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Accounts Receivable, net (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Receivables [Abstract]    
Trade accounts receivable, net of allowance of $12,260 and $2,528, respectively $ 95,713 $ 166,256
Allowance for trade accounts receivable 12,260 2,528
Unbilled revenue 25,442 40,033
Taxes receivable 30,900 34,163
Affiliated 750 3,966
Other receivables 2,558 1,773
Total accounts receivable $ 155,363 $ 246,191