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Intangible Assets (Schedule Of Components Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
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Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | $ 201,738 | $ 256,311
Intangible assets, Accumulated Amortization | 129,516 | 181,246
Intangible assets, Carrying Value | 72,222 | 75,065
Refinery Services Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 94,654 | 94,654
Intangible assets, Accumulated Amortization | 70,946 | 69,167
Intangible assets, Carrying Value | 23,708 | 25,487
Refinery Services Licensing Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 38,678 | 38,678
Intangible assets, Accumulated Amortization | 23,683 | 22,892
Intangible assets, Carrying Value | 14,995 | 15,786
Refinery Services Supplier Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 0 | 36,469
Intangible assets, Accumulated Amortization | 0 | 36,469
Intangible assets, Carrying Value | 0 | 0
Refinery Services Segment Total [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 133,332 | 169,801
Intangible assets, Accumulated Amortization | 94,629 | 128,528
Intangible assets, Carrying Value | 38,703 | 41,273
Supply And Logistics Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 35,430 | 35,430
Intangible assets, Accumulated Amortization | 26,944 | 26,403
Intangible assets, Carrying Value | 8,486 | 9,027
Supply And Logistics Intangibles Associated With Lease [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 13,260 | 13,260
Intangible assets, Accumulated Amortization | 2,683 | 2,565
Intangible assets, Carrying Value | 10,577 | 10,695
Supply And Logistics Trade Names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 0 | 18,888
Intangible assets, Accumulated Amortization | 0 | 18,888
Intangible assets, Carrying Value | 0 | 0
Supply And Logistics Segment Total [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 48,690 | 67,578
Intangible assets, Accumulated Amortization | 29,627 | 47,856
Intangible assets, Carrying Value | 19,063 | 19,722
Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 19,716 | 18,932
Intangible assets, Accumulated Amortization | 5,260 | 4,862
Intangible assets, Carrying Value | $ 14,456 | $ 14,070

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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=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -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 Amount before 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=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -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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