Fair Value Measurements (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) contract entity	Dec. 31, 2023 USD ($) contract
Fair value of assets and liabilities measured on recurring basis
Long-term investments maturity period	3 years
Number of acquisitions whose redeemable noncontrolling interest holders have exercised their put options and sold their redeemable noncontrolling interest share | entity	1
Net Investment Hedging [Member]
Fair value of assets and liabilities measured on recurring basis
Number of forward contracts | contract	0	0
Cash Flow Hedging
Fair value of assets and liabilities measured on recurring basis
Number of forward contracts | contract	0	0
Fair value measurements recurring basis
Fair value of assets and liabilities measured on recurring basis
Short-term investments	$ 18.4	$ 185.2
Long-term investments	0.3	0.4
Forward contracts	(1.1)	(0.5)
Redeemable noncontrolling interests	(8.7)	(30.7)
Total asset	8.9	154.4
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	0.0
Redeemable noncontrolling interests	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	18.4	185.2
Long-term investments	0.3	0.4
Forward contracts	(1.1)	(0.5)
Redeemable noncontrolling interests	0.0	0.0
Total asset	17.6	185.1
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	0.0
Redeemable noncontrolling interests	(8.7)	(30.7)
Total liability	$ (8.7)	$ (30.7)