XML 64 R49.htm IDEA: XBRL DOCUMENT v3.4.0.3
Acquisitions, Goodwill and Intangible Assets - Summary of Purchase Price Allocation (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Jan. 01, 2016
Dec. 31, 2015
Business Acquisition [Line Items]      
Goodwill $ 3,475   $ 1,676
GreenHaven Commodity Services, LLC [Member]      
Business Acquisition [Line Items]      
Assets   $ 205  
Goodwill   1,799  
Intangible asset   9,953  
Less: Liabilities   (132)  
Total   $ 11,825