Derivatives and Financial Instruments - Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities	$ (16.3)	$ (70.0)
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	2.5	0.2
Foreign currency contract liabilities	(16.3)	(70.0)
Deferred compensation plan assets	29.4	26.1
Contingent earn-out liabilities	8.0
Total recurring fair value measurements	25.5	(43.4)
Fair Value, Measurements, Recurring | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contract assets	1.9	0.3
Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	0.0	0.0
Foreign currency contract liabilities	0.0	0.0
Deferred compensation plan assets	15.0	12.1
Contingent earn-out liabilities	0.0
Total recurring fair value measurements	15.0	12.1
Level 1 | Fair Value, Measurements, Recurring | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contract assets	0.0	0.0
Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	2.5	0.2
Foreign currency contract liabilities	(16.3)	(70.0)
Deferred compensation plan assets	0.0	0.0
Contingent earn-out liabilities	0.0
Total recurring fair value measurements	(11.9)	(69.5)
Level 2 | Fair Value, Measurements, Recurring | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contract assets	1.9	0.3
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	0.0	0.0
Foreign currency contract liabilities	0.0	0.0
Deferred compensation plan assets	0.0	0.0
Contingent earn-out liabilities	8.0
Total recurring fair value measurements	8.0	0.0
Level 3 | Fair Value, Measurements, Recurring | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contract assets	0.0	0.0
NAV | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	0.0	0.0
Foreign currency contract liabilities	0.0	0.0
Deferred compensation plan assets	14.4	14.0
Contingent earn-out liabilities	0.0
Total recurring fair value measurements	14.4	14.0
NAV | Fair Value, Measurements, Recurring | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contract assets	$ 0.0	$ 0.0