Derivative Instruments and Hedging Activities - Carrying Values of Derivative Instruments (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Cash Flow Hedging | Foreign currency contracts
Derivative [Line Items]
Derivative, Notional Amount	$ 167.8	$ 193.7
Cash Flow Hedging | Interest rate contracts
Derivative [Line Items]
Derivative, Notional Amount	400.0	400.0
Cash Flow Hedging | Foreign currency contracts
Derivative [Line Items]
Derivative, Notional Amount	17.2	62.5
Cash Flow Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	585.0	656.2
Fair Value — Assets	3.1	6.9
Fair Value — Liabilities	(0.7)	(8.4)
Designated as Hedging Instrument | Foreign currency contracts | Prepaid Expenses and Other Current Assets
Derivative [Line Items]
Fair Value — Assets	2.7	5.9
Designated as Hedging Instrument | Foreign currency contracts | Other Current Liabilities
Derivative [Line Items]
Fair Value — Liabilities	(0.6)	(6.8)
Designated as Hedging Instrument | Interest rate contracts | Prepaid Expenses and Other Current Assets
Derivative [Line Items]
Fair Value — Assets	0.0	1.0
Designated as Hedging Instrument | Interest rate contracts | Other Current Liabilities
Derivative [Line Items]
Fair Value — Liabilities	0.0	0.0
Designated as Hedging Instrument | Foreign currency contracts | Prepaid Expenses and Other Current Assets
Derivative [Line Items]
Fair Value — Assets	0.4	0.0
Designated as Hedging Instrument | Foreign currency contracts | Other Current Liabilities
Derivative [Line Items]
Fair Value — Liabilities	$ (0.1)	$ (1.6)