Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 6.0	$ (8.4)	$ 14.2	$ (10.0)
Valuation allowance	4.0		4.0		$ 4.0
Reserve for uncertain tax benefits increase due to state tax settlements and related accrued interest	$ 1.9		$ 1.9		$ 1.6

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details