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Acquisitions, Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands		1 Months Ended		3 Months Ended		6 Months Ended
	Jan. 01, 2016	May 31, 2016	Apr. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Business Acquisition [Line Items]
Business acquisition, goodwill				$ 3,475		$ 3,475		$ 1,676
Expenses related to purchase of stake and other related expenses				5,993	$ 264	6,738	$ 521
Boost [Member]
Business Acquisition [Line Items]
Percentage of issued and outstanding membership interest acquired			75.00%
Expenses related to purchase of stake and other related expenses		$ 5,993
Payout period			4 years
GreenHaven Commodity Services, LLC [Member]
Business Acquisition [Line Items]
Percentage of issued and outstanding membership interest acquired	100.00%
Business acquisition, cash paid	$ 11,800
Business acquisition, recognized an intangible asset	9,953
Business acquisition, goodwill	$ 1,799
Intangible asset related to its customary advisory agreement				$ 9,953		$ 9,953

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Payout Period

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