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Fair Value Measurements (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of long-term debt $ 798.1 $ 360.9    
Long-term debt, net of debt issuance costs 779.3 372.8    
Foreign currency forward contracts, gross notional value 2,070.0 1,810.0    
Foreign currency forward contracts, net notional value 1,210.0 1,020.0    
Deferred compensation plan, contra-equity, shares held in trust 10.4 9.8    
Investments, Fair Value Disclosure 740.8 794.9 $ 639.6 $ 340.3
Foreign Exchange Contract [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset, Fair Value, Gross Asset 15.2 7.7    
Derivative Asset, Fair Value, Gross Liability (2.7) (4.0)    
Derivative Liability, Fair Value, Gross Asset (3.2) (1.6)    
Derivative Liability, Fair Value, Gross Liability 12.0 6.4    
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 321.8 284.6    
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Foreign currency forward contract, current asset amount 12.5 3.7    
Foreign currency forward contract, current liability amount 8.8 4.8    
Deferred compensation plan assets 604.3 517.9    
Deferred compensation plan liabilities 576.1 485.4    
Investments, Fair Value Disclosure $ 0.0 $ 0.0