Intangible Assets, Goodwill And Other Assets (Schedule Of Estimated Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
2015	$ 17,339
2016	14,861
2017	13,698
2018	12,777
2019	8,334
Refinery Services Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
2015	4,405
2016	3,471
2017	2,737
2018	2,161
2019	0
Refinery Services Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
2015	2,711
2016	2,510
2017	2,324
2018	2,150
2019	0
Supply And Logistics Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
2015	1,275
2016	981
2017	757
2018	586
2019	454
Supply And Logistics Intangibles associated with lease [Member]
Finite-Lived Intangible Assets [Line Items]
2015	474
2016	474
2017	474
2018	474
2019	474
Marine Transportation Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
2015	6,417
2016	5,400
2017	5,400
2018	5,400
2019	5,400
Other [Member]
Finite-Lived Intangible Assets [Line Items]
2015	2,057
2016	2,025
2017	2,006
2018	2,006
2019	$ 2,006

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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