Goodwill and Other Identifiable Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 13.9	$ 13.5	$ 42.4	$ 40.4
Impairment of intangible assets	$ 0.0	$ 0.0	$ 30.9	$ 0.0