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Accounts Receivable, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Receivables [Abstract]    
Trade $ 52,652 $ 53,503
Due from affiliates, net 16,886 13,140
Settlement assets 6,304 4,742
Other 123 306
Less: allowance for doubtful accounts (2,250) (1,007)
Accounts receivable, net $ 73,715 $ 70,684