Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on Gross Basis (Detail) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 129.0	$ 119.1
Derivative Liabilities	138.9	154.6
Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		2.6
Foreign Exchange Forward Contracts [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets		5.2
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	52.4	50.7
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets		5.2
Foreign Exchange Forward Contracts [Member] | Other Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	22.3	18.7
Foreign Exchange Forward Contracts [Member] | Other Current Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	17.1	24.9
Foreign Exchange Forward Contracts [Member] | Other Current Liabilities [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		2.6
Foreign Exchange Forward Contracts [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	5.8	7.9
Cross-currency Interest Rate Swaps [Member] | Other Current Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	54.3	29.0
Cross-currency Interest Rate Swaps [Member] | Other Current Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		9.4
Cross-currency Interest Rate Swaps [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	1.9	0.0
Interest Rate Swap [Member] | Other Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets		20.7
Interest Rate Swap [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 114.1	$ 112.4