paid For Unit Based Awards |
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Restricted Phantom Units [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award |
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| Fair Value Of Units Vested And The Unit-Based Liabilities Paid For Unit Based Awards |
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| X | ||||||||||
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- Definition
Tabular disclosure of the fair value of units vested and the unit-based liabilities paid for unit based awards during the period. No definition available.
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| X | ||||||||||
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- Definition
Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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Income Taxes (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Income Taxes [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components Of Income Tax Benefit (Expense) |
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments And Contingent Liabilities (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Commitments And Contingent Liabilities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Future Minimum Rental Payments For Various Operating Leases |
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Business Segments (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Business Segments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Segments | Year Ended December 31, 2011:
Year Ended December 31, 2010:
Year Ended December 31, 2009:
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| X | ||||||||||
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- Definition
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Supplemental Cash Flow Information (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Supplemental Cash Flow Information [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Supplemental Cash Flow Information |
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- Definition
Tabular disclosure of supplemental cash flow information for the periods presented. No definition available.
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- Details
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Quarterly Financial Data (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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Dec. 31, 2010
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| Quarterly Financial Data [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Quarterly Consolidated Results Of Operations |
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Supplementary Information - Condensed Consolidating Financial Information (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Supplementary Information - Condensed Consolidating Financial Information [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Condensed Consolidating Balance Sheets |
|
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| Condensed Consolidating Statements Of Operations |
|
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| Condensed Consolidating Statements Of Cash Flows |
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- Definition
Condensed Consolidating Balance Sheets [Table Text Block] No definition available.
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- Definition
Condensed Consolidating Statements of Cash Flows [Table Text Block] No definition available.
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- Definition
Condensed Consolidating Statements of Operations [Table Text Block] No definition available.
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- Details
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Valuation And Qualifying Accounts And Reserves (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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| Valuation And Qualifying Accounts And Reserves [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Valuation And Qualifying Accounts Reserves |
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| X | ||||||||||
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- Definition
Schedule Of Valuation And Qualifying Accounts Reserves [Table Text Block] No definition available.
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| X | ||||||||||
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- Details
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Description Of Business And Basis Of Presentation (Details)
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12 Months Ended | 1 Months Ended | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Feb. 27, 2012
Southeast Texas [Member]
|
Dec. 31, 2011
Southeast Texas [Member]
|
Feb. 27, 2011
Southeast Texas [Member]
|
Jan. 31, 2011
Southeast Texas [Member]
|
Dec. 31, 2011
Discovery [Member]
|
Dec. 31, 2011
East Texas System [Member]
|
Nov. 14, 2011
East Texas System [Member]
|
Apr. 30, 2009
East Texas System [Member]
|
Jul. 31, 2010
BP PLC [Member]
|
Dec. 31, 2011
Spectra Energy [Member]
|
Dec. 31, 2011
ConocoPhillips [Member]
|
Dec. 31, 2011
DCP Midstream, LLC [Member]
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Jul. 31, 2010
DCP Midstream, LLC [Member]
|
Dec. 31, 2011
Black Lake [Member]
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Jul. 31, 2010
Black Lake [Member]
|
Dec. 31, 2011
Collbran [Member]
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Dec. 31, 2010
Collbran [Member]
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Feb. 28, 2010
Collbran [Member]
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Dec. 30, 2010
EE Group [Member]
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Dec. 31, 2011
Investment In Greater Than 20% [Member]
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Dec. 31, 2011
Investment In Less Than 20% [Member]
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| Business Acquisition [Line Items] | |||||||||||||||||||||
| Ownership interest percentage | 33.33% | 33.33% | 40.00% | 20.00% | 20.00% | ||||||||||||||||
| Previously acquired ownership interest | 66.67% | 33.33% | 66.67% | 25.10% | 50.00% | 5.00% | 55.00% | 5.00% | |||||||||||||
| Ownership interest percentage | 50.10% | 50.10% | 25.10% | 50.00% | 50.00% | 27.00% | 75.00% | 75.00% | |||||||||||||
| Ownership interest percentage | 100.00% | 100.00% | |||||||||||||||||||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
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| X | ||||||||||
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- Definition
The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary Of Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Significant customers | 1 | 1 | 1 |
| Environmental liabilities, current | $ 0.8 | $ 0.6 | |
| Environmental liabilities, non-current | $ 1.2 | $ 1.3 | |
| Customers that accounted for total operating revenues | 10.00% | ||
|
Investment In Greater Than 20% [Member]
|
|||
| Acquisition of additional percentage for Southern Oklahoma | 20.00% | ||
|
Investment In Less Than 20% [Member]
|
|||
| Acquisition of additional percentage for Southern Oklahoma | 20.00% | ||
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Wholesale Propane Logistics [Member]
|
|||
| Significant customers, percentage accounted of total revenue | 17.00% | 17.00% | 12.00% |
| X | ||||||||||
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- Definition
Customers that accounted for total operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
Significant customers. No definition available.
|
| X | ||||||||||
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- Definition
Significant customers, percentage accounted of total revenue. No definition available.
|
| X | ||||||||||
|
- Definition
Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Summary Of Significant Accounting Policies (Schedule of Derivatives, Accounting Method and Presentation) (Details)
|
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
||||||||
|
Non-Trading Derivative Activity [Member]
|
||||||||
| Classification of Contract | Non-Trading Derivative Activity | |||||||
| Accounting Method | Mark-to-market method (a) | [1] | ||||||
| Presentation of Gains & Losses or Revenue & Expense | Net basis in gains and losses from commodity derivative activity | |||||||
|
Cash Flow Hedge [Member]
|
||||||||
| Classification of Contract | Cash Flow Hedge | |||||||
| Accounting Method | Hedge method (b) | [2] | ||||||
| Presentation of Gains & Losses or Revenue & Expense | Gross basis in the same consolidated statements of operations category as the related hedged item | |||||||
|
Fair Value Hedge [Member]
|
||||||||
| Classification of Contract | Fair Value Hedge | |||||||
| Accounting Method | Hedge method (b) | [2] | ||||||
| Presentation of Gains & Losses or Revenue & Expense | Gross basis in the same consolidated statements of operations category as the related hedged item | |||||||
|
Normal Purchases Or Normal Sales [Member]
|
||||||||
| Classification of Contract | Normal Purchases or Normal Sales | |||||||
| Accounting Method | Accrual method (c) | [3] | ||||||
| Presentation of Gains & Losses or Revenue & Expense | Gross basis upon settlement in the corresponding consolidated statements of operations category based on purchase or sale | |||||||
|
||||||||
| X | ||||||||||
|
- Definition
Describes the basis at which an entity records derivatives in its statements of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Describes each method an entity uses to account for its derivative financial instruments and derivative commodity instruments ("derivatives"). Also describes (separately addressing derivatives entered into for trading purposes and those entered into for purposes other than trading that is interest rate derivatives, risk management, commitments): (1) the types of derivatives accounted for under each method; (2) the criteria required to be met for each accounting method used, including a discussion of the criteria required to be met for hedge accounting (for example, whether and how risk reduction, correlation, designation, and effectiveness tests are applied); and (3) the accounting method used if the criteria for hedge accounting are not met. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Describes the types of derivatives and the accounting method used by the entity for each type. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Acquisitions (Narrative) (Details) (USD $)
|
0 Months Ended | 3 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 24, 2011
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Jun. 15, 2011
|
Dec. 31, 2011
DCP Midstream Partners, LP [Member]
|
Dec. 31, 2010
DCP Midstream Partners, LP [Member]
|
Dec. 31, 2009
DCP Midstream Partners, LP [Member]
|
Mar. 24, 2011
Weld County Fractionators [Member]
|
Dec. 31, 2011
Black Lake [Member]
|
Jul. 31, 2010
Black Lake [Member]
|
Dec. 31, 2011
Southeast Texas [Member]
|
Feb. 27, 2012
Southeast Texas [Member]
|
Feb. 27, 2011
Southeast Texas [Member]
|
Jan. 31, 2011
Southeast Texas [Member]
|
Jul. 31, 2010
DCP Midstream, LLC [Member]
|
Dec. 30, 2010
Dart Energy Corporation [Member]
|
Dec. 30, 2010
Prospect Street Energy [Member]
|
Dec. 30, 2010
EE Group [Member]
|
Apr. 18, 2011
Marysville Acquisition [Member]
|
Dec. 30, 2010
Marysville Acquisition [Member]
|
Dec. 31, 2011
Marysville Acquisition [Member]
|
Jan. 04, 2011
Marysville Acquisition [Member]
|
Dec. 31, 2011
Eagle Ford Shale [Member]
MMcf
|
|
| Business Acquisition [Line Items] | ||||||||||||||||||||||||||||||||
| Investment | $ 120,000,000 | |||||||||||||||||||||||||||||||
| Total plant capacity | 200 | |||||||||||||||||||||||||||||||
| Long term purchase commitment time period | 15 | |||||||||||||||||||||||||||||||
| Gas processing agreements capacity | 150 | |||||||||||||||||||||||||||||||
| Facilities acquired | 2 | |||||||||||||||||||||||||||||||
| Purchase price adjustment | 400,000 | |||||||||||||||||||||||||||||||
| Business acquisition purchase price | 100,800,000 | 100,800,000 | 30,000,000 | 150,000,000 | 100,800,000 | 23,400,000 | ||||||||||||||||||||||||||
| Previously acquired ownership interest | 55.00% | 33.33% | 66.67% | 66.67% | 5.00% | |||||||||||||||||||||||||||
| Business acquisition cash paid | 150,000,000 | 240,000,000 | 240,000,000 | 94,800,000 | ||||||||||||||||||||||||||||
| Historical carrying value of net assets acquired | 114,300,000 | |||||||||||||||||||||||||||||||
| Net working capital and other adjustments | 6,000,000 | |||||||||||||||||||||||||||||||
| Escrow deposit | 19,500,000 | 19,500,000 | 21,200,000 | |||||||||||||||||||||||||||||
| Escrow release | 1,700,000 | |||||||||||||||||||||||||||||||
| Excess purchase price over acquired assets | 35,700,000 | 800,000 | 35,700,000 | |||||||||||||||||||||||||||||
| Ownership interest percentage | 33.33% | 33.33% | ||||||||||||||||||||||||||||||
| Ownership interest percentage | 100.00% | 90.00% | 5.00% | 100.00% | 5.00% | |||||||||||||||||||||||||||
| Fair value of contingent consideration | 100,800,000 | 100,800,000 | ||||||||||||||||||||||||||||||
| Estimated deferred tax liabilities | 5,400,000 | 35,000,000 | ||||||||||||||||||||||||||||||
| Estimated federal tax payment | 29,300,000 | 29,300,000 | ||||||||||||||||||||||||||||||
| Current state | (500,000) | (400,000) | (500,000) | 300,000 | ||||||||||||||||||||||||||||
| Operating revenue | 387,200,000 | 383,300,000 | 374,200,000 | 425,100,000 | 348,400,000 | 239,900,000 | 277,500,000 | 403,700,000 | 1,569,800,000 | 1,269,500,000 | 942,400,000 | 26,700,000 | ||||||||||||||||||||
| Net income (loss) | $ 4,500,000 | $ 65,900,000 | $ 51,200,000 | $ (2,400,000) | $ 9,100,000 | $ 3,300,000 | $ 26,800,000 | $ 32,400,000 | $ 119,200,000 | $ 71,600,000 | $ (2,400,000) | $ 100,400,000 | $ 62,400,000 | $ (10,700,000) | $ 12,600,000 | |||||||||||||||||
| X | ||||||||||
|
- Definition
Business Acquisition Cost Of Acquired Entity Other Adjustments No definition available.
|
| X | ||||||||||
|
- Definition
Escrow Release No definition available.
|
| X | ||||||||||
|
- Definition
Excess purchase price over acquired assets No definition available.
|
| X | ||||||||||
|
- Definition
Facilities Acquired No definition available.
|
| X | ||||||||||
|
- Definition
Gas Processing Agreement Agreed Volumes Per Day No definition available.
|
| X | ||||||||||
|
- Definition
Historical Carrying Value Of Net Assets Acquired No definition available.
|
| X | ||||||||||
|
- Definition
Plant Cost No definition available.
|
| X | ||||||||||
|
- Definition
Purchase Price Adjustment No definition available.
|
| X | ||||||||||
|
- Definition
Total plant capacity No definition available.
|
| X | ||||||||||
|
- Definition
Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash paid to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Specifies the time period covered by the arrangement. No definition available.
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Acquisitions (Preliminary Purchase Price Allocation) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
|---|---|
| Acquisitions [Abstract] | |
| Aggregate consideration | $ 100.8 |
| Cash | 3.1 |
| Accounts receivable | 0.3 |
| Inventory | 4.6 |
| Other current assets | 0.7 |
| Property, plant and equipment | 57.1 |
| Intangible assets | 33.0 |
| Goodwill | 34.7 |
| Other long-term assets | 1.2 |
| Other current liabilities | (4.3) |
| Long-term liabilities | (29.6) |
| Total purchase price allocation | $ 100.8 |
| X | ||||||||||
|
- Definition
Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash and cash equivalents acquired in a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to prepaid expenses and other current assets. Does not include amounts allocated to cash and cash equivalents, marketable securities, receivables, inventory, and assets not to be used. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to other current liabilities of the acquired entity. Does not include amounts allocated to the current portion of long-term debt, accounts payable and accrued expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to noncurrent liabilities of the acquired entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to noncurrent assets of the acquired entity, except for property plant and equipment, intangible assets, and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Acquisitions (Unaudited Pro Forma Information) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Net income attributable to predecessor operations | $ (14.4) | $ (7.4) | |||||||||
| General partner unitholders interest in net income | (25.2) | (16.9) | (12.7) | ||||||||
| Net income allocable to limited partners | (8.2) | 59.5 | 35.3 | (11.4) | (4.5) | (8.2) | 21.8 | 22.0 | 75.2 | 31.1 | (30.8) |
|
DCP Midstream Partners, LP [Member]
|
|||||||||||
| Total operating revenues | 1,269.5 | ||||||||||
| Net income attributable to partners | 62.4 | ||||||||||
| Net income attributable to predecessor operations | (14.4) | ||||||||||
| General partner unitholders interest in net income | (16.9) | ||||||||||
| Net income allocable to limited partners | 31.1 | ||||||||||
| Net income per limited partner unit - basic and diluted | $ 0.86 | ||||||||||
|
Marysville Acquisition [Member]
|
|||||||||||
| Total operating revenues | 23.2 | ||||||||||
| Net income attributable to partners | 8.2 | ||||||||||
| General partner unitholders interest in net income | (0.1) | ||||||||||
| Net income allocable to limited partners | 8.1 | ||||||||||
| Net income per limited partner unit - basic and diluted | $ 0.22 | ||||||||||
|
DCP Midstream Partners, LP Pro Forma [Member]
|
|||||||||||
| Total operating revenues | 1,292.7 | ||||||||||
| Net income attributable to partners | 70.6 | ||||||||||
| Net income attributable to predecessor operations | (14.4) | ||||||||||
| General partner unitholders interest in net income | (17.0) | ||||||||||
| Net income allocable to limited partners | $ 39.2 | ||||||||||
| Net income per limited partner unit - basic and diluted | $ 1.08 | ||||||||||
| X | ||||||||||
|
- Definition
Business Acquisition Pro Forma Earnings Per Share Basic And Diluted No definition available.
|
| X | ||||||||||
|
- Definition
Net Loss Attributable To Predecessor Operations No definition available.
|
| X | ||||||||||
|
- Definition
The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate amount of net income allocated to general partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate amount of net income allocated to limited partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Agreements And Transactions With Affiliates (Narrative) (Details) (USD $)
|
3 Months Ended | 12 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Dec. 31, 2011
DCP Midstream, LLC [Member]
|
Jul. 31, 2010
DCP Midstream, LLC [Member]
|
Dec. 31, 2011
ConocoPhillips [Member]
|
Dec. 31, 2010
ConocoPhillips [Member]
|
Dec. 31, 2009
ConocoPhillips [Member]
|
Dec. 31, 2011
Spectra Energy [Member]
gal
|
Dec. 31, 2011
East Texas System [Member]
|
Dec. 31, 2010
East Texas System [Member]
|
Dec. 31, 2009
East Texas System [Member]
|
Nov. 14, 2011
East Texas System [Member]
|
Apr. 30, 2009
East Texas System [Member]
|
Sep. 16, 2010
Collbran [Member]
|
Dec. 31, 2011
Collbran [Member]
|
Dec. 31, 2010
Collbran [Member]
|
Feb. 28, 2010
Collbran [Member]
|
Feb. 27, 2012
Southeast Texas [Member]
|
Dec. 31, 2011
Southeast Texas [Member]
|
Feb. 27, 2011
Southeast Texas [Member]
|
Dec. 31, 2011
DJ Basin NGL Fractionators [Member]
|
Jan. 03, 2012
East Texas System [Member]
|
Dec. 31, 2011
East Texas System [Member]
|
Nov. 04, 2011
East Texas System [Member]
|
Apr. 30, 2009
East Texas System [Member]
|
Jul. 31, 2007
East Texas System [Member]
|
Dec. 31, 2011
East Texas System [Member]
DCP Midstream, LLC [Member]
|
Dec. 31, 2010
Noncontrolling Interests [Member]
|
Dec. 31, 2011
Commodity Derivative Instruments [Member]
DCP Midstream, LLC [Member]
|
Dec. 31, 2011
Eagle Ford Shale [Member]
MMcf
|
|
| Segment Reporting Information [Line Items] | |||||||||||||||||||||||||||||||||||||||
| General and administrative expenses incurred | $ 17,900,000 | $ 14,300,000 | $ 11,900,000 | $ 7,500,000 | $ 7,800,000 | $ 8,500,000 | |||||||||||||||||||||||||||||||||
| Other expenses | 1,400,000 | 1,500,000 | 1,900,000 | ||||||||||||||||||||||||||||||||||||
| Percentage of Business Acquired | 5.00% | 25.10% | 5.00% | 66.67% | 33.33% | 66.67% | 49.90% | ||||||||||||||||||||||||||||||||
| Business acquisition cash paid | 240,000,000 | 150,000,000 | 240,000,000 | 165,000,000 | |||||||||||||||||||||||||||||||||||
| Contributions from DCP Midstream, LLC | 600,000 | 700,000 | 18,300,000 | 13,800,000 | |||||||||||||||||||||||||||||||||||
| Sell of certain surplus equipment net book value | 6,200,000 | ||||||||||||||||||||||||||||||||||||||
| Proceeds from sell of certain surplus equipment net | 2,600,000 | 3,600,000 | |||||||||||||||||||||||||||||||||||||
| Percentage of investment in affiliate | 49.90% | 25.00% | |||||||||||||||||||||||||||||||||||||
| Ownership interest percentage | 27.00% | 50.00% | 50.00% | 50.10% | 50.10% | 25.10% | 75.00% | 75.00% | 49.90% | 50.10% | 25.10% | 25.00% | |||||||||||||||||||||||||||
| Distributions to DCP Midstream, LLC | 2,600,000 | ||||||||||||||||||||||||||||||||||||||
| Related Party Transaction, Terms and Manner of Settlement | 10 | ||||||||||||||||||||||||||||||||||||||
| Acquisition fees | 105,400,000 | 79,800,000 | 69,700,000 | 600,000 | |||||||||||||||||||||||||||||||||||
| Parental guarantees issued | 6,000,000 | 70,000,000 | |||||||||||||||||||||||||||||||||||||
| Annual interest on outstanding guarantees | 0.50% | ||||||||||||||||||||||||||||||||||||||
| Supply of propane annually in gallons | 185,000,000 | ||||||||||||||||||||||||||||||||||||||
| Damage reimburse payment | 17,000,000 | ||||||||||||||||||||||||||||||||||||||
| Total plant capacity | 200 | ||||||||||||||||||||||||||||||||||||||
| Gas processing agreements capacity | 150 | ||||||||||||||||||||||||||||||||||||||
| Long-term Purchase Commitment, Time Period | 15 | ||||||||||||||||||||||||||||||||||||||
| Business acquisition purchase price | 100,800,000 | 100,800,000 | 150,000,000 | 23,400,000 | |||||||||||||||||||||||||||||||||||
| Value of the plant | 120,000,000 | ||||||||||||||||||||||||||||||||||||||
| Settlement receivable | 6,600,000 | 7,800,000 | |||||||||||||||||||||||||||||||||||||
| Net income attributable to noncontrolling interests | 6,000,000 | (400,000) | 9,700,000 | 3,500,000 | 4,800,000 | 3,300,000 | 1,000,000 | 100,000 | 18,800,000 | 9,200,000 | 8,300,000 | 4,600,000 | |||||||||||||||||||||||||||
| Capital reimbursements | $ 100,000 | $ 200,000 | $ 600,000 | ||||||||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
Annual interest on outstanding guarantees No definition available.
|
| X | ||||||||||
|
- Definition
Damage reimburse payment. No definition available.
|
| X | ||||||||||
|
- Definition
Gas Processing Agreement Agreed Volumes Per Day No definition available.
|
| X | ||||||||||
|
- Definition
Machinery And Equipment Net No definition available.
|
| X | ||||||||||
|
- Definition
Parental Guarantees Issued No definition available.
|
| X | ||||||||||
|
- Definition
Plant Cost No definition available.
|
| X | ||||||||||
|
- Definition
Propane Supply No definition available.
|
| X | ||||||||||
|
- Definition
Settlement receivable No definition available.
|
| X | ||||||||||
|
- Definition
Total plant capacity No definition available.
|
| X | ||||||||||
|
- Definition
Amount of cash paid to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Specifies the time period covered by the arrangement. No definition available.
|
| X | ||||||||||
|
- Definition
The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
|
| X | ||||||||||
|
- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
|
| X | ||||||||||
|
- Definition
The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents a sum total of expenses not separately reflected on the income statement for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from sale of machinery and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the terms and manner of settlement of the related party transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Discloses the amount of operating expense for the period for routine plant maintenance and repairs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Agreements And Transactions With Affiliates (Schedule Of Fees Incurred And Other Fees Paid) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Omnibus Agreement | $ 10.2 | $ 9.9 | $ 9.7 |
| Other fees - DCP Midstream, LLC | 8.9 | 9.3 | 10.4 |
| Total - DCP Midstream, LLC | 19.4 | 19.4 | 20.4 |
|
DCP Midstream, LLC [Member]
|
|||
| Total - DCP Midstream, LLC | $ 19.1 | $ 19.2 | $ 20.1 |
| X | ||||||||||
|
- Definition
General And Administrative Expense Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Omnibus Agreement No definition available.
|
| X | ||||||||||
|
- Definition
Other Fees Paid To Parent No definition available.
|
|
Agreements And Transactions With Affiliates (Transactions With Affiliates) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
||||||
| Related Party Transaction [Line Items] | ||||||||
| Sales of natural gas, propane, NGLs and condensate to affiliates | $ 592.8 | $ 528.4 | $ 456.7 | |||||
| Transportation, processing and other | 33.4 | 20.4 | 16.0 | |||||
| Purchases of natural gas, propane and NGLs from affiliates | 446.8 | 277.4 | 246.7 | |||||
| Losses from commodity derivative activity, net | (0.7) | (1.2) | (3.5) | |||||
| Operating and maintenance expense | 105.4 | 79.8 | 69.7 | |||||
| General and administrative expense | 19.4 | 19.4 | 20.4 | |||||
| Other income | 3.0 | |||||||
| Interest expense | 33.9 | 29.1 | 28.3 | |||||
|
DCP Midstream, LLC [Member]
|
||||||||
| Related Party Transaction [Line Items] | ||||||||
| Sales of natural gas, propane, NGLs and condensate to affiliates | 577.2 | 522.7 | 451.4 | |||||
| Transportation, processing and other | 26.0 | 12.1 | 7.5 | |||||
| Purchases of natural gas, propane and NGLs from affiliates | 185.4 | 183.1 | 138.4 | |||||
| Losses from commodity derivative activity, net | (0.7) | (1.2) | (3.5) | |||||
| Operating and maintenance expense | 0.6 | |||||||
| General and administrative expense | 19.1 | 19.2 | 20.1 | |||||
| Interest expense | 0.4 | 0.2 | 0.2 | |||||
|
Spectra Energy [Member]
|
||||||||
| Related Party Transaction [Line Items] | ||||||||
| Transportation, processing and other | 0.2 | 0.3 | ||||||
| Purchases of natural gas, propane and NGLs from affiliates | 249.6 | [1] | 82.1 | [1] | 95.2 | [1] | ||
| Other income | 3.0 | |||||||
|
ConocoPhillips [Member]
|
||||||||
| Related Party Transaction [Line Items] | ||||||||
| Sales of natural gas, propane, NGLs and condensate to affiliates | 15.6 | 5.7 | 5.3 | |||||
| Transportation, processing and other | 7.4 | 8.1 | 8.2 | |||||
| Purchases of natural gas, propane and NGLs from affiliates | 5.8 | 7.4 | 12.7 | |||||
| General and administrative expense | 0.3 | 0.2 | 0.3 | |||||
|
Unconsolidated Affiliates [Member]
|
||||||||
| Related Party Transaction [Line Items] | ||||||||
| Purchases of natural gas, propane and NGLs from affiliates | $ 6.0 | $ 4.8 | $ 0.4 | |||||
|
||||||||
| X | ||||||||||
|
- Definition
General And Administrative Expense Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Losses From Commodity Derivative Activity Net Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Natural Gas Propane NGLs Condensate Purchases from Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Natural Gas Propane NGLs Condensate Revenue to Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Other Income Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Transportation Processing And Other To Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Discloses the amount of operating expense for the period for routine plant maintenance and repairs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Agreements And Transactions With Affiliates (Balances With Affiliates) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Related Party Transaction [Line Items] | ||
| Accounts receivable | $ 69.6 | $ 61.7 |
| Accounts payable | 46.0 | 37.6 |
|
DCP Midstream, LLC [Member]
|
||
| Related Party Transaction [Line Items] | ||
| Accounts receivable | 66.2 | 60.1 |
| Accounts payable | 21.8 | 27.0 |
| Unrealized gains on derivative instruments - current | 0.6 | 1.3 |
| Unrealized losses on derivative instruments - current | (0.6) | (1.8) |
|
Spectra Energy [Member]
|
||
| Related Party Transaction [Line Items] | ||
| Accounts payable | 21.4 | 8.7 |
|
ConocoPhillips [Member]
|
||
| Related Party Transaction [Line Items] | ||
| Accounts receivable | 3.4 | 1.6 |
| Accounts payable | 0.4 | 1.0 |
|
Unconsolidated Affiliates [Member]
|
||
| Related Party Transaction [Line Items] | ||
| Accounts payable | $ 2.4 | $ 0.9 |
| X | ||||||||||
|
- Definition
Unrealized Gains On Derivative Instruments Related Parties Current No definition available.
|
| X | ||||||||||
|
- Definition
Unrealized Losses On Derivative Instruments Related Parties Current No definition available.
|
| X | ||||||||||
|
- Definition
Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Property, Plant And Equipment (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Property, Plant And Equipment [Abstract] | |||
| Interest capitalized on construction projects | $ 1.6 | $ 0.2 | $ 1.3 |
| Depreciation expense | 74.9 | 70.0 | 62.3 |
| Asset retirement obligations | 11.4 | 10.8 | |
| Accretion expense | $ 0.6 | $ 0.6 | $ 0.3 |
| X | ||||||||||
|
- Definition
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of interest that was capitalized during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Property, Plant And Equipment (Classification Of Property, Plant And Equipment) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2011
years
|
Dec. 31, 2010
|
||||
| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment | $ 1,719.0 | $ 1,559.9 | |||
| Accumulated depreciation | (537.2) | (462.8) | |||
| Property, plant and equipment, net | 1,181.8 | 1,097.1 | [1] | ||
|
Gathering And Transmission Systems [Member]
|
|||||
| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment | 1,011.0 | 992.0 | |||
| Depreciable life, minimum | 15 | ||||
| Depreciable life, maximum | 30 | ||||
|
Processing, Storage, And Terminal Facilities [Member]
|
|||||
| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment | 538.1 | 513.2 | |||
| Depreciable life, minimum | 20 | ||||
| Depreciable life, maximum | 50 | ||||
|
Other Equipment [Member]
|
|||||
| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment, other | 18.9 | 12.6 | |||
| Depreciable life, minimum | 0 | ||||
| Depreciable life, maximum | 30 | ||||
|
Construction Work In Progress [Member]
|
|||||
| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment | $ 151.0 | $ 42.1 | |||
|
|||||
| X | ||||||||||
|
- Definition
The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents capitalized assets classified as property, plant and equipment not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. No definition available.
|
| X | ||||||||||
|
- Definition
The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. No definition available.
|
|
Goodwill And Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
years
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Goodwill [Line Items] | |||
| Goodwill | $ 141.9 | $ 139.3 | $ 92.1 |
| Goodwill, purchase price adjustment | 34.7 | ||
| Amortization expense | 6.1 | 3.7 | 2.6 |
| Amortization periods, minimum | 10 | ||
| Amortization periods, maximum | 24 | ||
| Weighted-average remaining period | 20 | ||
| Intangible assets acquired | 113.9 | 119.3 | |
|
Marysville Acquisition [Member]
|
|||
| Goodwill [Line Items] | |||
| Goodwill, increase (decrease) of purchase price adjustment | (4.9) | ||
|
Michigan System [Member]
|
|||
| Goodwill [Line Items] | |||
| Goodwill, purchase price adjustment | 2.6 | ||
| Goodwill, increase (decrease) of purchase price adjustment | 7.5 | ||
|
Natural Gas Services [Member]
|
|||
| Goodwill [Line Items] | |||
| Goodwill | 70.3 | 62.8 | |
|
Wholesale Propane Logistics [Member]
|
|||
| Goodwill [Line Items] | |||
| Goodwill | 36.9 | 36.9 | |
|
NGL Logistics [Member]
|
|||
| Goodwill [Line Items] | |||
| Goodwill | $ 34.7 | $ 39.6 | |
| X | ||||||||||
|
- Definition
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate amount of intangible asset amortization recognized as expense during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The minimum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The calculated weighted-average useful life of all finite-lived intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The change during the reporting period in the carrying value of goodwill. The change could be the result of new goodwill acquired, goodwill impairment during the period, goodwill written off related to the sale of a business or other adjustments to goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Goodwill And Intangible Assets (Changes In Carrying Amount Of Goodwill) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Goodwill And Intangible Assets [Abstract] | ||
| Beginning of period | $ 139.3 | $ 92.1 |
| Acquisitions | 2.6 | 47.2 |
| End of period | $ 141.9 | $ 139.3 |
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Goodwill And Intangible Assets (Schedule Of Intangible Assets) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Goodwill And Intangible Assets [Abstract] | ||
| Gross carrying amount | $ 129.4 | $ 128.7 |
| Accumulated amortization | (15.5) | (9.4) |
| Intangible assets, net | $ 113.9 | $ 119.3 |
| X | ||||||||||
|
- Definition
The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Goodwill And Intangible Assets (Finite Lived Intangible Assets Future Amortization Expense) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2011
|
|
| Goodwill And Intangible Assets [Abstract] | |
| 2012 | $ 6.0 |
| 2013 | 6.0 |
| 2014 | 6.0 |
| 2015 | 6.0 |
| 2016 | 6.0 |
| Thereafter | 83.9 |
| Total | $ 113.9 |
| X | ||||||||||
|
- Definition
The aggregate estimated amortization expense for succeeding fiscal years for intangible assets subject to amortization. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of amortization expense expected to be recognized for the remainder of the finite-lived intangible asset useful life after the fifth succeeding fiscal year. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Investments In Unconsolidated Affiliates (Narrative) (Details) (Discovery [Member], USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
|
Discovery [Member]
|
||
| Investments in and Advances to Affiliates [Line Items] | ||
| Deficit between the carrying amount of the investment and the underlying equity | $ 32.6 | $ 35.1 |
| X | ||||||||||
|
- Definition
The item represents the difference, if any, between the amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and the amount of underlying equity in net assets the reporting Entity has in the investee. A difference can arise between the carrying value of the equity method investment and the value of the Entity's amount of underlying equity in net assets of the investee, for example, from appreciation of certain assets which is not recognized in earnings, but is recognized in other comprehensive income (a separate component of shareholders' equity) by the investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Investments In Unconsolidated Affiliates (Investments In Unconsolidated Affiliates) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Investments in and Advances to Affiliates [Line Items] | ||
| Investments in unconsolidated affiliates | $ 208.7 | $ 216.9 |
|
Discovery [Member]
|
||
| Investments in and Advances to Affiliates [Line Items] | ||
| Investments in unconsolidated affiliates | 106.9 | 104.1 |
| Ownership interest percentage | 40.00% | 40.00% |
|
Southeast Texas [Member]
|
||
| Investments in and Advances to Affiliates [Line Items] | ||
| Investments in unconsolidated affiliates | 101.6 | 112.6 |
| Ownership interest percentage | 33.00% | 33.00% |
|
Other [Member]
|
||
| Investments in and Advances to Affiliates [Line Items] | ||
| Investments in unconsolidated affiliates | $ 0.2 | $ 0.2 |
| Ownership interest percentage | 50.00% | 50.00% |
| X | ||||||||||
|
- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Investments In Unconsolidated Affiliates (Earnings From Investments In Unconsolidated Affiliates) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Jul. 31, 2010
BP PLC [Member]
|
Jul. 31, 2010
DCP Midstream, LLC [Member]
|
Dec. 31, 2011
Discovery [Member]
|
Dec. 31, 2010
Discovery [Member]
|
Dec. 31, 2009
Discovery [Member]
|
Dec. 31, 2011
Southeast Texas [Member]
|
Dec. 31, 2010
Southeast Texas [Member]
|
Dec. 31, 2009
Southeast Texas [Member]
|
Dec. 31, 2010
Other [Member]
|
Dec. 31, 2009
Other [Member]
|
Dec. 31, 2011
Black Lake [Member]
|
Jul. 28, 2010
Black Lake [Member]
|
Jul. 30, 2010
Black Lake [Member]
BP PLC [Member]
|
Jul. 27, 2010
Black Lake [Member]
DCP Midstream, LLC [Member]
|
|||||
| Investments in and Advances to Affiliates [Line Items] | |||||||||||||||||||||
| Earnings from unconsolidated affiliates | $ 36.9 | $ 38.2 | $ 26.9 | $ 22.7 | $ 23.0 | $ 16.6 | $ 14.2 | $ 14.4 | $ 8.4 | $ 0.8 | [1] | $ 1.9 | [1] | ||||||||
| Previously acquired ownership interest | 50.00% | 5.00% | 50.00% | 50.00% | 5.00% | ||||||||||||||||
| Percentage of ownership | 100.00% | ||||||||||||||||||||
|
|||||||||||||||||||||
| X | ||||||||||
|
- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Investments In Unconsolidated Affiliates (Equity Method Investment Summarized Financial Information, Statement of Operations) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
||||||||
| Investments In Unconsolidated Affiliates [Abstract] | ||||||||||
| Operating revenue | $ 984.9 | [1] | $ 1,050.5 | [1],[2] | $ 703.6 | [2] | ||||
| Operating expenses | 914.6 | [1] | 953.4 | [1],[2] | 637.1 | [2] | ||||
| Net income | $ 70.4 | [1] | $ 96.0 | [1],[2] | $ 65.6 | [2] | ||||
|
||||||||||
| X | ||||||||||
|
- Definition
Equity Method Investment Summarized Financial Information Operating Expenses No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity. No definition available.
|
|
Investments In Unconsolidated Affiliates (Equity Method Investment Summarized Financial Information, Balance Sheet) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
||||||
|---|---|---|---|---|---|---|---|---|
| Investments In Unconsolidated Affiliates [Abstract] | ||||||||
| Current assets | $ 115.9 | [1] | $ 153.0 | [1],[2] | ||||
| Long-term assets | 723.0 | [1] | 684.9 | [1],[2] | ||||
| Current liabilities | (116.3) | [1] | (121.4) | [1],[2] | ||||
| Long-term liabilities | (33.8) | [1] | (30.3) | [1],[2] | ||||
| Net assets | $ 688.8 | [1] | $ 686.2 | [1],[2] | ||||
|
||||||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of current assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of current liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of noncurrent assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of noncurrent liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Measurement (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Feb. 28, 2010
Collbran [Member]
|
Dec. 31, 2010
Level 3 [Member]
Collbran [Member]
|
Sep. 30, 2010
Level 3 [Member]
Collbran [Member]
|
Mar. 31, 2010
Level 3 [Member]
Collbran [Member]
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
| Additional acquired ownership interest | 5.00% | 5.00% | ||||
| Fair value of contingent consideration | $ 100.8 | $ 0 | $ 1.0 | |||
| Transfer into and out of Levels 1 and 2 | 0 | 0 | ||||
| Contingent consideration fair value adjustment | $ 1.0 | |||||
| X | ||||||||||
|
- Definition
Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the amount of any change, including any differences arising upon settlement, recognized during the reporting period in the value of a liability, arising from an item of contingent consideration, assumed in a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of the transfers of assets or liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Measurement (Financial Instruments Carried At Fair Value) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Current Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | $ 5.2 | [1] | $ 1.9 | [1] | ||||||||
|
Current Assets [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | [1] | [1] | ||||||||||
|
Long-Term Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | 6.3 | [2] | 1.4 | [2] | ||||||||
|
Current Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | (26.4) | [3] | (26.0) | [3] | ||||||||
|
Current Liabilities [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Interest Rate Derivative Liabilities, at Fair Value | (16.1) | [3] | (17.0) | [3] | ||||||||
|
Long-Term Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | (25.2) | [4] | (40.4) | [4] | ||||||||
|
Long-Term Liabilities [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Interest Rate Derivative Liabilities, at Fair Value | (5.0) | [4] | (9.9) | [4] | ||||||||
|
Level 1 [Member] | Current Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | [1] | [1] | ||||||||||
|
Level 1 [Member] | Current Assets [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | [1] | [1] | ||||||||||
|
Level 1 [Member] | Long-Term Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | [2] | [2] | ||||||||||
|
Level 1 [Member] | Current Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | [3] | [3] | ||||||||||
|
Level 1 [Member] | Current Liabilities [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Interest Rate Derivative Liabilities, at Fair Value | [3] | [3] | ||||||||||
|
Level 1 [Member] | Long-Term Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | [4] | [4] | ||||||||||
|
Level 1 [Member] | Long-Term Liabilities [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Interest Rate Derivative Liabilities, at Fair Value | [4] | [4] | ||||||||||
|
Level 2 [Member] | Current Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | 4.1 | [1] | 1.6 | [1] | ||||||||
|
Level 2 [Member] | Current Assets [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | [1] | [1] | ||||||||||
|
Level 2 [Member] | Long-Term Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | 5.3 | [2] | 1.1 | [2] | ||||||||
|
Level 2 [Member] | Current Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | (25.7) | [3] | (25.9) | [3] | ||||||||
|
Level 2 [Member] | Current Liabilities [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Interest Rate Derivative Liabilities, at Fair Value | (16.1) | [3] | (17.0) | [3] | ||||||||
|
Level 2 [Member] | Long-Term Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | (24.9) | [4] | (39.9) | [4] | ||||||||
|
Level 2 [Member] | Long-Term Liabilities [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Interest Rate Derivative Liabilities, at Fair Value | (5.0) | [4] | (9.9) | [4] | ||||||||
|
Level 3 [Member] | Current Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | 1.1 | [1] | 0.3 | [1] | ||||||||
|
Level 3 [Member] | Current Assets [Member] | Interest Rate Derivatives [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | [1] | [1] | ||||||||||
|
Level 3 [Member] | Long-Term Assets [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Assets | 1.0 | [2] | 0.3 | [2] | ||||||||
|
Level 3 [Member] | Current Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | (0.7) | [3] | (0.1) | [3] | ||||||||
|
Level 3 [Member] | Long-Term Liabilities [Member] | Commodity Derivative Instruments [Member]
|
||||||||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||
| Derivative Financial Instruments, Liabilities, Fair Value Disclosure | $ (0.3) | [4] | $ (0.5) | [4] | ||||||||
|
||||||||||||
| X | ||||||||||
|
- Definition
Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Measurement (Condensed Consolidated Balance Sheets For Derivative Financial Instruments) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
||||||||||
|
Current Assets [Member]
|
||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||
| Beginning balance | $ 0.3 | [1] | $ 0.4 | $ 0.3 | ||||||||
| Net realized and unrealized gains (losses) included in earnings | 1.4 | [1] | 2.0 | 0.2 | ||||||||
| Transfers into Level 3 | [1],[2] | [2] | ||||||||||
| Transfers out of Level 3 | [2] | |||||||||||
| Net transfers (out) of Level 3 | (0.1) | [2] | ||||||||||
| Settlements | (0.6) | [1] | ||||||||||
| Purchases, Issuances and Settlements, net | (2.1) | |||||||||||
| Ending balance | 1.1 | [1] | 0.3 | [1] | 0.4 | |||||||
| Net unrealized gains (losses) still held included in earnings | 1.1 | [1],[3] | 0.3 | [2] | 0.4 | [3] | ||||||
|
Long-Term Assets [Member]
|
||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||
| Beginning balance | 0.3 | [1] | 0.2 | 1.7 | ||||||||
| Net realized and unrealized gains (losses) included in earnings | 0.8 | [1] | 1.3 | (1.5) | ||||||||
| Transfers into Level 3 | [1],[2] | [2] | ||||||||||
| Transfers out of Level 3 | (0.1) | [1],[2] | [2] | |||||||||
| Purchases, Issuances and Settlements, net | (1.2) | |||||||||||
| Ending balance | 1.0 | [1] | 0.3 | [1] | 0.2 | |||||||
| Net unrealized gains (losses) still held included in earnings | 0.7 | [1],[3] | 0.1 | [2] | (0.1) | [3] | ||||||
|
Current Liabilities [Member]
|
||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||
| Net unrealized gains (losses) still held included in earnings | (0.7) | [1],[3] | ||||||||||
| Beginning Balance | (0.1) | [1] | (0.8) | |||||||||
| Net realized and unrealized gains (losses) included in earnings | (0.8) | [1] | (0.3) | (3.9) | ||||||||
| Transfers into level 3 (liability) | [1],[2] | [2] | ||||||||||
| Transfers out of level 3 (liability) | [2] | |||||||||||
| Settlements (liability) | 0.2 | [1] | ||||||||||
| Purchases, Issuances and Settlements net (liability) | 1.0 | 3.1 | ||||||||||
| Net unrealized (losses) gains still held included in earnings (liability) | (0.1) | [2] | (1.8) | [3] | ||||||||
| Ending Balance | (0.7) | [1] | (0.1) | [1] | (0.8) | |||||||
|
Long-Term Liabilities [Member]
|
||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||
| Net unrealized gains (losses) still held included in earnings | 0.1 | [1],[3] | ||||||||||
| Beginning Balance | (0.5) | [1] | (0.4) | |||||||||
| Net realized and unrealized gains (losses) included in earnings | 0.2 | [1] | (0.1) | (0.4) | ||||||||
| Transfers into level 3 (liability) | [1],[2] | [2] | ||||||||||
| Transfers out of level 3 (liability) | [2] | |||||||||||
| Net unrealized (losses) gains still held included in earnings (liability) | (0.1) | [2] | (0.4) | [3] | ||||||||
| Ending Balance | $ (0.3) | [1] | $ (0.5) | [1] | $ (0.4) | |||||||
|
||||||||||||
| X | ||||||||||
|
- Definition
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Still Held Included in Earnings. No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Still Held Included in Earnings. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Transfers into liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Transfers out of liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to assets measured at fair value on a recurring basis using unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Settlements that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Transfers into assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents [net] transfers in to and out of assets measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Transfers out of assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Settlements that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Estimated Fair Value Of Financial Instruments (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Estimated Fair Value Of Financial Instruments [Abstract] | ||
| Carrying value of outstanding balances | $ 497.0 | $ 398.0 |
| Fair value of outstanding balances | 497.0 | 388.9 |
| Senior notes carrying values | $ 250.0 | $ 250.0 |
| Senior notes percentage | 3.25% | 3.25% |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of the amount outstanding under the credit facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Debt (Narrative) (Details) (USD $)
|
12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Nov. 10, 2011
Credit Agreement [Member]
|
Dec. 31, 2011
Credit Agreement [Member]
|
Dec. 31, 2010
Credit Agreement [Member]
|
Nov. 10, 2011
Prior Credit Agreement [Member]
|
Dec. 31, 2011
Other Agreements [Member]
|
Dec. 31, 2011
Midstream Energy Business [Member]
|
Sep. 30, 2010
Senior Notes, 3.25% Due 2015 [Member]
|
Dec. 31, 2011
Senior Notes, 3.25% Due 2015 [Member]
|
Dec. 31, 2010
Senior Notes, 3.25% Due 2015 [Member]
|
|
| Line of Credit Facility [Line Items] | ||||||||||||
| Revolving credit facility | $ 1,000,000,000 | $ 850,000,000 | ||||||||||
| Line of credit facility, maturity date | November 10, 2016 | November 10, 2016 | June 21, 2012 | |||||||||
| Letters of credit issued | 1,100,000 | |||||||||||
| Letters of credit outstanding | 32,100,000 | 10,000,000 | ||||||||||
| Unused capacity under the revolving credit facility | 501,900,000 | |||||||||||
| Unused capacity available for general working capital | 279,500,000 | |||||||||||
| Debt issuance costs | 3,900,000 | |||||||||||
| Line of credit facility interest rate description | (1) LIBOR, plus an applicable margin ranging from 0.85% to 1.65% depending on our credit rating; or (2) the higher of Wells Fargo Bank's prime rate plus an applicable margin ranging from 0% to 0.65% depending on our credit rating, the Federal Funds rate plus 0.50% or the LIBOR Market Index rate plus 1%. | |||||||||||
| Annual facility fee description | The revolving credit facility incurs an annual facility fee of 0.15% to 0.35% depending on our credit rating. | |||||||||||
| Leverage ratio | not more than 5.0 to 1.0 | not more than 5.5 to 1.0 | ||||||||||
| Senior notes issued | 250,000,000 | 250,000,000 | 250,000,000 | |||||||||
| Senior notes percentage | 3.25% | 3.25% | 3.25% | 3.25% | ||||||||
| Maturity date | October 1, 2015 | October 1, 2015 | ||||||||||
| Proceeds from debt | 1,524,000,000 | 868,200,000 | 237,000,000 | 247,700,000 | ||||||||
| Underwriters' fees | 1,500,000 | |||||||||||
| Related expenses | 600,000 | |||||||||||
| Unamortized discount | $ 200,000 | $ 200,000 | $ 200,000 | $ 200,000 | ||||||||
| First payment date | April 1, 2011 | |||||||||||
| Credit facility, collateral fee | which we pay a fee of 0.50% per annum. | |||||||||||
| Letters of credit issued fee | any letters of credit issued on this facility will incur a fee of 1.75% per annum | |||||||||||
| X | ||||||||||
|
- Definition
Debt Instruments, Maturity Date No definition available.
|
| X | ||||||||||
|
- Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
|
- Definition
Letters of Credit, Issued, Fee Description No definition available.
|
| X | ||||||||||
|
- Definition
Leverage Ratio No definition available.
|
| X | ||||||||||
|
- Definition
Date that the debt agreement requires the first payment to be made, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the fee that accompanies borrowing money under the debt instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Represents the charge against earnings during the period for commitment fees and debt issuance expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
|
- Definition
The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer. No definition available.
|
| X | ||||||||||
|
- Definition
Description of fees associated with providing collateral for the credit facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the fees for amounts available, but unused under the credit facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Debt (Schedule Of Long-Term Debt) (Details) (USD $)
|
0 Months Ended | 12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2011
Senior Notes, 3.25% Due 2015 [Member]
|
Dec. 31, 2010
Senior Notes, 3.25% Due 2015 [Member]
|
Sep. 30, 2010
Senior Notes, 3.25% Due 2015 [Member]
|
Nov. 10, 2011
Credit Agreement [Member]
|
Dec. 31, 2011
Credit Agreement [Member]
|
Dec. 31, 2010
Credit Agreement [Member]
|
Dec. 31, 2011
Minimum [Member]
|
Dec. 31, 2011
Maximum [Member]
|
||||||||
| Line of Credit Facility [Line Items] | |||||||||||||||||
| Revolving credit facility | $ 497,000,000 | $ 398,000,000 | $ 497,000,000 | [1] | $ 398,000,000 | [1] | |||||||||||
| Senior notes issued | 250,000,000 | 250,000,000 | 250,000,000 | ||||||||||||||
| Unamortized discount | (200,000) | (200,000) | (200,000) | (200,000) | |||||||||||||
| Total long-term debt | 746,800,000 | 647,800,000 | [2] | 497,000,000 | |||||||||||||
| Weighted-average variable interest rate | 1.69% | 1.14% | |||||||||||||||
| Net effective interest rate | 4.86% | 4.86% | 4.28% | 2.94% | 5.19% | ||||||||||||
| Line of credit facility, maturity date | November 10, 2016 | November 10, 2016 | |||||||||||||||
| Interest payable semi-annually | 3.25% | 3.25% | 3.25% | 3.25% | |||||||||||||
| Maturity date | October 1, 2015 | October 1, 2015 | |||||||||||||||
| Notional Amount of Interest Rate Derivatives | $ 450,000,000 | ||||||||||||||||
|
|||||||||||||||||
| X | ||||||||||
|
- Definition
Debt Instruments, Maturity Date No definition available.
|
| X | ||||||||||
|
- Definition
The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding by type or by instrument at that time. No definition available.
|
| X | ||||||||||
|
- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Debt (Future Maturities Of Long-Term Debt) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|||
|---|---|---|---|---|---|
| Debt [Abstract] | |||||
| 2012 | |||||
| 2013 | |||||
| 2014 | |||||
| 2015 | 250.0 | ||||
| Thereafter | 497.0 | ||||
| Unamortized discount | (0.2) | ||||
| Total long-term debt | $ 746.8 | $ 647.8 | [1] | ||
|
|||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt maturities after year five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt maturing in year five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt maturing in year four following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt maturing in year three following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt maturing in year two following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Risk Management And Hedging Activities (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2011
Southeast Texas [Member]
|
Jan. 31, 2011
Southeast Texas [Member]
|
Dec. 31, 2011
Interest Rate Swap [Member]
|
Dec. 31, 2011
Interest Rate Swap [Member]
|
Dec. 31, 2011
Forward Starting Interest Rate Swap [Member]
|
Dec. 31, 2011
Maximum [Member]
|
Dec. 31, 2011
Minimum [Member]
|
Dec. 31, 2011
Other Agreements [Member]
|
|
| Derivative [Line Items] | |||||||||
| Mark to market interest rate swaps | $ 25.0 | ||||||||
| Percentage of ownership in Southeast Texas | 33.33% | 33.33% | |||||||
| Business acquisition purchase price | 100.8 | 150.0 | |||||||
| Interest rate swap agreements designated as cash flow hedging instruments | 425.0 | ||||||||
| Interest rate swap agreements reprice every ninety days | 275.0 | ||||||||
| Interest rate swap agreements reprice every thirty days | 175.0 | ||||||||
| Effective fixed rates lower range | 2.94% | 2.15% | |||||||
| Effective fixed rates higher range | 5.19% | 2.598% | |||||||
| Reduce in net liability due to offset of contract | 46.0 | ||||||||
| Interest rate swaps instruments net liability position | 21.1 | ||||||||
| Derivative net liability position | 50.9 | ||||||||
| Letters of credit outstanding | 10.0 | ||||||||
| Outstanding parental guarantees | 70.0 | ||||||||
| Derivative, Notional Amount | 80.0 | 25.0 | |||||||
| Notional amount of interest rate derivatives | 450.0 | 450.0 | 195.0 | ||||||
| Fixed rate obligation | $ 150.0 | ||||||||
| X | ||||||||||
|
- Definition
The amount of floating rate obligation converting to fixed rate obligation through June 2014. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of interest rate swap agreements that reprice prospectively approximately every 90 days No definition available.
|
| X | ||||||||||
|
- Definition
The amount of interest rate swap agreements that reprice prospectively approximately every 30 days No definition available.
|
| X | ||||||||||
|
- Definition
Parental guarantees issued and outstanding in favor of certain counterparties to commodity derivative instruments. No definition available.
|
| X | ||||||||||
|
- Definition
Monetary amount specified by the derivative(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
High end of the range of fixed interest rates when a range is presented for a group of interest rate derivatives. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Low end of the range of fixed interest rates when a range is presented for a group of interest rate derivatives. No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
|
- Definition
Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate notional amount of all interest rate derivatives not designated as hedging instruments. Notional amount refers to the monetary amount specified in the interest rate derivative contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Risk Management And Hedging Activities (Schedule Of Cash Flow Hedges Included In Accumulated Other Comprehensive Income (Loss)) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|||
|---|---|---|---|---|---|
| Derivative [Line Items] | |||||
| Total AOCI | $ (21.2) | $ (27.7) | [1] | ||
|
Cash Flow Hedge [Member]
|
|||||
| Derivative [Line Items] | |||||
| Total AOCI | (21.2) | (27.7) | |||
|
Cash Flow Hedge [Member] | Interest Rate Contract [Member]
|
|||||
| Derivative [Line Items] | |||||
| Net deferred losses in AOCI | (19.4) | (27.4) | |||
|
Cash Flow Hedge [Member] | Commodity Contract [Member]
|
|||||
| Derivative [Line Items] | |||||
| Net deferred losses in AOCI | $ (1.8) | $ (0.3) | |||
|
|||||
| X | ||||||||||
|
- Definition
Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Risk Management And Hedging Activities (Schedule Of Designated And Non-Designated Derivative Instruments In Statement Of Financial Position, Fair Value) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Derivative [Line Items] | ||
| Unrealized gains on derivative instruments - current | $ 5.2 | $ 1.9 |
| Unrealized gains on derivative instruments - long-term | 6.3 | 1.4 |
| Unrealized losses on derivative instruments - current | (42.5) | (43.0) |
| Unrealized losses on derivative instruments - long-term | (30.2) | (50.3) |
|
Nondesignated [Member] | Interest Rate Swap [Member]
|
||
| Derivative [Line Items] | ||
| Unrealized losses on derivative instruments - current | (0.4) | (4.8) |
| Unrealized losses on derivative instruments - long-term | (4.5) | |
| Derivative liabilities, fair value, total | (0.4) | (9.3) |
|
Nondesignated [Member] | Commodity Contract [Member]
|
||
| Derivative [Line Items] | ||
| Unrealized gains on derivative instruments - current | 5.2 | 1.9 |
| Unrealized gains on derivative instruments - long-term | 6.3 | 1.4 |
| Derivative assets not designated as hedging instruments, fair value, total | 11.5 | 3.3 |
| Unrealized losses on derivative instruments - current | (26.4) | (26.0) |
| Unrealized losses on derivative instruments - long-term | (25.2) | (40.4) |
| Derivative liabilities, fair value, total | (51.6) | (66.4) |
|
Designated As Hedging Instrument [Member] | Interest Rate Swap [Member]
|
||
| Derivative [Line Items] | ||
| Unrealized losses on derivative instruments - current | (15.7) | (12.2) |
| Unrealized losses on derivative instruments - long-term | (5.0) | (5.4) |
| Derivative liabilities, fair value, total | $ (20.7) | $ (17.6) |
| X | ||||||||||
|
- Definition
Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum as of the balance sheet date of the (a) fair values of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and (b) the carrying amounts of the liabilities arising from financial instruments or contracts used to mitigate a specified risk (hedge), and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of after one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Risk Management And Hedging Activities (Schedule Of Derivatives Accounted For As Cash Flow Hedges) (Details) (USD $)
|
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
||||||||
|
Interest Rate Swap [Member]
|
|||||||||
| Derivative [Line Items] | |||||||||
| Gain (Loss) Recognized in AOCI on Derivatives - Effective Portion | $ (12,400.000) | $ (18,700.000) | |||||||
| Gain (Loss) Reclassified From AOCI to Earnings-Effective Portion | (20,400.000) | (22,400.000) | [1] | ||||||
| Gain (Loss) Recognized in Income on Derivatives-Ineffective Portion and Amount Excluded From Effectiveness Testing | (200.000) | [1],[2] | |||||||
| Deferred Losses in AOCI Expected to be Reclassified into Earnings Over the Next 12 Months | (12,100.000) | ||||||||
|
Commodity Contract [Member]
|
|||||||||
| Derivative [Line Items] | |||||||||
| Gain (Loss) Recognized in AOCI on Derivatives - Effective Portion | (900.000) | ||||||||
| Gain (Loss) Reclassified From AOCI to Earnings-Effective Portion | (300.000) | (500.000) | [1],[3] | ||||||
| Gain (Loss) Recognized in Income on Derivatives-Ineffective Portion and Amount Excluded From Effectiveness Testing | [2],[3] | ||||||||
|
|||||||||
| X | ||||||||||
|
- Definition
The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Risk Management And Hedging Activities (Schedule Of Changes In Derivative Instruments Not Designated As Hedging Instruments) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
|
Commodity Contract [Member] | Affiliates [Member]
|
|||
| Derivative [Line Items] | |||
| Realized | $ (1.2) | $ (0.7) | $ (0.2) |
| Unrealized | 0.5 | (0.5) | (3.3) |
| (Losses) gains from commodity derivative activity, net - affiliates | (0.7) | (1.2) | (3.5) |
|
Third Party [Member] | Commodity Contract [Member]
|
|||
| Derivative [Line Items] | |||
| Realized | (28.5) | (2.9) | 16.8 |
| Unrealized | 22.5 | (4.4) | (79.1) |
| (Losses) gains from commodity derivative activity, net - affiliates | (6.0) | (7.3) | (62.3) |
|
Third Party [Member] | Interest Rate Swap [Member]
|
|||
| Derivative [Line Items] | |||
| Realized | (4.6) | (1.5) | |
| Unrealized | 5.2 | 3.1 | |
| (Losses) gains from commodity derivative activity, net - affiliates | $ 0.6 | $ 1.6 | |
| X | ||||||||||
|
- Definition
Realized Gains (Losses) From Commodity Derivatives Activity No definition available.
|
| X | ||||||||||
|
- Definition
Realized Gains Losses From Interest Rate Derivatives Activity No definition available.
|
| X | ||||||||||
|
- Definition
Net Increase or Decrease in the fair value of the derivative or group of derivatives included in earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Risk Management And Hedging Activities (Schedule Of Net Long Or Short Positions Expected To Be Realized) (Details)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
|
Natural Gas Liquids [Member]
|
||
| Derivative [Line Items] | ||
| 2011 | (73,190) | |
| 2012 | (478,236) | |
|
Natural Gas [Member]
|
||
| Derivative [Line Items] | ||
| 2011 | (687,500) | |
| 2012 | (1,196,000) | (366,000) |
| 2013 | (365,000) | (365,000) |
| 2014 | (365,000) | (365,000) |
|
Crude Oil [Member]
|
||
| Derivative [Line Items] | ||
| 2011 | (998,554) | |
| 2012 | (695,792) | (839,358) |
| 2013 | (941,323) | (748,250) |
| 2014 | (547,500) | (547,500) |
| 2015 | (365,000) | (182,500) |
| 2016 | (183,000) | |
| X | ||||||||||
|
- Definition
Net Long or Short Positions Expected to be Realized Year Five No definition available.
|
| X | ||||||||||
|
- Definition
Net Long or Short Positions Expected to be Realized Year Four No definition available.
|
| X | ||||||||||
|
- Definition
Net Long or Short Positions Expected to be Realized Year One No definition available.
|
| X | ||||||||||
|
- Definition
Net Long or Short Positions Expected to be Realized Year Six No definition available.
|
| X | ||||||||||
|
- Definition
Net Long or Short Positions Expected to be Realized Year Three No definition available.
|
| X | ||||||||||
|
- Definition
Net Long or Short Positions Expected to be Realized Year Two No definition available.
|
| X | ||||||||||
|
- Details
|
|
Partnership Equity And Distributions (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Feb. 28, 2009
|
Feb. 29, 2008
|
Dec. 31, 2011
days
|
Aug. 17, 2011
|
Mar. 31, 2011
|
Feb. 28, 2011
|
Dec. 31, 2010
|
Nov. 30, 2010
|
Aug. 31, 2010
|
May 26, 2010
|
Dec. 31, 2009
|
Nov. 30, 2009
|
Apr. 30, 2009
Class D Units [Member]
|
Feb. 28, 2009
Subordinated Units [Member]
|
Feb. 29, 2008
Subordinated Units [Member]
|
Dec. 31, 2011
General Partner [Member]
|
Apr. 30, 2009
DCP Midstream, LLC [Member]
|
Dec. 31, 2011
Distribution Stage First [Member]
|
Dec. 31, 2011
Distribution Stage Second [Member]
|
Dec. 31, 2011
Distribution Stage Third [Member]
|
Dec. 31, 2011
Distribution Stage Thereafter [Member]
|
Mar. 31, 2011
Limited Partners Capital Account Units Issued [Member]
|
Nov. 30, 2010
Limited Partners Capital Account Units Issued [Member]
|
Aug. 31, 2010
Limited Partners Capital Account Units Issued [Member]
|
|
| Partnership Equity And Distribution [Line Items] | ||||||||||||||||||||||||
| Partnership deadline for distributions | 45 | |||||||||||||||||||||||
| Maximum aggregate offering price | $ 150 | $ 1,500 | ||||||||||||||||||||||
| Common unitholders, units sold | 761,285 | |||||||||||||||||||||||
| Common unitholders, units issued | 44,848,703 | 3,596,636 | 8,399 | 44,848,703 | 2,875,000 | 2,990,000 | 375,000 | 2,500,000 | 3,500,000 | |||||||||||||||
| Common units per unit | $ 40.55 | $ 34.96 | $ 32.57 | $ 25.40 | ||||||||||||||||||||
| Net proceeds | 30.2 | 69.5 | 49.7 | 139.7 | 96.2 | 93.1 | ||||||||||||||||||
| Commissions and offering costs | $ 1.2 | |||||||||||||||||||||||
| General partner ownership interest | 1.00% | |||||||||||||||||||||||
| Limited partner ownership interest | 1.00% | 25.10% | ||||||||||||||||||||||
| Percentage of subordinated units converted | 50.00% | 50.00% | ||||||||||||||||||||||
| Subordinated units converted | 3,571,429 | 3,571,428 | ||||||||||||||||||||||
| Distribution of available cash per unit | $ 0.35 | |||||||||||||||||||||||
| Pro rata interest | 13.00% | 23.00% | 48.00% | |||||||||||||||||||||
| General Partner pro rata interest per unit | $ 0.4025 | $ 0.4375 | $ 0.525 | |||||||||||||||||||||
| X | ||||||||||
|
- Definition
Cash Distribution Per Unit No definition available.
|
| X | ||||||||||
|
- Definition
Commissions and offering costs No definition available.
|
| X | ||||||||||
|
- Definition
Deadline To Distribute Available Cash To Unitholders No definition available.
|
| X | ||||||||||
|
- Definition
General partner ownership interest No definition available.
|
| X | ||||||||||
|
- Definition
Limited partner ownership interest No definition available.
|
| X | ||||||||||
|
- Definition
Limited Partners Capital Account Price Of Units Issued No definition available.
|
| X | ||||||||||
|
- Definition
Partners Capital Account Max Aggregate Offering Price No definition available.
|
| X | ||||||||||
|
- Definition
Partners Capital Account Units Converted Percentage No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Percent Of Cash Distribution To General Partner No definition available.
|
| X | ||||||||||
|
- Definition
The number of limited partner units issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of capital contributed by the limited partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of the distribution per unit of limited partner interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of units converted into shares of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Partnership Equity And Distributions (Cash Distribution) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Partnership Equity And Distribution [Line Items] | |||
| Total Cash Distribution | $ (132.4) | $ (101.9) | $ (85.3) |
|
November 14, 2011 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6400 | ||
| Total Cash Distribution | 34.9 | ||
|
August 12, 2011 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6325 | ||
| Total Cash Distribution | 34.0 | ||
|
May 13, 2011 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6250 | ||
| Total Cash Distribution | 33.4 | ||
|
February 14, 2011 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6175 | ||
| Total Cash Distribution | 30.0 | ||
|
November 12, 2010 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6100 | ||
| Total Cash Distribution | 27.4 | ||
|
August 13, 2010 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6100 | ||
| Total Cash Distribution | 25.3 | ||
|
May 14, 2010 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6000 | ||
| Total Cash Distribution | 24.6 | ||
|
February 12, 2010 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6000 | ||
| Total Cash Distribution | 24.6 | ||
|
November 13, 2009 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6000 | ||
| Total Cash Distribution | 22.6 | ||
|
August 14, 2009 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6000 | ||
| Total Cash Distribution | 22.6 | ||
|
May 15, 2009 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6000 | ||
| Total Cash Distribution | 20.1 | ||
|
February 13, 2009 [Member]
|
|||
| Partnership Equity And Distribution [Line Items] | |||
| Per Unit Distribution | $ 0.6000 | ||
| Total Cash Distribution | $ 20.1 | ||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Total distributions to each class of partners (i.e., general, limited and preferred partners). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The distribution amount per share for all classes of units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Equity-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Feb. 18, 2011
|
Dec. 31, 2011
Performance Units [Member]
years
|
Dec. 31, 2010
Performance Units [Member]
|
Dec. 31, 2009
Performance Units [Member]
|
Dec. 31, 2011
Phantom Units [Member]
|
Dec. 31, 2010
Phantom Units [Member]
|
Dec. 31, 2009
Phantom Units [Member]
|
Dec. 31, 2011
Restricted Phantom Units [Member]
years
|
Dec. 31, 2010
Restricted Phantom Units [Member]
|
Dec. 31, 2009
Restricted Phantom Units [Member]
|
Dec. 31, 2011
Minimum [Member]
Performance Units [Member]
|
Dec. 31, 2011
Maximum [Member]
Performance Units [Member]
|
Dec. 31, 2012
Expected To Vest 2012 [Member]
Performance Units [Member]
|
Dec. 31, 2012
Expected To Vest 2012 [Member]
Restricted Phantom Units [Member]
|
Dec. 31, 2013
Expected To Vest 2013 [Member]
Performance Units [Member]
|
Dec. 31, 2013
Expected To Vest 2013 [Member]
Restricted Phantom Units [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||
| Limited partner units | 850,000 | |||||||||||||||||||
| Reclassification of share-based compensation liability to additional paid-in capital | $ 1.9 | |||||||||||||||||||
| Number of Performance Units to be vested over three years. | 0.00% | 200.00% | ||||||||||||||||||
| Expected to vest | 19,047 | [1] | 14,340 | 11,641 | 6,125 | 7,406 | 8,215 | |||||||||||||
| Unrecognized compensation expense | $ 0.4 | $ 0.2 | ||||||||||||||||||
| Weighted average period for the recognition of the unrecognized compensation costs, in years | 2 | 1.0 | ||||||||||||||||||
| Granted, Units | 10,580 | 16,630 | 52,450 | 4,000 | 5,200 | 16,000 | 10,580 | 16,630 | 52,450 | |||||||||||
| Estimated Forfeiture Rate | 30.00% | 30.00% | 22.00% | 30.00% | 21.00% | |||||||||||||||
|
||||||||||||||||||||
| X | ||||||||||
|
- Definition
The estimated forfeiture rate used to arrive at the total units expected to vest. No definition available.
|
| X | ||||||||||
|
- Definition
The amount previously recorded as a share-based compensation liability that is reclassified to additional paid-in capital as a result of a modification that changed the award's classification from a liability to equity. No definition available.
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments outstanding as of the balance sheet date that is expected to vest. No definition available.
|
| X | ||||||||||
|
- Definition
The range of the number of units that will ultimately vest depending on the achievement of specified performance targets over the the performance period. No definition available.
|
| X | ||||||||||
|
- Definition
As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Equity-Based Compensation (Total Compensation Cost For Equity-Based Arrangements) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation cost | $ 6.6 | $ 2.8 | $ 2.2 |
|
Performance Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation cost | 4.2 | 1.2 | 1.2 |
|
Phantom Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation cost | 0.2 | 0.2 | 0.4 |
|
Restricted Phantom Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation cost | $ 2.2 | $ 1.4 | $ 0.6 |
| X | ||||||||||
|
- Definition
Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Equity-Based Compensation (Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award) (Details) (USD $)
|
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Dec. 31, 2008
|
||||||
|
Performance Units [Member]
|
|||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Outstanding, Units | 27,210 | 67,350 | 67,140 | 52,020 | |||||
| Outstanding, Grant Date Weighted Average Price Per Unit | $ 35.69 | $ 15.42 | $ 15.18 | $ 34.23 | |||||
| Outstanding, Measurement Date Price Per Unit | 47.47 | ||||||||
| Granted, Units | 10,580 | 16,630 | 52,450 | ||||||
| Granted, Grant Date Weighted Average Price Per Unit | $ 41.80 | $ 31.80 | $ 10.05 | ||||||
| Vested, Units | (50,720) | [1] | (14,215) | (37,330) | |||||
| Vested, Grant Date Weighted Average Price Per Unit | $ 10.05 | [1] | $ 33.44 | $ 34.51 | |||||
| Forfeited, Units | (2,205) | ||||||||
| Forfeited, Grant Date Weighted Average Price Per Unit | $ 15.61 | ||||||||
| Expected to vest | 19,047 | [2] | |||||||
| Expected To Vest, Grant Date Weighted Average Price Per Unit | $ 35.69 | [2] | |||||||
| Expected To Vest, Measurement Date Price Per Unit | $ 47.47 | [2] | |||||||
| Percentage of Units Vested | 199.00% | ||||||||
| Performance estimate for units granted | 100.00% | ||||||||
| Estimated Forfeiture Rate | 30.00% | 30.00% | |||||||
| Expected forfeiture rate used to calculate restricted phantom units which expected to vest | 30.00% | 30.00% | |||||||
|
Phantom Units [Member]
|
|||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Outstanding, Units | 13,698 | ||||||||
| Outstanding, Grant Date Weighted Average Price Per Unit | $ 24.05 | ||||||||
| Outstanding, Measurement Date Price Per Unit | |||||||||
| Granted, Units | 4,000 | 5,200 | 16,000 | ||||||
| Granted, Grant Date Weighted Average Price Per Unit | $ 41.80 | $ 24.05 | $ 10.05 | ||||||
| Vested, Units | (4,000) | (5,200) | (29,698) | ||||||
| Vested, Grant Date Weighted Average Price Per Unit | $ 41.80 | $ 31.80 | $ 16.51 | ||||||
|
Restricted Phantom Units [Member]
|
|||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Outstanding, Units | 19,330 | 67,350 | 67,140 | 14,690 | |||||
| Outstanding, Grant Date Weighted Average Price Per Unit | $ 37.27 | $ 15.42 | $ 15.18 | $ 33.52 | |||||
| Outstanding, Measurement Date Price Per Unit | 47.47 | ||||||||
| Granted, Units | 10,580 | 16,630 | 52,450 | ||||||
| Granted, Grant Date Weighted Average Price Per Unit | $ 41.80 | $ 31.80 | $ 10.05 | ||||||
| Vested, Units | (58,600) | (14,215) | |||||||
| Vested, Grant Date Weighted Average Price Per Unit | $ 12.97 | $ 33.44 | |||||||
| Forfeited, Units | (2,205) | ||||||||
| Forfeited, Grant Date Weighted Average Price Per Unit | $ 15.61 | ||||||||
| Expected to vest | 14,340 | ||||||||
| Expected To Vest, Grant Date Weighted Average Price Per Unit | $ 37.53 | ||||||||
| Expected To Vest, Measurement Date Price Per Unit | $ 47.47 | ||||||||
| Estimated Forfeiture Rate | 22.00% | 30.00% | 21.00% | ||||||
| Expected forfeiture rate used to calculate restricted phantom units which expected to vest | 22.00% | 30.00% | 21.00% | ||||||
|
|||||||||
| X | ||||||||||
|
- Definition
The estimated forfeiture rate used to arrive at the total units expected to vest. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of units vested. No definition available.
|
| X | ||||||||||
|
- Definition
The estimated percentage of units that will meet specified performance targets used to calculate the total units expected to vest No definition available.
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments outstanding as of the balance sheet date that is expected to vest. No definition available.
|
| X | ||||||||||
|
- Definition
Share based compensation arrangement by share based payment award equity instruments other than options expected to vest measurement date price. No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Weighted Average Grant Date Fair Value No definition available.
|
| X | ||||||||||
|
- Definition
Share based compensation arrangement by share based payment award equity instruments other than options measurement date price. No definition available.
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Equity-Based Compensation (Fair Value Of Units Vested And The Unit-Based Liabilities Paid For Unit Based Awards) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Mar. 31, 2011
|
Feb. 28, 2011
|
Dec. 31, 2010
|
Nov. 30, 2010
|
Aug. 31, 2010
|
Dec. 31, 2009
|
Nov. 30, 2009
|
Dec. 31, 2011
Performance Units [Member]
|
Dec. 31, 2010
Performance Units [Member]
|
Dec. 31, 2009
Performance Units [Member]
|
Dec. 31, 2011
Phantom Units [Member]
|
Dec. 31, 2010
Phantom Units [Member]
|
Dec. 31, 2009
Phantom Units [Member]
|
Sep. 30, 2011
Phantom Units [Member]
|
Dec. 31, 2011
Restricted Phantom Units [Member]
|
Dec. 31, 2010
Restricted Phantom Units [Member]
|
Dec. 31, 2009
Paid In 2010 [Member]
Performance Units [Member]
|
Dec. 31, 2010
Vested In 2009 [Member]
Performance Units [Member]
|
Dec. 31, 2010
Paid In 2011 [Member]
Restricted Phantom Units [Member]
|
||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||||||||||||||||
| Units, Vested | 50,720 | [1] | 14,215 | 37,330 | 4,000 | 5,200 | 29,698 | 58,600 | 14,215 | 22,860 | 14,215 | ||||||||||||||||||||||||
| Fair value of units vested | $ 5.30 | [2] | $ 1.10 | [2] | $ 0.20 | [3] | $ 0.20 | [3] | $ 0.50 | [3] | $ 2.50 | [4] | $ 0.50 | ||||||||||||||||||||||
| Unit-based liabilities paid | $ 0.8 | [2] | $ 0.3 | $ 0.5 | $ 0.6 | [4] | $ 0.6 | ||||||||||||||||||||||||||||
| Units, Issued | 44,848,703 | 3,596,636 | 8,399 | 44,848,703 | 2,875,000 | 2,990,000 | 375,000 | 2,500,000 | 4,000 | ||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
The number of limited partner units issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The liabilities paid during the accounting period for equity-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 0 Months Ended | 12 Months Ended | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Apr. 18, 2011
Marysville Acquisition [Member]
|
Dec. 31, 2011
Marysville Acquisition [Member]
|
Jan. 04, 2011
Marysville Acquisition [Member]
|
Dec. 30, 2010
Marysville Acquisition [Member]
|
Dec. 31, 2011
Gross Receipts [Member]
|
Dec. 31, 2011
Tax Surcharge [Member]
|
Dec. 31, 2011
Taxable Income [Member]
|
Dec. 31, 2011
Michigan [Member]
Marysville Acquisition [Member]
|
|
| Income Taxes [Line Items] | |||||||||||
| Deferred tax balance | $ 0 | $ 0 | |||||||||
| Current, federal income tax expense | (29.3) | ||||||||||
| Deferred tax liabilities from acquisition | 35.0 | ||||||||||
| Income Taxes Paid | 29.3 | 29.3 | 0.3 | ||||||||
| Taxes Payable, Current | 5.4 | 35.0 | |||||||||
| Texas Margin Tax Rate | 1.00% | ||||||||||
| Michigan Business Tax | 0.80% | 21.99% | 4.95% | ||||||||
| Current, state income tax expense | (0.5) | (0.4) | (0.5) | 0.3 | |||||||
| Deferred, federal income tax benefit (expense) | 29.3 | ||||||||||
| Deferred, state income tax benefit (expense) | (0.1) | 0.1 | (0.1) | ||||||||
| Total income tax expense | (0.6) | (0.3) | (0.6) | ||||||||
| Net long-term deferred tax liabilities | $ 1.8 | $ 1.6 | |||||||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Michigan business tax. No definition available.
|
| X | ||||||||||
|
- Definition
Texas margin tax rate. No definition available.
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of total income tax expense for the period comprised of the increase (decrease) during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of total income tax expense for the period comprised of the increase (decrease) in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Represents the noncurrent portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A noncurrent taxable temporary difference is a difference between the tax basis and the carrying amount of a noncurrent asset or liability in the financial statements prepared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cumulative amount of the estimated future tax effects attributable to other temporary differences not otherwise specified in this taxonomy that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GAAP but not for tax purposes, which will reverse in future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Net Income Or Loss Per Limited Partner Unit (Details)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Net Income Or Loss Per Limited Partner Unit [Abstract] | ||
| Dilutive effect of unit based awards, equivalent units | 64,286 | 0 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Commitments And Contingent Liabilities (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| 2012 | $ 12.5 | ||
| 2013 | 9.3 | ||
| 2014 | 4.3 | ||
| 2015 | 2.2 | ||
| 2016 | 1.1 | ||
| Thereafter | 1.0 | ||
| Total minimum rental payments | 30.4 | ||
| Proposed penalty assessment | 0.7 | ||
| Consolidated rental expense | $ 13.1 | $ 12.8 | $ 12.1 |
|
Dart Energy Corporation [Member]
|
|||
| Percentage of equity interest acquired | 90.00% | ||
|
Prospect Street Energy, LLC [Member]
|
|||
| Percentage of equity interest acquired | 5.00% | ||
|
EE Group, LLC [Member]
|
|||
| Percentage of equity interest acquired | 100.00% | ||
|
Marysville Acquisition [Member]
|
|||
| Percentage of equity interest acquired | 5.00% | ||
| X | ||||||||||
|
- Definition
Proposed penalty assessment No definition available.
|
| X | ||||||||||
|
- Definition
In a business combination achieved in stages, this element represents the acquisition-date percentage of equity in the acquiree held by the acquirer immediately before the acquisition date. No definition available.
|
| X | ||||||||||
|
- Definition
The total of future contractually required payments on leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within one year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the fifth year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the fourth year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the third year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the second year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due after the fifth year from the balance sheet date on leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Business Segments (Narrative) (Details)
|
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2011
Colorado [Member]
|
Dec. 31, 2011
Discovery [Member]
|
Jan. 03, 2012
East Texas System [Member]
|
Dec. 31, 2011
East Texas System [Member]
|
Apr. 30, 2009
East Texas System [Member]
|
Jul. 31, 2007
East Texas System [Member]
|
Dec. 31, 2011
Southeast Texas [Member]
|
|
| Segment Reporting Information [Line Items] | ||||||||
| Ownership interest percentage | 40.00% | 33.33% | ||||||
| Ownership interest percentage | 75.00% | 49.90% | 50.10% | 25.10% | 25.00% | |||
| Number of owned and operated rail terminals | 6 | |||||||
| Number of owned marine import terminals | 1 | |||||||
| Number of leased marine terminals | 1 | |||||||
| Number of pipeline and several open access pipeline terminals | 1 | |||||||
| X | ||||||||||
|
- Definition
Leased Marine Terminals No definition available.
|
| X | ||||||||||
|
- Definition
Owned And Operated Rail Terminals No definition available.
|
| X | ||||||||||
|
- Definition
Owned Marine Import Terminals No definition available.
|
| X | ||||||||||
|
- Definition
Pipeline Terminals No definition available.
|
| X | ||||||||||
|
- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Business Segments (Business Segments) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||||||||||
| Total operating revenues | $ 387.2 | $ 383.3 | $ 374.2 | $ 425.1 | $ 348.4 | $ 239.9 | $ 277.5 | $ 403.7 | $ 1,569.8 | $ 1,269.5 | $ 942.4 | |||||||||||||||||||
| Gross margin | 340.0 | [1] | 236.9 | [1] | 166.2 | [1] | ||||||||||||||||||||||||
| Operating and maintenance expense | (105.4) | (79.8) | (69.7) | |||||||||||||||||||||||||||
| Depreciation and amortization expense | (81.0) | (73.7) | (64.9) | |||||||||||||||||||||||||||
| General and administrative expense | (37.3) | (33.7) | (32.3) | |||||||||||||||||||||||||||
| Other income- affiliates | 3.0 | |||||||||||||||||||||||||||||
| Earnings from unconsolidated affiliates | 36.9 | 38.2 | 26.9 | |||||||||||||||||||||||||||
| Other operating income | 0.5 | 4.0 | ||||||||||||||||||||||||||||
| Step acquisition - equity interest re-measurement gain | 9.1 | |||||||||||||||||||||||||||||
| Interest income | 0.3 | |||||||||||||||||||||||||||||
| Interest expense | (33.9) | (29.1) | (28.3) | |||||||||||||||||||||||||||
| Income tax expense | (0.6) | [2] | (0.3) | [2] | (0.6) | [2] | ||||||||||||||||||||||||
| Net income (loss) | 4.5 | 65.9 | 51.2 | (2.4) | 9.1 | 3.3 | 26.8 | 32.4 | 119.2 | 71.6 | (2.4) | |||||||||||||||||||
| Net income attributable to noncontrolling interests | (6.0) | 0.4 | (9.7) | (3.5) | (4.8) | (3.3) | (1.0) | (0.1) | (18.8) | (9.2) | (8.3) | |||||||||||||||||||
| Net income (loss) attributable to partners | (1.5) | 66.3 | 41.5 | (5.9) | 4.3 | 25.8 | 32.3 | 100.4 | 62.4 | (10.7) | ||||||||||||||||||||
| Non-cash derivative mark-to-market | 20.5 | [3] | (4.0) | [3] | (83.8) | [3] | ||||||||||||||||||||||||
| Capital expenditures | 104.2 | 50.7 | 164.8 | |||||||||||||||||||||||||||
| Acquisitions net of cash acquired | 174.8 | 203.3 | 44.5 | |||||||||||||||||||||||||||
| Investments in unconsolidated affiliates | 15.1 | 28.6 | 7.0 | |||||||||||||||||||||||||||
| Long-term assets | 1,663.7 | 1,581.2 | 1,663.7 | 1,581.2 | 1,354.6 | |||||||||||||||||||||||||
| Current assets | 239.9 | 232.0 | [4] | 239.9 | 232.0 | [4] | 197.7 | |||||||||||||||||||||||
| Total assets | 1,903.6 | 1,813.2 | [4] | 1,903.6 | 1,813.2 | [4] | 1,552.3 | |||||||||||||||||||||||
|
Natural Gas Services [Member]
|
||||||||||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||||||||||
| Total operating revenues | 881.8 | 778.7 | 583.7 | |||||||||||||||||||||||||||
| Gross margin | 236.9 | [1] | 195.1 | [1] | 109.7 | [1] | ||||||||||||||||||||||||
| Operating and maintenance expense | (74.4) | (63.5) | (58.2) | |||||||||||||||||||||||||||
| Depreciation and amortization expense | (69.9) | (69.1) | (61.9) | |||||||||||||||||||||||||||
| Earnings from unconsolidated affiliates | 36.9 | 37.4 | 25.0 | |||||||||||||||||||||||||||
| Other operating income | 1.0 | |||||||||||||||||||||||||||||
| Net income (loss) | 129.5 | 100.9 | 14.6 | |||||||||||||||||||||||||||
| Net income attributable to noncontrolling interests | (18.8) | (9.2) | (8.3) | |||||||||||||||||||||||||||
| Net income (loss) attributable to partners | 110.7 | 91.7 | 6.3 | |||||||||||||||||||||||||||
| Non-cash derivative mark-to-market | 22.4 | [3] | (4.4) | [3] | (84.2) | [3] | ||||||||||||||||||||||||
| Capital expenditures | 90.3 | 38.6 | 164.3 | |||||||||||||||||||||||||||
| Acquisitions net of cash acquired | 145.2 | 44.5 | ||||||||||||||||||||||||||||
| Investments in unconsolidated affiliates | 15.1 | 28.6 | 7.0 | |||||||||||||||||||||||||||
| Long-term assets | 1,295.4 | 1,253.7 | 1,295.4 | 1,253.7 | 1,256.0 | |||||||||||||||||||||||||
|
NGL Logistics [Member]
|
||||||||||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||||||||||
| Total operating revenues | 56.6 | 17.6 | 10.5 | |||||||||||||||||||||||||||
| Gross margin | 52.0 | [1] | 12.9 | [1] | 7.6 | [1] | ||||||||||||||||||||||||
| Operating and maintenance expense | (15.9) | (3.7) | (1.2) | |||||||||||||||||||||||||||
| Depreciation and amortization expense | (8.2) | (2.6) | (1.4) | |||||||||||||||||||||||||||
| Earnings from unconsolidated affiliates | 0.8 | 1.9 | ||||||||||||||||||||||||||||
| Other operating income | 0.5 | |||||||||||||||||||||||||||||
| Step acquisition - equity interest re-measurement gain | 9.1 | |||||||||||||||||||||||||||||
| Net income (loss) | 28.4 | 16.5 | 6.9 | |||||||||||||||||||||||||||
| Net income (loss) attributable to partners | 28.4 | 16.5 | 6.9 | |||||||||||||||||||||||||||
| Capital expenditures | 9.3 | 11.5 | ||||||||||||||||||||||||||||
| Acquisitions net of cash acquired | 29.6 | 135.5 | ||||||||||||||||||||||||||||
| Long-term assets | 250.1 | [5] | 221.7 | [5] | 250.1 | [5] | 221.7 | [5] | 32.3 | [5] | ||||||||||||||||||||
|
Wholesale Propane Logistics [Member]
|
||||||||||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||||||||||
| Total operating revenues | 633.6 | 473.2 | 348.2 | |||||||||||||||||||||||||||
| Gross margin | 51.1 | [1] | 28.9 | [1] | 48.9 | [1] | ||||||||||||||||||||||||
| Operating and maintenance expense | (15.1) | (12.6) | (10.3) | |||||||||||||||||||||||||||
| Depreciation and amortization expense | (2.9) | (1.9) | (1.4) | |||||||||||||||||||||||||||
| Other operating income | 3.0 | |||||||||||||||||||||||||||||
| Net income (loss) | 33.1 | 17.4 | 37.2 | |||||||||||||||||||||||||||
| Net income (loss) attributable to partners | 33.1 | 17.4 | 37.2 | |||||||||||||||||||||||||||
| Non-cash derivative mark-to-market | 0.3 | [3] | (1.0) | [3] | 0.8 | [3] | ||||||||||||||||||||||||
| Capital expenditures | 4.6 | 0.6 | 0.5 | |||||||||||||||||||||||||||
| Acquisitions net of cash acquired | 67.8 | |||||||||||||||||||||||||||||
| Long-term assets | 104.2 | [5] | 101.7 | [5] | 104.2 | [5] | 101.7 | [5] | 53.2 | [5] | ||||||||||||||||||||
|
Other [Member]
|
||||||||||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||||||||||
| Depreciation and amortization expense | (0.1) | (0.2) | ||||||||||||||||||||||||||||
| General and administrative expense | (37.3) | (33.7) | (32.3) | |||||||||||||||||||||||||||
| Interest income | 0.3 | |||||||||||||||||||||||||||||
| Interest expense | (33.9) | (29.1) | (28.3) | |||||||||||||||||||||||||||
| Income tax expense | (0.6) | [2] | (0.3) | [2] | (0.6) | [2] | ||||||||||||||||||||||||
| Net income (loss) | (71.8) | (63.2) | (61.1) | |||||||||||||||||||||||||||
| Net income (loss) attributable to partners | (71.8) | (63.2) | (61.1) | |||||||||||||||||||||||||||
| Non-cash derivative mark-to-market | (2.2) | [3] | 1.4 | [3] | (0.4) | [3] | ||||||||||||||||||||||||
| Long-term assets | 14.0 | [6] | 4.1 | [6] | 14.0 | [6] | 4.1 | [6] | 13.1 | [6] | ||||||||||||||||||||
|
Eliminations [Member]
|
||||||||||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||||||||||
| Total operating revenues | (2.2) | [7] | ||||||||||||||||||||||||||||
| Gross margin | [1],[7] | |||||||||||||||||||||||||||||
| Operating and maintenance expense | [7] | |||||||||||||||||||||||||||||
| Depreciation and amortization expense | [7] | |||||||||||||||||||||||||||||
| General and administrative expense | [7] | |||||||||||||||||||||||||||||
| Earnings from unconsolidated affiliates | [7] | |||||||||||||||||||||||||||||
| Other operating income | [7] | |||||||||||||||||||||||||||||
| Interest expense | [7] | |||||||||||||||||||||||||||||
| Income tax expense | [2],[7] | |||||||||||||||||||||||||||||
| Net income (loss) | [7] | |||||||||||||||||||||||||||||
| Net income attributable to noncontrolling interests | [7] | |||||||||||||||||||||||||||||
| Net income (loss) attributable to partners | [7] | |||||||||||||||||||||||||||||
| Non-cash derivative mark-to-market | [3],[7] | |||||||||||||||||||||||||||||
| Capital expenditures | [7] | |||||||||||||||||||||||||||||
| Acquisitions net of cash acquired | [7] | |||||||||||||||||||||||||||||
| Investments in unconsolidated affiliates | [7] | |||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
General And Administrative Expense Total No definition available.
|
| X | ||||||||||
|
- Definition
Investments in unconsolidated affiliates. No definition available.
|
| X | ||||||||||
|
- Definition
Other Income Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
Payment To Acquire Businesses, Net Of Cash Acquired No definition available.
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest generated from day to day operating activities of the business. This element represents a revenue generating activity and is therefore gross (before any related cost of revenue items). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. No definition available.
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Discloses the amount of operating expense for the period for routine plant maintenance and repairs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Supplemental Cash Flow Information (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Supplemental Cash Flow Information [Abstract] | |||
| Cash paid for interest, net of amounts capitalized | $ 17.2 | $ 7.8 | $ 9.0 |
| Cash paid for income taxes, net of income tax refunds | 29.9 | 0.5 | 1.5 |
| Property, plant and equipment acquired with accounts payable | 14.2 | 6.3 | 4.1 |
| Other non-cash additions of property, plant and equipment | 1.4 | 2.0 | 1.3 |
| Accounts payable related to equity issuance costs | (0.2) | 0.2 | |
| Acquisition related contingent consideration | 1.0 | ||
| Non-cash contribution from noncontrolling interests | $ 0.5 | ||
| X | ||||||||||
|
- Definition
Accounts payable related to equity issuance costs in non cash investing and financing activities. No definition available.
|
| X | ||||||||||
|
- Definition
Business Acquisition Contingent Consideration No definition available.
|
| X | ||||||||||
|
- Definition
Non-cash contribution from noncontrolling interests. No definition available.
|
| X | ||||||||||
|
- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The fair value of assets acquired in noncash investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Quarterly Financial Data (Schedule Of Quarterly Consolidated Results Of Operations) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Quarterly Financial Data [Abstract] | |||||||||||
| Total operating revenues | $ 387.2 | $ 383.3 | $ 374.2 | $ 425.1 | $ 348.4 | $ 239.9 | $ 277.5 | $ 403.7 | $ 1,569.8 | $ 1,269.5 | $ 942.4 |
| Operating (loss) income | 5.3 | 64.7 | 49.6 | (2.8) | 6.8 | 2.7 | 27.8 | 25.5 | 116.8 | 62.8 | (0.7) |
| Net (loss) income | 4.5 | 65.9 | 51.2 | (2.4) | 9.1 | 3.3 | 26.8 | 32.4 | 119.2 | 71.6 | (2.4) |
| Net (income) loss attributable to noncontrolling interests | (6.0) | 0.4 | (9.7) | (3.5) | (4.8) | (3.3) | (1.0) | (0.1) | (18.8) | (9.2) | (8.3) |
| Net (loss) income attributable to partners | (1.5) | 66.3 | 41.5 | (5.9) | 4.3 | 25.8 | 32.3 | 100.4 | 62.4 | (10.7) | |
| Limited partners' interest in net (loss) income | $ (8.2) | $ 59.5 | $ 35.3 | $ (11.4) | $ (4.5) | $ (8.2) | $ 21.8 | $ 22.0 | $ 75.2 | $ 31.1 | $ (30.8) |
| Net income (loss) per limited partner unit - basic | $ (0.19) | $ 1.35 | $ 0.80 | $ (0.28) | $ (0.12) | $ (0.23) | $ 0.63 | $ 0.64 | $ 1.73 | $ 0.86 | $ (0.99) |
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate amount of net income allocated to limited partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net income (loss) allocated to each outstanding limited partnership unit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Supplementary Information - Condensed Consolidating Financial Information (Narrative) (Details) (Subsidiary Issuer [Member])
|
12 Months Ended |
|---|---|
|
Dec. 31, 2011
|
|
|
Subsidiary Issuer [Member]
|
|
| Ownership percentage | 100.00% |
| X | ||||||||||
|
- Definition
The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Supplementary Information - Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheets) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Dec. 31, 2008
|
|||
|---|---|---|---|---|---|---|---|
| Cash and cash equivalents | $ 6.7 | $ 6.7 | [1] | $ 2.1 | $ 61.9 | ||
| Accounts receivable | 161.4 | 151.0 | [1] | ||||
| Inventories | 64.7 | 64.1 | [1] | ||||
| Other | 7.1 | 10.2 | [1] | ||||
| Total current assets | 239.9 | 232.0 | [1] | 197.7 | |||
| Property, plant and equipment, net | 1,181.8 | 1,097.1 | [1] | ||||
| Goodwill and intangible assets, net | 255.8 | 258.6 | [1] | ||||
| Investments in unconsolidated affiliates | 208.7 | 216.9 | [1] | ||||
| Other long-term assets | 17.4 | 8.6 | [1] | ||||
| Total assets | 1,903.6 | 1,813.2 | [1] | 1,552.3 | |||
| Accounts payable and other current liabilities | 269.2 | 211.2 | [1] | ||||
| Long-term debt | 746.8 | 647.8 | [1] | ||||
| Other long-term liabilities | 46.7 | 103.4 | [1] | ||||
| Total liabilities | 1,062.7 | 962.4 | [1] | ||||
| Commitments and contingent liabilities | [1] | ||||||
| Predecessor equity | 112.6 | [1] | |||||
| Net equity | 649.7 | 545.8 | [1] | ||||
| Accumulated other comprehensive loss | (21.2) | (27.7) | [1] | ||||
| Total partners' equity | 628.5 | 630.7 | [1] | ||||
| Noncontrolling interests | 212.4 | 220.1 | [1] | ||||
| Total equity | 840.9 | 850.8 | [1] | 676.2 | 635.3 | ||
| Total liabilities and equity | 1,903.6 | 1,813.2 | [1] | ||||
|
DCP Midstream Partners, LP [Member]
|
|||||||
| Advances receivable - consolidated subsidiaries | 370.7 | 333.4 | [1] | ||||
| Investments in consolidated subsidiaries | 257.8 | 297.5 | [1] | ||||
| Total assets | 628.5 | 630.9 | [1] | ||||
| Accounts payable and other current liabilities | 0.2 | [1] | |||||
| Total liabilities | 0.2 | [1] | |||||
| Commitments and contingent liabilities | [1] | ||||||
| Net equity | 628.5 | 630.7 | [1] | ||||
| Total partners' equity | 628.5 | 630.7 | [1] | ||||
| Total equity | 628.5 | 630.7 | [1] | ||||
| Total liabilities and equity | 628.5 | 630.9 | [1] | ||||
|
Subsidiary Issuer [Member]
|
|||||||
| Cash and cash equivalents | 3.6 | 1.5 | [1] | 1.6 | 26.6 | ||
| Total current assets | 3.6 | 1.5 | [1] | ||||
| Advances receivable - consolidated subsidiaries | 597.2 | 534.7 | [1] | ||||
| Investments in consolidated subsidiaries | 421.9 | 436.2 | [1] | ||||
| Other long-term assets | 5.6 | 2.3 | [1] | ||||
| Total assets | 1,028.3 | 974.7 | [1] | ||||
| Accounts payable and other current liabilities | 18.7 | 19.5 | [1] | ||||
| Long-term debt | 746.8 | 647.8 | [1] | ||||
| Other long-term liabilities | 5.0 | 9.9 | [1] | ||||
| Total liabilities | 770.5 | 677.2 | [1] | ||||
| Commitments and contingent liabilities | [1] | ||||||
| Net equity | 277.2 | 324.9 | [1] | ||||
| Accumulated other comprehensive loss | (19.4) | (27.4) | [1] | ||||
| Total partners' equity | 257.8 | 297.5 | [1] | ||||
| Total equity | 257.8 | 297.5 | [1] | ||||
| Total liabilities and equity | 1,028.3 | 974.7 | [1] | ||||
|
Non-Guarantor Subsidiaries [Member]
|
|||||||
| Cash and cash equivalents | 5.5 | 6.7 | [1] | 1.3 | 35.6 | ||
| Accounts receivable | 161.4 | 151.0 | [1] | ||||
| Inventories | 64.7 | 64.1 | [1] | ||||
| Other | 7.1 | 10.2 | [1] | ||||
| Total current assets | 238.7 | 232.0 | [1] | ||||
| Property, plant and equipment, net | 1,181.8 | 1,097.1 | [1] | ||||
| Goodwill and intangible assets, net | 255.8 | 258.6 | [1] | ||||
| Investments in unconsolidated affiliates | 208.7 | 216.9 | [1] | ||||
| Other long-term assets | 11.8 | 6.3 | [1] | ||||
| Total assets | 1,896.8 | 1,810.9 | [1] | ||||
| Accounts payable and other current liabilities | 252.9 | 193.0 | [1] | ||||
| Advances payable - consolidated subsidiaries | 967.9 | 868.1 | [1] | ||||
| Other long-term liabilities | 41.7 | 93.5 | [1] | ||||
| Total liabilities | 1,262.5 | 1,154.6 | [1] | ||||
| Commitments and contingent liabilities | [1] | ||||||
| Predecessor equity | 112.6 | [1] | |||||
| Net equity | 423.7 | 323.9 | [1] | ||||
| Accumulated other comprehensive loss | (1.8) | (0.3) | [1] | ||||
| Total partners' equity | 421.9 | 436.2 | [1] | ||||
| Noncontrolling interests | 212.4 | 220.1 | [1] | ||||
| Total equity | 634.3 | 656.3 | [1] | ||||
| Total liabilities and equity | 1,896.8 | 1,810.9 | [1] | ||||
|
Consolidating Adjustments [Member]
|
|||||||
| Cash and cash equivalents | (2.4) | (1.5) | [1] | (0.8) | (0.3) | ||
| Total current assets | (2.4) | (1.5) | [1] | ||||
| Advances receivable - consolidated subsidiaries | (967.9) | (868.1) | [1] | ||||
| Investments in consolidated subsidiaries | (679.7) | (733.7) | [1] | ||||
| Total assets | (1,650.0) | (1,603.3) | [1] | ||||
| Accounts payable and other current liabilities | (2.4) | (1.5) | [1] | ||||
| Advances payable - consolidated subsidiaries | (967.9) | (868.1) | [1] | ||||
| Total liabilities | (970.3) | (869.6) | [1] | ||||
| Commitments and contingent liabilities | [1] | ||||||
| Net equity | (679.7) | (733.7) | [1] | ||||
| Total partners' equity | (679.7) | (733.7) | [1] | ||||
| Total equity | (679.7) | (733.7) | [1] | ||||
| Total liabilities and equity | $ (1,650.0) | $ (1,603.3) | [1] | ||||
|
|||||||
| X | ||||||||||
|
- Definition
Accounts Receivable Net Current Total No definition available.
|
| X | ||||||||||
|
- Definition
Assets Current Including Investments In Unconsolidated Affiliates And Unrealized Gains On Derivative Instruments No definition available.
|
| X | ||||||||||
|
- Definition
Goodwill and Intangible Assets, Net No definition available.
|
| X | ||||||||||
|
- Definition
Investments In Consolidated Subsidiaries No definition available.
|
| X | ||||||||||
|
- Definition
Other Long Term Assets No definition available.
|
| X | ||||||||||
|
- Definition
Other Long Term Liabilities Include Unrealized Losses on Derivative Instruments Total No definition available.
|
| X | ||||||||||
|
- Definition
Partners' Equity Net No definition available.
|
| X | ||||||||||
|
- Definition
Predecessor equity No definition available.
|
| X | ||||||||||
|
- Definition
Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, and other costs not separately disclosed in the balance sheet that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. No definition available.
|
| X | ||||||||||
|
- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due after one year (or one business cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all Liabilities and Stockholders' Equity items (or Partners' Capital, as applicable), including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of ownership interest of different classes of partners in limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Supplementary Information - Condensed Consolidating Financial Information (Condensed Consolidating Statements Of Operations) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
||||||
| Sales of natural gas, propane, NGLs and condensate | $ 1,413.3 | $ 1,162.7 | $ 913.0 | |||||||||||||
| Transportation, processing and other | 163.2 | 115.3 | 95.2 | |||||||||||||
| Losses from commodity derivative activity, net | (6.7) | (8.5) | (65.8) | |||||||||||||
| Total operating revenues | 387.2 | 383.3 | 374.2 | 425.1 | 348.4 | 239.9 | 277.5 | 403.7 | 1,569.8 | 1,269.5 | 942.4 | |||||
| Purchases of natural gas, propane and NGLs | (1,229.8) | (1,032.6) | 776.2 | |||||||||||||
| Operating and maintenance expense | 105.4 | 79.8 | 69.7 | |||||||||||||
| Depreciation and amortization expense | 81.0 | 73.7 | 64.9 | |||||||||||||
| General and administrative expense | 37.3 | 33.7 | 32.3 | |||||||||||||
| Step acquisition - equity interest re-measurement gain | (9.1) | |||||||||||||||
| Other, net | (0.5) | (4.0) | ||||||||||||||
| Other income - affiliates | (3.0) | |||||||||||||||
| Total operating costs and expenses | 1,453.0 | 1,206.7 | 943.1 | |||||||||||||
| Operating (loss) income | 5.3 | 64.7 | 49.6 | (2.8) | 6.8 | 2.7 | 27.8 | 25.5 | 116.8 | 62.8 | (0.7) | |||||
| Interest expense, net | (33.9) | (29.1) | (28.0) | |||||||||||||
| Earnings from unconsolidated affiliates | 36.9 | 38.2 | 26.9 | |||||||||||||
| Income (loss) before income taxes | 119.8 | 71.9 | (1.8) | |||||||||||||
| Income tax expense | (0.6) | [1] | (0.3) | [1] | (0.6) | [1] | ||||||||||
| Net income (loss) | 4.5 | 65.9 | 51.2 | (2.4) | 9.1 | 3.3 | 26.8 | 32.4 | 119.2 | 71.6 | (2.4) | |||||
| Net income attributable to noncontrolling interests | 6.0 | (0.4) | 9.7 | 3.5 | 4.8 | 3.3 | 1.0 | 0.1 | 18.8 | 9.2 | 8.3 | |||||
| Net income (loss) attributable to partners | (1.5) | 66.3 | 41.5 | (5.9) | 4.3 | 25.8 | 32.3 | 100.4 | 62.4 | (10.7) | ||||||
|
DCP Midstream Partners, LP [Member]
|
||||||||||||||||
| Earnings (losses) from consolidated subsidiaries | 100.4 | 62.4 | (10.7) | |||||||||||||
| Income (loss) before income taxes | 100.4 | 62.4 | (10.7) | |||||||||||||
| Net income (loss) | 100.4 | 62.4 | (10.7) | |||||||||||||
| Net income (loss) attributable to partners | 100.4 | 62.4 | (10.7) | |||||||||||||
|
Subsidiary Issuer [Member]
|
||||||||||||||||
| General and administrative expense | 0.2 | 0.1 | ||||||||||||||
| Total operating costs and expenses | 0.2 | 0.1 | ||||||||||||||
| Operating (loss) income | (0.2) | (0.1) | ||||||||||||||
| Interest expense, net | (33.5) | (28.8) | (27.8) | |||||||||||||
| Earnings (losses) from consolidated subsidiaries | 133.9 | 91.4 | 17.2 | |||||||||||||
| Income (loss) before income taxes | 100.4 | 62.4 | (10.7) | |||||||||||||
| Net income (loss) | 100.4 | 62.4 | (10.7) | |||||||||||||
| Net income (loss) attributable to partners | 100.4 | 62.4 | (10.7) | |||||||||||||
|
Non-Guarantor Subsidiaries [Member]
|
||||||||||||||||
| Sales of natural gas, propane, NGLs and condensate | 1,413.3 | 1,162.7 | 913.0 | |||||||||||||
| Transportation, processing and other | 163.2 | 115.3 | 95.2 | |||||||||||||
| Losses from commodity derivative activity, net | (6.7) | (8.5) | (65.8) | |||||||||||||
| Total operating revenues | 1,569.8 | 1,269.5 | 942.4 | |||||||||||||
| Purchases of natural gas, propane and NGLs | (1,229.8) | (1,032.6) | 776.2 | |||||||||||||
| Operating and maintenance expense | 105.4 | 79.8 | 69.7 | |||||||||||||
| Depreciation and amortization expense | 81.0 | 73.7 | 64.9 | |||||||||||||
| General and administrative expense | 37.3 | 33.5 | 32.2 | |||||||||||||
| Step acquisition - equity interest re-measurement gain | (9.1) | |||||||||||||||
| Other, net | (0.5) | (4.0) | ||||||||||||||
| Total operating costs and expenses | 1,453.0 | 1,206.5 | 943.0 | |||||||||||||
| Operating (loss) income | 116.8 | 63.0 | (0.6) | |||||||||||||
| Interest expense, net | (0.4) | (0.3) | (0.2) | |||||||||||||
| Earnings from unconsolidated affiliates | 36.9 | 38.2 | 26.9 | |||||||||||||
| Income (loss) before income taxes | 153.3 | 100.9 | 26.1 | |||||||||||||
| Income tax expense | (0.6) | (0.3) | (0.6) | |||||||||||||
| Net income (loss) | 152.7 | 100.6 | 25.5 | |||||||||||||
| Net income attributable to noncontrolling interests | 18.8 | 9.2 | 8.3 | |||||||||||||
| Net income (loss) attributable to partners | 133.9 | 91.4 | 17.2 | |||||||||||||
|
Consolidating Adjustments [Member]
|
||||||||||||||||
| Earnings (losses) from consolidated subsidiaries | (234.3) | (153.8) | (6.5) | |||||||||||||
| Income (loss) before income taxes | (234.3) | (153.8) | (6.5) | |||||||||||||
| Net income (loss) | (234.3) | (153.8) | (6.5) | |||||||||||||
| Net income (loss) attributable to partners | $ (234.3) | $ (153.8) | $ (6.5) | |||||||||||||
|
||||||||||||||||
| X | ||||||||||
|
- Definition
Consolidated General And Administrative Expense No definition available.
|
| X | ||||||||||
|
- Definition
Gains loss from commodity derivative activity net No definition available.
|
| X | ||||||||||
|
- Definition
Gas Gathering Transportation Marketing And Processing Revenue Total No definition available.
|
| X | ||||||||||
|
- Definition
Income (Loss) from Consolidated Subsidiaries No definition available.
|
| X | ||||||||||
|
- Definition
Natural Gas Propane NGLs Condensate Purchases Total No definition available.
|
| X | ||||||||||
|
- Definition
Natural Gas Propane NGLs Condensate Revenue Total No definition available.
|
| X | ||||||||||
|
- Definition
Other Income Affiliates No definition available.
|
| X | ||||||||||
|
- Definition
In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total costs of sales and operating expenses for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net amount of operating interest income (expense). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. No definition available.
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Discloses the amount of operating expense for the period for routine plant maintenance and repairs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Supplementary Information - Condensed Consolidating Financial Information (Condensed Consolidating Statements Of Cash Flows) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|||||
| Net cash (used in) provided by operating activities | $ 204.1 | $ 139.7 | $ 117.3 | ||||
| Capital expenditures | (104.2) | (50.7) | (164.8) | ||||
| Acquisitions, net of cash acquired | (174.8) | (203.3) | (44.5) | ||||
| Investments in unconsolidated affiliates | (15.1) | (28.6) | (7.0) | ||||
| Return of investment from unconsolidated affiliates | 14.9 | 1.2 | 2.2 | ||||
| Proceeds from sales of assets | 5.2 | 3.4 | 0.3 | ||||
| Purchases of available-for-sale securities | (1.1) | ||||||
| Proceeds from sales of available-for-sale securities | 10.1 | 51.1 | |||||
| Net cash provided by (used in) investing activities | (274.0) | (267.9) | (163.8) | ||||
| Proceeds from debt | 1,524.0 | 868.2 | 237.0 | ||||
| Payments of debt | (1,425.0) | (833.4) | (280.5) | ||||
| Payment of deferred financing costs | (4.2) | (2.1) | |||||
| Proceeds from issuance of common units, net of offering costs | 169.7 | 189.3 | 69.5 | ||||
| Excess purchase price over acquired assets | (35.7) | (0.8) | |||||
| Distributions to unitholders and general partner | (132.4) | (101.9) | (85.3) | ||||
| Distributions to noncontrolling interests | (44.8) | (25.6) | (27.0) | ||||
| Contributions from noncontrolling interests | 18.3 | 14.3 | 78.7 | ||||
| Contributions from DCP Midstream, LLC | 0.6 | 0.7 | |||||
| Net change in advances to predecessor from DCP Midstream, LLC | 27.4 | (6.4) | |||||
| Purchase of additional interest in a subsidiary | (3.5) | ||||||
| Net Cash Provided by (Used in) Financing Activities | 69.9 | 132.8 | (13.3) | ||||
| Net change in cash and cash equivalents | 4.6 | (59.8) | |||||
| Cash and cash equivalents, beginning of period | 6.7 | [1] | 2.1 | 61.9 | |||
| Cash and cash equivalents, end of period | 6.7 | 6.7 | [1] | 2.1 | |||
|
DCP Midstream Partners, LP [Member]
|
|||||||
| Net cash (used in) provided by operating activities | (37.3) | (87.4) | 15.8 | ||||
| Proceeds from issuance of common units, net of offering costs | 169.7 | 189.3 | 69.5 | ||||
| Distributions to unitholders and general partner | (132.4) | (101.9) | (85.3) | ||||
| Net Cash Provided by (Used in) Financing Activities | 37.3 | 87.4 | (15.8) | ||||
|
Subsidiary Issuer [Member]
|
|||||||
| Net cash (used in) provided by operating activities | (92.7) | (42.9) | (31.5) | ||||
| Purchases of available-for-sale securities | (1.1) | ||||||
| Proceeds from sales of available-for-sale securities | 10.1 | 51.1 | |||||
| Net cash provided by (used in) investing activities | 10.1 | 50.0 | |||||
| Proceeds from debt | 1,524.0 | 868.2 | 237.0 | ||||
| Payments of debt | (1,425.0) | (833.4) | (280.5) | ||||
| Payment of deferred financing costs | (4.2) | (2.1) | |||||
| Net Cash Provided by (Used in) Financing Activities | 94.8 | 32.7 | (43.5) | ||||
| Net change in cash and cash equivalents | 2.1 | (0.1) | (25.0) | ||||
| Cash and cash equivalents, beginning of period | 1.5 | [1] | 1.6 | 26.6 | |||
| Cash and cash equivalents, end of period | 3.6 | 1.5 | [1] | 1.6 | |||
|
Non-Guarantor Subsidiaries [Member]
|
|||||||
| Net cash (used in) provided by operating activities | 335.0 | 270.7 | 133.5 | ||||
| Capital expenditures | (104.2) | (50.7) | (164.8) | ||||
| Acquisitions, net of cash acquired | (174.8) | (203.3) | (44.5) | ||||
| Investments in unconsolidated affiliates | (15.1) | (28.6) | (7.0) | ||||
| Return of investment from unconsolidated affiliates | 14.9 | 1.2 | 2.2 | ||||
| Proceeds from sales of assets | 5.2 | 3.4 | 0.3 | ||||
| Net cash provided by (used in) investing activities | (274.0) | (278.0) | (213.8) | ||||
| Excess purchase price over acquired assets | (35.7) | ||||||
| Distributions to noncontrolling interests | (44.8) | (25.6) | (27.0) | ||||
| Contributions from noncontrolling interests | 18.3 | 13.8 | 78.7 | ||||
| Contributions from DCP Midstream, LLC | 0.6 | 0.7 | |||||
| Net change in advances to predecessor from DCP Midstream, LLC | 27.4 | (6.4) | |||||
| Purchase of additional interest in a subsidiary | (3.5) | ||||||
| Net Cash Provided by (Used in) Financing Activities | (62.2) | 12.7 | 46.0 | ||||
| Net change in cash and cash equivalents | (1.2) | 5.4 | (34.3) | ||||
| Cash and cash equivalents, beginning of period | 6.7 | [1] | 1.3 | 35.6 | |||
| Cash and cash equivalents, end of period | 5.5 | 6.7 | [1] | 1.3 | |||
|
Consolidating Adjustments [Member]
|
|||||||
| Net cash (used in) provided by operating activities | (0.9) | (0.7) | (0.5) | ||||
| Net change in cash and cash equivalents | (0.9) | (0.7) | (0.5) | ||||
| Cash and cash equivalents, beginning of period | (1.5) | [1] | (0.8) | (0.3) | |||
| Cash and cash equivalents, end of period | (2.4) | (1.5) | [1] | (0.8) | |||
|
Cash Proceeds [Member]
|
|||||||
| Contributions from noncontrolling interests | $ 13.8 | ||||||
|
|||||||
| X | ||||||||||
|
- Definition
Advances To Equity Method Investments No definition available.
|
| X | ||||||||||
|
- Definition
Excess purchase price over acquired assets No definition available.
|
| X | ||||||||||
|
- Definition
Net Change In Advances To Predecessor No definition available.
|
| X | ||||||||||
|
- Definition
Payments To Acquire Businesses And Unconsolidated Affiliates Net Of Cash Acquired No definition available.
|
| X | ||||||||||
|
- Definition
Return on investment from unconsolidated affiliate No definition available.
|
| X | ||||||||||
|
- Definition
Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in cash and cash equivalents. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total distributions to each class of partners (i.e., general, limited and preferred partners). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for the return on capital for noncontrolled interest in the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for loan and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the purchase of noncontrolling interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the issuance of common limited partners units during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow contributed by noncontrolled interest that purchase additional shares or otherwise increase their ownership stake in a subsidiary of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Valuation And Qualifying Accounts And Reserves (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Dec. 31, 2011
Allowance For Doubtful Accounts [Member]
|
Dec. 31, 2010
Allowance For Doubtful Accounts [Member]
|
Dec. 31, 2009
Allowance For Doubtful Accounts [Member]
|
Dec. 31, 2011
Environmental [Member]
|
Dec. 31, 2010
Environmental [Member]
|
Dec. 31, 2009
Environmental [Member]
|
Dec. 31, 2011
Litigation [Member]
|
Dec. 31, 2010
Litigation [Member]
|
Dec. 31, 2009
Litigation [Member]
|
Dec. 31, 2011
Reserve Other [Member]
|
Dec. 31, 2010
Reserve Other [Member]
|
Dec. 31, 2008
Reserve Other [Member]
|
||||||
| Valuation and Qualifying Accounts Disclosure [Line Items] | ||||||||||||||||||||
| Balance at Beginning of Period | $ 2.6 | $ 4.1 | $ 5.5 | $ 0.5 | $ 0.5 | $ 1.0 | $ 1.9 | $ 1.1 | $ 1.9 | $ 0.2 | $ 2.4 | $ 2.5 | $ 0.1 | [1] | $ 0.1 | [1] | ||||
| Charged to Consolidated Statements of Operations | 1.0 | 1.3 | 0.4 | 1.0 | 0.1 | 0.3 | 0.5 | [1] | ||||||||||||
| Charged to Other Accounts | 1.0 | 1.0 | [1] | |||||||||||||||||
| Deductions/Other | (0.8) | (3.8) | (1.4) | (0.2) | (0.5) | (0.3) | (0.2) | (0.8) | (0.3) | (2.5) | (0.1) | (1.1) | [1] | |||||||
| Balance at End of Period | $ 2.8 | $ 2.6 | $ 4.1 | $ 0.3 | $ 0.5 | $ 0.5 | $ 2.0 | $ 1.9 | $ 1.1 | $ 0.2 | $ 2.4 | $ 0.5 | [1] | $ 0.1 | [1] | |||||
|
||||||||||||||||||||
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to accounts other than costs and expenses in a given period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Subsequent Events (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jan. 18, 2012
|
Jan. 31, 2012
|
Dec. 31, 2011
|
Jan. 03, 2012
|
Dec. 31, 2011
East Texas System [Member]
|
Nov. 14, 2011
East Texas System [Member]
|
Apr. 30, 2009
East Texas System [Member]
|
Feb. 27, 2012
Southeast Texas [Member]
|
Dec. 31, 2011
Southeast Texas [Member]
|
Feb. 27, 2011
Southeast Texas [Member]
|
Jan. 31, 2011
Southeast Texas [Member]
|
Jan. 18, 2012
Discovery Mainline [Member]
|
Jan. 18, 2012
Keathley Canyon Connector [Member]
|
Jan. 03, 2012
East Texas System [Member]
|
Dec. 31, 2011
East Texas System [Member]
|
Nov. 04, 2011
East Texas System [Member]
|
Apr. 30, 2009
East Texas System [Member]
|
Jul. 31, 2007
East Texas System [Member]
|
|
| Subsequent Events [Line Items] | ||||||||||||||||||
| Tenure of term loan | 2 | |||||||||||||||||
| Principal amount of borrowings | $ 135.0 | |||||||||||||||||
| Percentage of Business Acquired | 25.10% | 66.67% | 33.33% | 66.67% | 49.90% | |||||||||||||
| Business acquisition cash paid | 240.0 | 150.0 | 240.0 | 165.0 | ||||||||||||||
| Effective date of acquisition | January 3, 2012 | |||||||||||||||||
| Issuance of common units | 727,520 | |||||||||||||||||
| Ownership interest percentage | 50.10% | 50.10% | 25.10% | 49.90% | 50.10% | 25.10% | 25.00% | |||||||||||
| Total capital expenditure | $ 600 | |||||||||||||||||
| Construct pipeline | 215 | |||||||||||||||||
| Diameter of Connector, in inches | 30 | 20 | ||||||||||||||||
| Percentage of ownership in Southeast Texas | 33.33% | 33.33% | ||||||||||||||||
| Quarterly distribution declared per unit | $ 0.65 | |||||||||||||||||
| Throughput volume | 400 | |||||||||||||||||
| X | ||||||||||
|
- Definition
Diameter Of Connector No definition available.
|
| X | ||||||||||
|
- Definition
Pipeline Length No definition available.
|
| X | ||||||||||
|
- Definition
Principal Amount Of Borrowings No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Tenure Of Term Loan No definition available.
|
| X | ||||||||||
|
- Definition
Amount of cash paid to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Month, date and year in which the acquirer obtains control of the acquiree. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Per-share or per-unit cash distributions declared to a common shareholder or unit-holder by an LLC or LP. No definition available.
|
| X | ||||||||||
|
- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of daily production of the applicable energy source. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|