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Business Segment Information (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Segment Reporting Information [Line Items] |  |
Segment margin | $ 144,881 | $ 94,121
Total revenues | 378,414 | 526,857
Offshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 76,126 | 790
Onshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 18,151 | 19,068
Refinery services |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 42,536 | 46,124
Marine transportation |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 52,036 | 57,371
Supply and logistics |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 189,565 | 403,504
Sekco [Member] | Onshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Capital Expenditures |  | 1,800
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Segment margin | 144,881 | 94,121
Capital Expenditures | 126,158 | 125,208
External customers | 378,414 | 526,857
Operating Segments | Offshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Segment margin | 78,618 | 25,198
Capital Expenditures | 28,825 | 2,053
External customers | 76,126 | 790
Operating Segments | Onshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Segment margin | 15,677 | 14,323
Capital Expenditures | 45,727 | 68,591
External customers | 14,876 | 15,831
Operating Segments | Refinery services |  |
Segment Reporting Information [Line Items] |  |
Segment margin | 21,199 | 19,160
Capital Expenditures | 325 | 1,212
External customers | 44,750 | 48,435
Operating Segments | Marine transportation |  |
Segment Reporting Information [Line Items] |  |
Segment margin | 18,916 | 25,693
Capital Expenditures | 8,429 | 16,576
External customers | 50,660 | 54,640
Operating Segments | Supply and logistics |  |
Segment Reporting Information [Line Items] |  |
Segment margin | 10,471 | 9,747
Capital Expenditures | 42,852 | 36,776
External customers | 192,002 | 407,161
Intersegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Intersegment | 0 | 0
Intersegment Eliminations | Offshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Intersegment | 0 | 0
Intersegment Eliminations | Onshore pipeline transportation |  |
Segment Reporting Information [Line Items] |  |
Intersegment | 3,275 | 3,237
Intersegment Eliminations | Refinery services |  |
Segment Reporting Information [Line Items] |  |
Intersegment | (2,214) | (2,311)
Intersegment Eliminations | Marine transportation |  |
Segment Reporting Information [Line Items] |  |
Intersegment | 1,376 | 2,731
Intersegment Eliminations | Supply and logistics |  |
Segment Reporting Information [Line Items] |  |
Intersegment | $ (2,437) | $ (3,657)

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- Definition Capital expenditures include both maintenance and growth capital expenditures, such as fixed asset additions (including enhancements to existing facilities and construction of internal growth projects) as well as acquisitions of businesses and interests in equity investees. + References No definition available. + Details
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- Definition Amount of revenue from external customers for the reportable segment. + References No definition available. + Details
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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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