Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Components of Long-Term Debt (Details)

v3.10.0.1
Long-Term Debt - Components of Long-Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Principal $ 903,194 $ 889,790
Principal, current 189,829  
Principal, less current maturities 713,365 889,790
Adjustments to carrying value, Debt premium, discount, issuance costs, net of amortization (2,980) (3,956)
Adjustments to carrying value, Total 80,743 102,262
Adjustments to carrying value, Current maturities 34,985 22,925
Adjustments to carrying value, less current maturities 45,758 79,337
Debt premium, discount, issuance costs, net of amortization (2,980) (3,956)
Total long-term debt 983,937 992,052
Long-term debt 224,814 22,925
Long term debt, less current maturities 759,123 969,127
11.00% 1.5 Lien Term Loan, Due November 2019    
Debt Instrument [Line Items]    
Principal 75,000 75,000
Adjustments to carrying value, Future interest payments 9,425 15,596
Adjustments to carrying value, Subtotal 9,425 15,596
Carrying Value 84,425 90,596
9.00 % Second Lien Term Loan, Due May 2020    
Debt Instrument [Line Items]    
Principal 300,000 300,000
Carrying Value 300,000 300,000
8.50% Unsecured Senior Notes, Due June 2019    
Debt Instrument [Line Items]    
Principal 189,829 189,829
Carrying Value 189,829 189,829
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020    
Debt Instrument [Line Items]    
Principal 177,513 171,769
Adjustments to carrying value, Future payments-in-kind   5,745
Adjustments to carrying value, Future interest payments 31,952 34,872
Adjustments to carrying value, Subtotal 31,952 40,617
Carrying Value 209,465 212,386
8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021    
Debt Instrument [Line Items]    
Principal 160,852 153,192
Adjustments to carrying value, Future payments-in-kind 3,664 11,323
Adjustments to carrying value, Future interest payments 38,682 38,682
Adjustments to carrying value, Subtotal 42,346 50,005
Carrying Value $ 203,198 $ 203,197