v3.25.2
Fair Value Measurements (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 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 $ 838.0   $ 785.2      
Long-term debt, net of debt issuance costs 805.3   756.7      
Derivative, Notional Amount 2,200.0   2,210.0      
Foreign currency forward contracts, net notional value 1,170.0   1,080.0      
Investments, Fair Value Disclosure 833.7   742.0 $ 744.7   $ 740.8
Deferred compensation plan, contra-equity, shares held in trust 12.0   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 7.5   5.4      
Derivative Asset, Fair Value, Gross Liability (1.2)   (0.5)      
Derivative Liability, Fair Value, Gross Asset (0.1)   (1.9)      
Derivative Liability, Fair Value, Gross Liability 8.6   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 495.1   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 6.3   4.9      
Foreign currency forward contract, current liability amount 8.5   13.9      
Deferred compensation plan assets 674.9   664.0      
Deferred compensation plan liabilities 658.5   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 293.1 $ 311.0 330.3 367.8 $ 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 $ 19.1 $ 37.5 $ 35.8 $ 53.7 $ 46.7 $ 57.5