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Intangible Assets, Goodwill And Other Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | $ 389,942 | $ 236,819
Intangible assets, Accumulated Amortization | 166,496 | 153,888
Intangible assets, Carrying Value | $ 223,446 | 82,931
Refinery Services Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 5 years |
Intangible assets, Gross Carrying Amount | $ 94,654 | 94,654
Intangible assets, Accumulated Amortization | 86,285 | 81,880
Intangible assets, Carrying Value | $ 8,369 | 12,774
Refinery Services Licensing Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 6 years |
Intangible assets, Gross Carrying Amount | $ 38,678 | 38,678
Intangible assets, Accumulated Amortization | 31,694 | 28,983
Intangible assets, Carrying Value | 6,984 | 9,695
Refinery Services [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 133,332 | 133,332
Intangible assets, Accumulated Amortization | 117,979 | 110,863
Intangible assets, Carrying Value | $ 15,353 | 22,469
Supply And Logistics Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 5 years |
Intangible assets, Gross Carrying Amount | $ 35,430 | 35,430
Intangible assets, Accumulated Amortization | 32,044 | 30,228
Intangible assets, Carrying Value | $ 3,386 | 5,202
Supply And Logistics Intangibles associated with lease [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 15 years |
Intangible assets, Gross Carrying Amount | $ 13,260 | 13,260
Intangible assets, Accumulated Amortization | 3,986 | 3,512
Intangible assets, Carrying Value | 9,274 | 9,748
Supply And Logistics [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 48,690 | 48,690
Intangible assets, Accumulated Amortization | 36,030 | 33,740
Intangible assets, Carrying Value | $ 12,660 | 14,950
Marine Transportation Contracts [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 5 years |
Intangible assets, Gross Carrying Amount | $ 27,000 | 32,000
Intangible assets, Accumulated Amortization | 900 | 833
Intangible assets, Carrying Value | $ 26,100 | 31,167
Offshore Pipeline Contracts [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 19 years |
Intangible assets, Gross Carrying Amount | $ 158,101 | 0
Intangible assets, Accumulated Amortization | 3,467 | 0
Intangible assets, Carrying Value | $ 154,634 | 0
Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Weighted Amortization Period in Years | 5 years |
Intangible assets, Gross Carrying Amount | $ 22,819 | 22,797
Intangible assets, Accumulated Amortization | 8,120 | 8,452
Intangible assets, Carrying Value | $ 14,699 | $ 14,345

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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