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Fair Value Measurements (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of long-term debt $ 797.5 $ 785.2    
Long-term debt, net of debt issuance costs 772.1 756.7    
Derivative, Notional Amount 2,160.0 2,210.0    
Foreign currency forward contracts, net notional value 960.0 1,080.0    
Investments, Fair Value Disclosure 856.0 742.0 $ 743.8 $ 740.8
Deferred compensation plan, contra-equity, shares held in trust 12.1 11.8    
Foreign Exchange Contract [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset, Fair Value, Gross Asset 4.0 5.4    
Derivative Asset, Fair Value, Gross Liability (1.5) (0.5)    
Derivative Liability, Fair Value, Gross Asset (0.3) (1.9)    
Derivative Liability, Fair Value, Gross Liability 4.4 15.8    
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, Fair Value Disclosure 502.4 367.9    
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, Fair Value Disclosure 0.0 0.0    
Foreign currency forward contract, current asset amount 2.5 4.9    
Foreign currency forward contract, current liability amount 4.1 13.9    
Deferred compensation plan assets 673.4 664.0    
Deferred compensation plan liabilities 644.5 658.4    
Business Combination, Contingent Consideration, Liability 0.0 0.0    
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, Fair Value Disclosure 311.0 330.3 369.7 367.3
Foreign currency forward contract, current asset amount 0.0 0.0    
Foreign currency forward contract, current liability amount 0.0 0.0    
Deferred compensation plan assets 0.0 0.0    
Deferred compensation plan liabilities 0.0 0.0    
Business Combination, Contingent Consideration, Liability $ 37.5 $ 35.8 $ 46.7 $ 57.5