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Derivative Instruments and Hedging Activities - Effect of Gain (Loss) on Derivatives Not Designated as Hedging Instruments (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Realized losses relating to: |  |  |
Derivative instruments not designated as hedging instruments realized (loss) gain net | $ (104,492) | $ (140,519) | $ (131,179)
Unrealized gains (losses) relating to: |  |  |
Derivative instruments not designated as hedging instruments unrealized gain (loss) net | 69,401 | 38,319 | (100,496)
Total realized and unrealized (losses) gains on derivative instruments | (35,091) | (102,200) | (231,675)
Interest Rate Swap Agreements [Member] |  |  |
Realized losses relating to: |  |  |
Derivative instruments not designated as hedging instruments realized (loss) gain net | (87,320) | (108,036) | (125,424)
Unrealized gains (losses) relating to: |  |  |
Derivative instruments not designated as hedging instruments unrealized gain (loss) net | 62,446 | 37,723 | (86,045)
Interest Rate Swaps Terminations [Member] |  |  |
Realized losses relating to: |  |  |
Derivative instruments not designated as hedging instruments realized (loss) gain net | (8,140) | (10,876) | (1,319)
Foreign currency forward contracts [Member] |  |  |
Realized losses relating to: |  |  |
Derivative instruments not designated as hedging instruments realized (loss) gain net | (11,186) | (21,607) | (4,436)
Unrealized gains (losses) relating to: |  |  |
Derivative instruments not designated as hedging instruments unrealized gain (loss) net | 15,833 | (418) | (16,926)
Time-charter Swap Agreement [Member] |  |  |
Realized losses relating to: |  |  |
Derivative instruments not designated as hedging instruments realized (loss) gain net | 2,154 | 0 | 0
Unrealized gains (losses) relating to: |  |  |
Derivative instruments not designated as hedging instruments unrealized gain (loss) net | 875 | 0 | 0
Stock Purchase Warrants [Member] |  |  |
Unrealized gains (losses) relating to: |  |  |
Derivative instruments not designated as hedging instruments unrealized gain (loss) net | $ (9,753) | $ 1,014 | $ 2,475

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- Definition Derivative instruments not designated as hedging instruments realized gain (loss) net. + References No definition available. + Details
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- Definition Derivative instruments not designated as hedging instruments unrealized gain loss net. + References No definition available. + Details
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- Definition Realized losses gains. + References No definition available. + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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