Related Party Transactions - Summary of Related Party Transactions (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Pool management fees and commissions	$ (1,063)	$ (2,750)	$ (2,799)	$ (5,886)
Commercial management fees	(480)	(408)	(1,187)	(748)
Vessel operating expenses	(46,853)	(46,389)	(90,991)	(91,462)
Strategic and administrative service fees	(4,253)	(2,775)	(6,917)	(4,990)
Equity Entities under Common Control
Related Party Transaction [Line Items]
Pool management fees and commissions	1,063	2,750	2,799	5,886
Commercial management fees	480	408	1,187	748
Strategic and administrative service fees	(2,891)	(4,178)	(7,026)	(8,148)
Time-charter revenues
Related Party Transaction [Line Items]
Revenues	0	2,452	0	4,987
Vessel operating expenses - technical management fee
Related Party Transaction [Line Items]
Vessel operating expenses	(2,196)	(2,276)	(4,422)	(4,587)
Lay-up service revenues
Related Party Transaction [Line Items]
Revenues	0	116	6	116
LNG terminal services revenue
Related Party Transaction [Line Items]
Revenues	84	0	168	0
Technical management fee revenues \| Selling, General and Administrative
Related Party Transaction [Line Items]
Revenues	1,220	0	1,220	0
Technical management fee revenues \| Equity Entities under Common Control \| Selling, General and Administrative
Related Party Transaction [Line Items]
Revenues	2,137	2,641	4,890	5,358
Service revenues
Related Party Transaction [Line Items]
Revenues	277	0	277	0
Service revenues \| Equity Entities under Common Control
Related Party Transaction [Line Items]
Revenues	$ 638	$ 1,482	$ 1,772	$ 3,011

Commercial Management Fees Related Party

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- Definition

Pool Management Fees And Commissions Related Party

+ References

No definition available.

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- Definition

The aggregate direct operating costs incurred during the reporting period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

+ References

No definition available.

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999

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