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Acquisition (Schedule Of Pro Forma Financial Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
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Mar. 31, 2012 | Mar. 31, 2011
Business Acquisition [Line Items] |  |
As reported net income per unit | $ 0.27 | $ 0.11
As reported units outstanding | 72,836 | 64,615
Gulf Of Mexico Crude Oil Pipeline Systems [Member] |  |
Business Acquisition [Line Items] |  |
Revenues |  | $ 691,554
Equity in earnings of equity investees |  | 5,515
Net income |  | $ 8,631
As reported net income per unit |  | $ 0.11
Pro forma net income per unit |  | $ 0.13
As reported units outstanding |  | 64,615
Pro forma units outstanding |  | 64,615

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- Definition The pro forma earnings per unit for a period as if the business combination had been completed at the beginning of a period. + References No definition available. + Details
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- Definition The pro forma units outstanding for a period as if the business combination had been completed at the beginning of a period. + References No definition available. + Details
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- Definition The pro forma equity in earnings for a period as if the acquisition had been completed at the beginning of a period. + References No definition available. + Details
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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463 + Details
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463 + Details
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- Definition The amount of net income or loss for the period per each limited partnership and general partnership unit in instances when basic and diluted earnings per unit are the same amount and aggregated on the face of the financial statements. Basic earnings per unit is the amount of net income or loss for the period per unit outstanding during the reporting period. Diluted earnings per unit includes the amount of net income or loss for the period available to each limited and general partnership unit outstanding during the reporting period and to each unit that would have been outstanding assuming the issuance of units for all dilutive potential units outstanding during the reporting period. + References No definition available. + Details
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