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Accounts Receivable, net (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Receivables [Abstract]    
Accounts receivable $ 11,466 $ 22,060
Allowance for doubtful accounts (1,845) (1,012)
Accounts receivable, net $ 9,621 $ 21,048