Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee Lease Description [Line Items]
Operating lease payment	$ 7.7	$ 7.6
Operating lease, expense	7.7	7.6
Operating lease right-of-use assets	19.9	$ 26.1
Operating lease, liability	$ 19.5
Operating lease, weighted average remaining lease term	17 years	15 years
Operating lease, weighted average discount rate	5.00%	4.80%
New Operating Leases
Lessee Lease Description [Line Items]
Operating lease, liability	$ 3.8	$ 2.5
Leverkusen Facility Land Lease
Lessee Lease Description [Line Items]
Agreements expiry period	2050
Current Tio2 production capacity in Leverkusen facility	33.00%
Operating lease, liability	$ 6.9