Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Salaries, wages and employee benefits	$ 56.0	$ 51.6
Interest	4.2	4.4
Environmental	8.2	10.4
Income taxes	10.0	10.7
Taxes other than income	5.1	4.6
Operating lease liability	10.0	9.2
Other	26.1	29.3
Total accrued expenses	$ 119.6	$ 120.2