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Emergence from Chapter 11 and Fresh Start Accounting - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended 108 Months Ended
Dec. 31, 2016
Dec. 31, 2016
Dec. 31, 2025
Dec. 31, 2017
Fresh-Start Adjustment [Line Items]        
Weighted average cost of capital 17.00%      
Common stock, par value (in dollars per share) $ 0.01 $ 0.01   $ 0.01
Common Stock        
Fresh-Start Adjustment [Line Items]        
Issuances of successor common stock and warrants (in shares)   26,095,431    
Repayment of Debtor in Possession Financing        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in current portion of long-term debt $ (38,400) $ (38,400)    
Reinstatement of Short-term Term Loans        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in current portion of long-term debt 1,600 1,600    
Reduction of Property and Equipment to Fair Value        
Fresh-Start Adjustment [Line Items]        
Reduction of property and equipment net book value to estimated fair value (178,400) (178,400)    
Fresh Start Adjustments        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in current portion of long-term debt (1,657) (1,657)    
Reduction of property and equipment net book value to estimated fair value (178,391) (178,391)    
Increase (decrease) in intangible assets (53,769) (53,769)    
Increase (decrease) in long-term debt (17,343) (17,343)    
Capital Lease Discounts to Fair Market Value, Current        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in current portion of long-term debt (1,700) (1,700)    
Increase in Operating Leases Fair Market Value        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in current portion of long-term debt 200 200    
Discount to Fair Market Value, Term Loan        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in long-term debt (11,400) (11,400)    
Discount to Fair Market Value, Long-term Capital Leases        
Fresh-Start Adjustment [Line Items]        
Increase (decrease) in long-term debt (6,000) (6,000)    
Successor        
Fresh-Start Adjustment [Line Items]        
Enterprise value $ 525,000 $ 525,000    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01    
Debt instrument, fair value $ 223,200 $ 223,200    
Debt instrument, face amount $ 242,200 $ 242,200    
Successor | Common Stock        
Fresh-Start Adjustment [Line Items]        
Issuances of successor common stock and warrants (in shares) 26,095,431      
Successor | Fair Value, Inputs, Level 2 | Warrants Not Settleable in Cash | Series A Warrants        
Fresh-Start Adjustment [Line Items]        
Warrants, fair value (in dollars per share) $ 4.04 $ 4.04    
Scenario, Forecast        
Fresh-Start Adjustment [Line Items]        
Effective tax rate     38.50%  
Minimum | Successor        
Fresh-Start Adjustment [Line Items]        
Enterprise value $ 425,000 $ 425,000    
Maximum | Successor        
Fresh-Start Adjustment [Line Items]        
Enterprise value $ 625,000 $ 625,000