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Intangible Assets (Schedule Of Components Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012
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Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | $ 202,534 | $ 256,311
Intangible assets, Accumulated Amortization | 136,781 | 181,246
Intangible assets, Carrying Value | 65,753 | 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 | 74,504 | 69,167
Intangible assets, Carrying Value | 20,150 | 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 | 25,264 | 22,892
Intangible assets, Carrying Value | 13,414 | 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 | 99,768 | 128,528
Intangible assets, Carrying Value | 33,564 | 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 | 28,027 | 26,403
Intangible assets, Carrying Value | 7,403 | 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 | 2,920 | 2,565
Intangible assets, Carrying Value | 10,340 | 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 | 30,947 | 47,856
Intangible assets, Carrying Value | 17,743 | 19,722
Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross Carrying Amount | 20,512 | 18,932
Intangible assets, Accumulated Amortization | 6,066 | 4,862
Intangible assets, Carrying Value | $ 14,446 | $ 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=26713463&loc=d3e16323-109275 + 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=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after 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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