Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 286,040	$ 205,869	$ 664,601	$ 417,079
Cost of goods sold	188,654	130,708	433,364	266,151
Gross profit	97,386	75,161	231,237	150,928
Selling, general and administrative expenses	86,667	50,026	185,368	101,481
Indefinite-lived intangible asset impairment	0	0	38,000	0
Restructuring and related charges	486	0	2,202	0
Combination, integration and other acquisition-related expenses	7,995	4,604	15,873	9,087
Operating income (loss)	2,238	20,531	(10,206)	40,360
Other (expense)income, net	(993)	43	(22,168)	(592)
Interest expense, net	(6,811)	(733)	(15,272)	(1,509)
(Loss) income before taxes and equity in net income of associated companies	(5,566)	19,841	(47,646)	38,259
Taxes on (loss) income before equity in net income of associated companies	3,222	4,800	(9,848)	9,729
(Loss) income before equity in net income of associated companies	(8,788)	15,041	(37,798)	28,530
Equity in net income of associated companies	1,066	608	1,732	1,019
Net (loss) income	(7,722)	15,649	(36,066)	29,549
Less: Net income attributable to noncontrolling interest	13	58	50	114
Net (loss) income attributable to Quaker Chemical Corporation	$ (7,735)	$ 15,591	$ (36,116)	$ 29,435
Per share data:
Basic (loss) earnings per common share	$ (0.43)	$ 1.17	$ (2.03)	$ 2.21
Diluted (loss) earnings per common share	(0.43)	1.17	(2.03)	2.20
Dividends Declared	$ 0.385	$ 0.385	$ 0.770	$ 0.755