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Business Segment Information (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | $ 142,486 | $ 98,567 | $ 287,367 | $ 192,688
Capital Expenditures | 115,521 | 108,153 |  |
External customers | 445,976 | 656,327 |  |
Intersegment | 0 | 0 |  |
Total revenues | 445,976 | 656,327 | 824,390 | 1,183,184
Offshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 84,282 | 25,100 |  |
Capital Expenditures | 2,373 | 86 |  |
External customers | 76,829 | 1,258 |  |
Intersegment | 2,165 | 0 |  |
Total revenues | 78,994 | 1,258 | 155,120 | 2,048
Onshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 12,090 | 14,363 |  |
Capital Expenditures | 56,282 | 40,893 |  |
External customers | 10,634 | 15,856 |  |
Intersegment | 5,616 | 3,077 |  |
Total revenues | 16,250 | 18,933 | 34,401 | 38,001
Refinery services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 19,861 | 20,221 |  |
Capital Expenditures | 832 | 238 |  |
External customers | 43,618 | 48,786 |  |
Intersegment | (2,294) | (2,462) |  |
Total revenues | 41,324 | 46,324 | 83,860 | 92,448
Marine transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 18,082 | 27,225 |  |
Capital Expenditures | 27,562 | 11,086 |  |
External customers | 50,964 | 60,603 |  |
Intersegment | 1,645 | 1,991 |  |
Total revenues | 52,609 | 62,594 | 104,645 | 119,965
Supply and logistics |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin | 8,171 | 11,658 |  |
Capital Expenditures | 28,472 | 55,850 |  |
External customers | 263,931 | 529,824 |  |
Intersegment | (7,132) | (2,606) |  |
Total revenues | $ 256,799 | $ 527,218 | 446,364 | 930,722
Sekco [Member] | Onshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital Expenditures |  |  | 0 | 1,800
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin |  |  | 287,367 | 192,688
Capital Expenditures |  |  | 241,679 | 233,361
External customers |  |  | 824,390 | 1,183,184
Operating Segments | Offshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin |  |  | 162,900 | 50,298
Capital Expenditures |  |  | 31,198 | 2,139
External customers |  |  | 152,955 | 2,048
Operating Segments | Onshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin |  |  | 27,767 | 28,686
Capital Expenditures |  |  | 102,009 | 109,484
External customers |  |  | 25,510 | 31,687
Operating Segments | Refinery services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin |  |  | 41,060 | 39,381
Capital Expenditures |  |  | 1,157 | 1,450
External customers |  |  | 88,368 | 97,221
Operating Segments | Marine transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin |  |  | 36,998 | 52,918
Capital Expenditures |  |  | 35,991 | 27,662
External customers |  |  | 101,624 | 115,243
Operating Segments | Supply and logistics |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment margin |  |  | 18,642 | 21,405
Capital Expenditures |  |  | 71,324 | 92,626
External customers |  |  | 455,933 | 936,985
Intersegment Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intersegment |  |  | 0 | 0
Intersegment Eliminations | Offshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intersegment |  |  | 2,165 | 0
Intersegment Eliminations | Onshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intersegment |  |  | 8,891 | 6,314
Intersegment Eliminations | Refinery services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intersegment |  |  | (4,508) | (4,773)
Intersegment Eliminations | Marine transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intersegment |  |  | 3,021 | 4,722
Intersegment Eliminations | Supply and logistics |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intersegment |  |  | $ (9,569) | $ (6,263)

X
- 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 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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