Income Taxes - Summary of Components of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 76.9	$ 87.8	$ 91.5
Foreign	3.0	5.8	7.2
State	24.8	29.0	32.6
Total current taxes	104.7	122.6	131.3
Deferred:
Federal	13.7	22.0	25.5
Foreign	1.7	0.6	(0.6)
State	3.9	5.9	5.1
Total deferred taxes	19.3	28.5	30.0
Provision for (benefit from) income taxes	$ 124.0	$ 151.1	$ 161.3