Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative translation adjustments	$ (229.0)	$ (322.3)
Market value of derivative financial instruments, net of tax	(39.2)	45.7
Accumulated other comprehensive income (loss)	$ (268.2)	$ (276.6)

Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant