Business and Geographic Segments - Total Assets Held by Business Segments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total assets	$ 2,835.7	$ 3,005.2	$ 2,889.3
Depreciation And Amortization	58.5	59.3	68.5
Capital expenditures	67.6	64.1	65.5
Corporate and eliminations
Segment Reporting Information [Line Items]
Total assets	191.7	226.4	179.3
Chemicals | Operating Segment
Segment Reporting Information [Line Items]
Total assets	2,293.5	2,373.1	2,400.7
Depreciation And Amortization	53.1	52.8	61.9
Capital expenditures	63.2	58.6	62.8
Component Products [Member] | Operating Segment
Segment Reporting Information [Line Items]
Total assets	131.3	146.4	138.0
Depreciation And Amortization	4.0	3.8	3.8
Capital expenditures	3.7	4.1	1.7
Real Estate Management And Development [Member] | Operating Segment
Segment Reporting Information [Line Items]
Total assets	219.2	259.3	171.3
Depreciation And Amortization	1.4	2.7	2.8
Capital expenditures	$ 0.7	$ 1.4	$ 1.0