Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Goodwill [Line Items]
Goodwill, Beginning Balance		$ 100,654	$ 31,439
Accumulated impairment loss, Beginning Balance		(3,467)	(3,467)
Goodwill net, Beginning Balance		97,187	27,972
Goodwill acquired	[1]	1,792	72,467
Goodwill measurement period adjustment	[1]		940
Goodwill impairment		(978)
Foreign currency translation		(2,079)	(4,192)
Goodwill, Ending Balance		100,367	100,654
Accumulated impairment loss, Ending Balance		(4,445)	(3,467)
Goodwill net, Ending Balance		95,922	97,187
Surfactants Segment [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance		25,689	25,537
Accumulated impairment loss, Beginning Balance		(3,467)	(3,467)
Goodwill net, Beginning Balance		22,222	22,070
Goodwill acquired	[1]	1,792
Goodwill measurement period adjustment	[1]		940
Goodwill impairment		(978)
Foreign currency translation		656	(788)
Goodwill, Ending Balance		28,137	25,689
Accumulated impairment loss, Ending Balance		(4,445)	(3,467)
Goodwill net, Ending Balance		23,692	22,222
Polymer Segment [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance		74,482	5,419
Goodwill net, Beginning Balance		74,482	5,419
Goodwill acquired	[1]		72,467
Foreign currency translation		(2,735)	(3,404)
Goodwill, Ending Balance		71,747	74,482
Goodwill net, Ending Balance		71,747	74,482
Specialty Products Segment [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance		483	483
Goodwill net, Beginning Balance		483	483
Goodwill, Ending Balance		483	483
Goodwill net, Ending Balance		$ 483	$ 483

[1] See Note 20, Acquisitions, of the notes to the Company’s consolidated financial statements (included in Item 8 of this Form 10-K) for information regarding the goodwill acquired in a business combination.