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LONG-TERM OBLIGATIONS - Fair Value of Debt (Details) - Secured Debt
$ in Millions
Mar. 31, 2022
USD ($)
$ / shares
Line of Credit | Original Term Loan  
Debt Instrument [Line Items]  
Book Value $ 77.9
Line of Credit | Original Term Loan | Fair Value, Inputs, Level 2  
Debt Instrument [Line Items]  
Fair Value 77.8
Medium-term Notes | 5% Notes  
Debt Instrument [Line Items]  
Book Value 600.0
Medium-term Notes | 5% Notes | Fair Value, Inputs, Level 2  
Debt Instrument [Line Items]  
Fair Value $ 576.0
Measurement Input, Quoted Price | Line of Credit | Original Term Loan  
Debt Instrument [Line Items]  
Quotes | $ / shares 0.99875
Measurement Input, Quoted Price | Medium-term Notes | 5% Notes  
Debt Instrument [Line Items]  
Quotes | $ / shares 0.96000