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Financial Instruments - Derivative Hedging Activities (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Interest expense $ (139.3) $ (126.7)
Amount of (loss) gain reclassified from accumulated other comprehensive loss into earnings, net of tax:    
(Loss) gain on cash flow hedging relationships 2.1 2.6
Interest Expense | Interest rate swap locks | Cash Flow Hedging    
Amount of (loss) gain reclassified from accumulated other comprehensive loss into earnings, net of tax:    
(Loss) gain on cash flow hedging relationships (0.9) (1.0)
Interest Expense | 2022 interest rate swap | Cash Flow Hedging    
Amount of (loss) gain reclassified from accumulated other comprehensive loss into earnings, net of tax:    
(Loss) gain on cash flow hedging relationships 3.0 3.6
Interest Expense | Interest Rate Contract    
Gain (loss) on free-standing derivative instruments:    
Net gain (loss) on change in fair value of free-standing derivative instruments $ 0.0 $ (1.1)