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Accounts Receivable, net (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Receivables [Abstract]    
Trade accounts receivable, net of allowance of $14,358 and $2,528, respectively $ 89,096 $ 166,256
Unbilled receivables 30,882 40,033
Taxes receivable 42,870 34,163
Affiliated 717 3,966
Other receivables 3,852 1,773
Total accounts receivable 167,417 246,191
Trade accounts receivable allowance $ 14,337 $ 2,528