v3.8.0.1

Fair Value Measurements - Summary of Fair Value and Carrying Value of Assets and Liabilities Measured on Recurring and Non-recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative assets | $ 4,538 | $ 5,164
Advances to equity accounted investments | 10,480 | 13,980
Long term debt | (941,661) | (1,166,301)
Reported Value Measurement [Member] | Equity Accounted Investments [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Advances to equity accounted investments | 10,480 | 13,980
Reported Value Measurement [Member] | Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long term debt | (933,016) | (1,164,605)
Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents and restricted cash | 94,907 | 157,390
Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest Rate Swap [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Interest rate swap agreements | 3,143 | (10,538)
Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Time-charter Swap [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative assets | 875 | 0
Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Warrant [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative assets | 287 | 5,164
Reported Value Measurement [Member] | Fair Value, Measurements, Non-recurring [Member] | Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Vessels held for sale | 33,802 | 0
Fair Value Asset/(Liability) [Member] | Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long term debt | (923,306) | (1,140,135)
Fair Value Asset/(Liability) [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents and restricted cash | 94,907 | 157,390
Fair Value Asset/(Liability) [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest Rate Swap [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Interest rate swap agreements | 3,143 | (10,538)
Fair Value Asset/(Liability) [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Time-charter Swap [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative assets | 875 | 0
Fair Value Asset/(Liability) [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Warrant [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative assets | 287 | 5,164
Fair Value Asset/(Liability) [Member] | Fair Value, Measurements, Non-recurring [Member] | Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Vessels held for sale | $ 33,802 | $ 0

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