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Business Segment Information (Schedule Of Segment Information) (Details) (USD $) | 3 Months Ended
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Mar. 31, 2012 | Mar. 31, 2011
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | $ 60,252,000 | [1] | $ 49,155,000 | [1]
Capital expenditures | 288,169,000 | [2] | 1,036,000 | [2]
External customers | 932,943,000 |  | 689,798,000 |
Total revenues | 932,943,000 |  | 689,798,000 |
Acquisition of interests | 205,600,000 |  |  |
Share of construction costs in joint ventures | 33,542,000 |  | 194,000 |
Barge Assets [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | 30,600,000 |  |  |
Pipeline Transportation [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 25,347,000 | [1] | 17,682,000 | [1]
Capital expenditures | 246,428,000 | [2] | 448,000 | [2]
External customers | 14,976,000 |  | 12,593,000 |
Intersegment | 4,433,000 | [3] | 1,862,000 | [3]
Total revenues | 19,409,000 |  | 14,455,000 |
Refinery Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 17,249,000 | [1] | 17,948,000 | [1]
Capital expenditures | 910,000 | [2] | 280,000 | [2]
External customers | 50,373,000 |  | 49,583,000 |
Intersegment | (2,328,000) | [3] | (2,037,000) | [3]
Total revenues | 48,045,000 |  | 47,546,000 |
Supply And Logistics [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 17,656,000 | [1] | 13,525,000 | [1]
Capital expenditures | 40,831,000 | [2] | 308,000 | [2]
External customers | 867,594,000 |  | 627,622,000 |
Intersegment | (2,105,000) | [3] | 175,000 | [3]
Total revenues | $ 865,489,000 |  | $ 627,797,000 |
[1] | A reconciliation of Segment Margin to income before income taxes for the periods presented is as follows:
[2] | Capital expenditures include fixed asset additions and acquisitions of businesses and equity investees. For the three months ended March 31, 2012, capital spending in our Pipeline Transportation segment included $205.6 million for the acquisition of interests in several Gulf of Mexico pipelines and $33.5 million for our share of construction costs in connection with our joint venture in the planned SEKCO pipeline. Capital spending in our Supply & Logistics segment included $30.6 million for the purchase of barge assets during the three months ended March 31, 2012.
[3] | Intersegment sales were conducted on an arm's length basis.

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- Definition Revenues less product costs, operating expenses (excluding non-cash charges such as depreciation and amortization), and segment general and administrative expenses, plus our equity in distributable cash generated by our equity investees. Also excludes the non-cash effects of our stock appreciation rights compensation plan and includes the non-income portion of payments received under direct financing leases. + References No definition available. + Details
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- Definition Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 28 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The cash outflow associated with the acquisition of a controlling interest in another entity or an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 + Details
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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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