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Intangible Assets, Goodwill And Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Goodwill and Intangible Assets Disclosure [Abstract] |  |  |
CO2 volumetric production payments, net of amortization |  | $ 3,503 | $ 7,413
Deferred marine charges, net | [1] | 27,710 | 23,646
Other deferred costs and deposits |  | 25,398 | 27,633
Other assets, net of amortization |  | $ 56,611 | $ 58,692
[1] | (1)See discussion of deferred charges on marine transportation assets in the Summary of Accounting Policies (Note 2)

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- Definition Deferred charges on marine transportation assets, such as major replacements and improvements. + References No definition available. + Details
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- Definition Payments made for minimum CO2 production, net of amortization. + References No definition available. + Details
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- Definition Amount of noncurrent assets classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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