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Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Nov. 18, 2016
Term Loan \| Third First Lien Term Loan
Debt Instrument [Line Items]
Long-term debt			$ 996,300
Successor
Debt Instrument [Line Items]
Capital lease obligation (6.8%)	$ 569	$ 724
Total debt and capital lease obligation	999,188	1,004,870
Less: Amounts due within one year	(11,268)	(11,496)
Long-term portion	987,920	993,374
Successor \| Term Loan \| Third First Lien Term Loan
Debt Instrument [Line Items]
Principal	993,762	998,750
Unamortized debt premium and issuance costs	4,857	5,396
Long-term debt	$ 998,619	$ 1,004,146
Effective fixed interest rate on long-term debt	3.60%
Successor \| Capital lease obligation
Debt Instrument [Line Items]
Effective fixed interest rate on long-term debt	6.80%