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Accounts Receivable And Unbilled, Net - Schedule of Accounts Receivable and Unbilled, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Accounts Notes And Loans Receivable Net Current [Abstract]    
Accounts receivable $ 50,973 $ 48,270
Unbilled 25,947 34,719
Less allowance for doubtful accounts (2,212) (3,222)
Total accounts receivable and unbilled, net $ 74,708 $ 79,767