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LONG-TERM OBLIGATIONS - Fair Value of Debt (Details) - Medium-term Notes - Secured Debt - 5% Notes
$ in Millions
Sep. 30, 2023
USD ($)
$ / shares
Debt Instrument [Line Items]  
Book Value $ 600.0
Fair Value, Inputs, Level 2  
Debt Instrument [Line Items]  
Fair Value $ 537.0
Measurement Input, Quoted Price  
Debt Instrument [Line Items]  
Quotes | $ / shares 0.89500