Related Party Transactions - Summary of Related Party Transactions (Detail) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016 USD ($) Vessel	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Vessel	Sep. 30, 2015 USD ($)
Related Party Transaction [Line Items]
Pool management fees and commissions	$ (2,043)	$ (2,630)	$ (7,929)	$ (7,490)
Commercial management fees	(490)	(385)	(1,238)	(827)
Vessel operating expenses	(44,783)	(35,267)	(136,245)	(87,085)
Strategic and administrative service fees	(2,471)	(1,594)	(7,461)	(5,313)
Time-charter [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties	417	0	5,404	0
Lay-up Services [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties	$ 200	0	$ 432	0
Number of vessels \| Vessel	2		2
Technical management fee [Member]
Related Party Transaction [Line Items]
Vessel operating expenses	$ (2,338)	(1,687)	$ (6,925)	(4,843)
Entities under Common Control [Member]
Related Party Transaction [Line Items]
Commercial management fees	0	(64)	0	(191)
Strategic and administrative service fees	0	(171)	0	(511)
Entities under Common Control [Member] \| Time-charter [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties	0	663	0	4,558
Entities under Common Control [Member] \| Technical management fee [Member]
Related Party Transaction [Line Items]
Vessel operating expenses	$ 0	$ (112)	$ 0	$ (334)

Commercial Management Fees Related Party

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- Definition

Number Of Vessels

+ References

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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.

+ References

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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=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Related Parties
-URI http://asc.fasb.org/extlink&oid=16382449

Reference 3: 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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