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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities Associated with Interest Rate Derivatives (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Assets:      
Other current assets $ 1.8   $ 1.2
Other long-term assets 96.7   88.1
Total assets 98.5   89.3
Liabilities:      
Accrued expenses and other current liabilities 0.0   0.0
Other long-term liabilities 0.0   0.0
Total liabilities 0.0   $ 0.0
Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations 7.5 $ 5.7  
Cash Flow Hedging | Designated as Hedging Instrument | Other Current Assets      
Liabilities:      
Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations 0.2    
Cash Flow Hedging | Not Designated as Hedging Instrument | Other Noncurrent Assets      
Liabilities:      
Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations $ 4.0 $ 3.7