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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 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Assets:          
Other current assets $ 0.5   $ 0.5   $ 1.2
Other long-term assets 64.8   64.8   88.1
Total assets 65.4   65.4   89.3
Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations 7.5 $ 6.7 22.4 $ 18.6  
Cash Flow Hedging | Designated as Hedging Instrument          
Assets:          
Other current assets 0.1   0.1    
Cash Flow Hedging | Not Designated as Hedging Instrument          
Assets:          
Other long-term assets $ 2.9   $ 2.9   $ 3.7