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Fair Value Measurements (Details)
$ in Millions
9 Months Ended
Sep. 30, 2023
USD ($)
contract
Dec. 31, 2022
USD ($)
Net Investment Hedging [Member]    
Fair value of assets and liabilities measured on recurring basis    
Number of forward contracts | contract 0  
Cash Flow Hedging    
Fair value of assets and liabilities measured on recurring basis    
Number of forward contracts | contract 0  
Maximum    
Fair value of assets and liabilities measured on recurring basis    
Long-term investments maturity period 2 years  
Fair value measurements recurring basis    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments $ 252.5 $ 61.1
Long-term investments 0.8 50.8
Forward contracts   1.5
Forward contracts (0.8)  
Redeemable noncontrolling interest (21.8) (20.6)
Total asset 230.7 92.8
Fair value measurements recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments 0.0 0.0
Long-term investments 0.0 0.0
Forward contracts   0.0
Forward contracts 0.0  
Redeemable noncontrolling interest 0.0 0.0
Total asset 0.0 0.0
Fair value measurements recurring basis | Significant Observable Inputs (Level 2)    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments 252.5 61.1
Long-term investments 0.8 50.8
Forward contracts   1.5
Forward contracts (0.8)  
Redeemable noncontrolling interest 0.0 0.0
Total asset 252.5 113.4
Fair value measurements recurring basis | Significant Unobservable Inputs (Level 3)    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments 0.0 0.0
Long-term investments 0.0 0.0
Forward contracts   0.0
Forward contracts 0.0  
Redeemable noncontrolling interest (21.8) (20.6)
Total liability $ (21.8) $ (20.6)