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Debt - 7.75% Senior Secured Notes Due 2025 (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]      
Repayments of debt $ 329,315 $ 159,489 $ 241,336
Principal amount of long-term debt $ 579,875 731,523  
7.75% Senior Secured Notes due 2025      
Debt Instrument [Line Items]      
Debt instrument, interest rate 7.75%    
Senior Notes | 7.75% Senior Secured Notes due 2025      
Debt Instrument [Line Items]      
Debt instrument, interest rate 7.75%    
Repayments of debt $ 4,000    
Principal amount of long-term debt $ 296,000 $ 300,000