Goodwill and Other Identifiable Intangible Assets - Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Acquired Intangible Assets by Major Class [Line Items]
Impairment charges, excluding goodwill	$ 0.0	$ 0.0	$ 2.7
Finite-life intangibles, cost	1,235.3	1,195.9
Accumulated amortization	(448.6)	(405.0)
Finite-life intangibles, net	786.7	790.9
Indefinite-life intangibles	247.1	251.5
Total intangibles, cost	1,482.4	1,447.4
Total intangibles, net	1,033.8	1,042.4
Amortization	54.3	55.3	$ 52.5
Customer relationships
Acquired Intangible Assets by Major Class [Line Items]
Finite-life intangibles, cost	1,146.5	1,106.2
Accumulated amortization	(400.2)	(361.8)
Finite-life intangibles, net	746.3	744.4
Proprietary technology and patents
Acquired Intangible Assets by Major Class [Line Items]
Finite-life intangibles, cost	88.8	89.7
Accumulated amortization	(48.4)	(43.2)
Finite-life intangibles, net	$ 40.4	$ 46.5