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Equity Method Investments - RasGas 3 Joint Venture - Additional Information (Detail) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) Vessel | Jul. 09, 2014
Schedule of Equity Method Investments [Line Items] |  |
Percentage of ownership in joint venture | 100.00% |
RasGas 3 [Member] | Liquefied Natural Gas [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage of ownership in joint venture | 40.00% |
Number of vessels | Vessel | 4 |
Maximum exposure to loss as a result of investment | $ 161.4 |
Excelsior [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Maximum exposure to loss as a result of investment | 49.0 |
Guaranteed debt | $ 47.5 |
Angola LNG Carriers [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage of ownership in joint venture | 33.00% |
Number of vessels | Vessel | 4 |
Maximum exposure to loss as a result of investment | $ 58.2 |
Guaranteed debt | 272.0 |
Carrying value of guarantee liability | 1.2 |
Yamal LNG Joint Venture [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage of ownership in joint venture |  | 50.00%
Maximum exposure to loss as a result of investment | $ 99.9 |

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