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Long-Term Debt - Schedule Of Long-Term Debt Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
7.75% Senior Notes due 2019    
Debt Instrument [Line Items]    
Interest rate 7.75%  
7.75% Senior Notes due 2022    
Debt Instrument [Line Items]    
Interest rate 7.75%  
Term Loan    
Debt Instrument [Line Items]    
Unamortized discounts (premiums) $ (11,400)  
Successor    
Debt Instrument [Line Items]    
Capital leases and other notes 78,046  
Unamortized discounts (premiums) (19,001)  
Long-term debt and capital leases 223,220  
Less current portion 38,468  
Long-term debt 184,752  
Successor | 7.75% Senior Notes due 2019    
Debt Instrument [Line Items]    
Long-term debt 0  
Successor | 7.75% Senior Notes due 2022    
Debt Instrument [Line Items]    
Long-term debt 0  
Successor | Term Loan    
Debt Instrument [Line Items]    
Long-term debt $ 164,175  
Predecessor    
Debt Instrument [Line Items]    
Capital leases and other notes   $ 111,063
Unamortized discounts (premiums)   (8,748)
Long-term debt and capital leases   877,315
Less current portion   48,651
Long-term debt   828,664
Predecessor | 7.75% Senior Notes due 2019    
Debt Instrument [Line Items]    
Long-term debt   475,000
Predecessor | 7.75% Senior Notes due 2022    
Debt Instrument [Line Items]    
Long-term debt   300,000
Predecessor | Term Loan    
Debt Instrument [Line Items]    
Long-term debt   $ 0