Revenue from Contracts with Customers - Summary of Geographic Disaggregation of Net Sales (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation Of Revenue [Line Items]
Net sales	[1]	$ 2,345,966	$ 1,869,750	$ 1,858,745
Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales		713,440	452,277	512,347
Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales		69,731	65,787	73,675
Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales		1,562,795	1,351,686	1,272,723
North America [Member]
Disaggregation Of Revenue [Line Items]
Net sales		1,328,312	1,148,996	1,142,391
North America [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales		364,382	265,700	314,549
North America [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales		59,461	56,455	61,501
North America [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales		904,469	826,841	766,341
Europe [Member]
Disaggregation Of Revenue [Line Items]
Net sales		600,024	391,252	411,340
Europe [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales		302,137	147,289	158,455
Europe [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales		9,152	9,332	12,174
Europe [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales		288,735	234,631	240,711
Latin America [Member]
Disaggregation Of Revenue [Line Items]
Net sales		304,542	237,066	215,709
Latin America [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales		3,823	2,498	3,304
Latin America [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales		1,118
Latin America [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales		299,601	234,568	212,405
Asia [Member]
Disaggregation Of Revenue [Line Items]
Net sales		113,088	92,436	89,305
Asia [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales		43,098	36,790	36,039
Asia [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales		$ 69,990	$ 55,646	$ 53,266

[1] Net sales are attributed to countries based on the location of the Company legal entity making the sale.