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Acquisitions, Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Jan. 01, 2016 | Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |  |
Business acquisition, goodwill |  | $ 3,475 |  | $ 1,676
Stock-based compensation expense |  | 3,503 | $ 2,344 |
Chief Executive Officer [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Stock-based compensation expense |  | 745 | 6 |
Non-Employee Shareholders [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Interest expense |  | 0 | $ 251 |
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 |  |

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- Definition 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 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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