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

Number Of Vessels

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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