Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Line Items]
Amortization expense associated with identifiable intangible assets	$ 19.9	$ 19.8	$ 18.6
Estimated total amortization expense 2026	19.7
Estimated total amortization expense 2027	18.3
Estimated total amortization expense 2028	16.7
Estimated total amortization expense 2029	15.8
Estimated total amortization expense 2030	11.1
Indefinite-lived Intangible Assets [Member]
Goodwill [Line Items]
Goodwill and intangible assets with indefinite lives	$ 283.7	$ 236.7