Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases
Operating lease payment	$ 5.6	$ 5.5	$ 7.7
Operating lease, expense	5.6	$ 5.5	7.7
Operating lease, liability	$ 22.5
Operating lease, weighted average remaining lease term	14 years	15 years
Operating lease, weighted average discount rate	5.00%	5.00%
New Operating Leases
Leases
Operating lease, liability	$ 4.6	$ 6.6	$ 3.8
Leverkusen Facility Land Lease
Leases
Agreements expiry period	2050
Current Tio2 production capacity in Leverkusen facility	33.00%
Operating lease, liability	$ 7.4