Fair Value Measurement - Schedule of Financial Assets and Liability by Fair Value Hierarchy Level (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 416.4	$ 63.2
Time Deposits	3.0	3.1
Available for sale debt securities	79.2	69.6
Trading securities	31.7	28.1
Deferred compensation plan liabilities	(31.7)	(28.1)
Derivatives:
Forward exchange contracts-Assets	0.3	1.4
Forward exchange contracts-(Liabilities)	(0.2)
TOTAL	498.7	137.3
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	416.4	63.2
Time Deposits	0.0	0.0
Available for sale debt securities	0.0	0.0
Trading securities	31.7	28.1
Deferred compensation plan liabilities	(31.7)	(28.1)
Derivatives:
Forward exchange contracts-Assets	0.0	0.0
Forward exchange contracts-(Liabilities)	0.0
TOTAL	416.4	63.2
Quoted Prices in Active Markets for Similar Assets (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0.0	0.0
Time Deposits	3.0	3.1
Available for sale debt securities	79.2	69.6
Trading securities	0.0	0.0
Deferred compensation plan liabilities	0.0	0.0
Derivatives:
Forward exchange contracts-Assets	0.3	1.4
Forward exchange contracts-(Liabilities)	(0.2)
TOTAL	82.3	74.1
Unobservable inputs for which little or no market data exists (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0.0	0.0
Time Deposits	0.0	0.0
Available for sale debt securities	0.0	0.0
Trading securities	0.0	0.0
Deferred compensation plan liabilities	0.0	0.0
Derivatives:
Forward exchange contracts-Assets	0.0	0.0
Forward exchange contracts-(Liabilities)	0.0
TOTAL	$ 0.0	$ 0.0