Revenue from Contracts with Customers - Summary of Geographic Disaggregation of Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation Of Revenue [Line Items]
Net sales	$ 546,842	$ 562,226	$ 1,654,665	$ 1,793,637
Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	382,724	373,836	1,153,339	1,233,351
Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	149,796	169,559	455,061	495,200
Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	14,322	18,831	46,265	65,086
North America [Member]
Disaggregation Of Revenue [Line Items]
Net sales	303,880	329,888	932,268	1,045,921
North America [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	217,809	223,912	667,919	732,530
North America [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	73,999	90,521	223,636	259,839
North America [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	12,072	15,455	40,713	53,552
Europe [Member]
Disaggregation Of Revenue [Line Items]
Net sales	132,138	130,146	400,811	433,007
Europe [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	66,387	60,126	200,625	219,988
Europe [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	63,632	66,752	194,910	201,705
Europe [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	2,119	3,268	5,276	11,314
Latin America [Member]
Disaggregation Of Revenue [Line Items]
Net sales	85,086	76,989	247,411	237,474
Latin America [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	84,609	76,469	246,046	235,784
Latin America [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	346	412	1,089	1,470
Latin America [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	131	108	276	220
Asia [Member]
Disaggregation Of Revenue [Line Items]
Net sales	25,738	25,203	74,175	77,235
Asia [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	13,919	13,329	38,749	45,049
Asia [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 11,819	$ 11,874	$ 35,426	$ 32,186