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LONG-TERM DEBT - Senior Unsecured Debt (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Nov. 17, 2017
Debt Instrument [Line Items]      
Amortization of prepayment premium $ 256 $ 848  
Term B-2 Loan, due November 17, 2024      
Debt Instrument [Line Items]      
Wrote off of deferred debt issuance cost   1,300  
Unsecured Debt | 7.25% senior unsecured notes, due November 1, 2024      
Debt Instrument [Line Items]      
Debt instrument, stated percentage (percent)     7.25%
Debt instrument, face amount     $ 400,000
Amortization of prepayment premium   14,500  
Write-off of unamortized premium   8,700  
Wrote off of deferred debt issuance cost   $ 1,000