Revenue from Contracts with Customers - Summary of Geographic Disaggregation of Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Net sales	$ 719,185	$ 602,688	$ 2,146,094	$ 1,735,939
Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	474,861	387,734	1,428,211	1,142,672
Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	214,807	198,841	640,771	539,764
Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	29,517	16,113	77,112	53,503
North America [Member]
Disaggregation Of Revenue [Line Items]
Net sales	425,919	335,449	1,245,448	976,253
North America [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	272,557	217,481	824,095	660,061
North America [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	128,992	104,055	357,303	270,524
North America [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	24,370	13,913	64,050	45,668
Europe [Member]
Disaggregation Of Revenue [Line Items]
Net sales	167,180	158,057	533,248	450,161
Europe [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	86,344	73,199	269,952	209,632
Europe [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	76,022	82,872	251,229	233,625
Europe [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	4,814	1,986	12,067	6,904
Latin America [Member]
Disaggregation Of Revenue [Line Items]
Net sales	99,727	82,473	286,179	225,303
Latin America [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	98,313	81,164	281,734	221,301
Latin America [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	1,081	1,095	3,450	3,071
Latin America [Member] | Specialty Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	333	214	995	931
Asia [Member]
Disaggregation Of Revenue [Line Items]
Net sales	26,359	26,709	81,219	84,222
Asia [Member] | Surfactants [Member]
Disaggregation Of Revenue [Line Items]
Net sales	17,647	15,890	52,430	51,678
Asia [Member] | Polymers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 8,712	$ 10,819	$ 28,789	$ 32,544