Other Accrued Liabilities - Summary of Other Accrued Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Other Liabilities Disclosure [Abstract]
Self insurance	$ 6.2	$ 4.0	$ 3.9
Sales incentive programs	5.4	6.8	7.1
Short-term environmental	1.1	1.1	1.1
Other accruals	3.9	3.8	3.0
Other accrued liabilities	$ 16.6	$ 15.7	$ 15.1