Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Schedule of Accrued Liabilities (Details)

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Basis of Presentation - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Payables And Accruals [Abstract]    
Accrued interest $ 4,199 $ 4,200
Accrued salaries/payroll taxes/benefits 2,996 2,454
Incentive compensation plans 3,987 7,366
Litigation accruals 3,604 3,480
Derivative contracts 5,281 84
Other 438 430
Total accrued liabilities $ 20,505 $ 17,930