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LONG-TERM OBLIGATIONS - Schedule of Fair Value (Details) - Senior Notes
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
$ / shares
5% Notes    
Debt Instrument [Line Items]    
Book Value $ 600,000,000.0  
Fair Value 618,000,000.0  
5-5/8% Notes    
Debt Instrument [Line Items]    
Book Value   $ 600,000,000.0
Fair Value   616,500,000
Original Term Loan (net of discount)    
Debt Instrument [Line Items]    
Book Value 77,800,000 384,000,000.0
Fair Value $ 77,700,000 379,200,000
2019 Term Loan (net of discount)    
Debt Instrument [Line Items]    
Book Value   195,900,000
Fair Value   $ 193,900,000
Measurement Input, Quoted Price | 5% Notes    
Debt Instrument [Line Items]    
Quote | $ / shares 1.03000  
Measurement Input, Quoted Price | 5-5/8% Notes    
Debt Instrument [Line Items]    
Quote | $ / shares   1.02750
Measurement Input, Quoted Price | Original Term Loan (net of discount)    
Debt Instrument [Line Items]    
Quote | $ / shares 0.99875 0.98750
Measurement Input, Quoted Price | 2019 Term Loan (net of discount)    
Debt Instrument [Line Items]    
Quote | $ / shares   0.99000