Condensed Consolidated Statement of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Net Sales	$ 201,183	$ 186,915	$ 396,092	$ 364,992
Cost of goods sold	129,348	115,514	253,370	225,610
Gross profit	71,835	71,401	142,722	139,382
Selling, general and administrative expenses	49,594	48,700	97,648	96,843
Combination-related expenses	4,338	0	13,413	0
Operating income	17,903	22,701	31,661	42,539
Other expense, net	(1,571)	(337)	(1,676)	(235)
Interest Expense	(780)	(727)	(1,436)	(1,468)
Interest Income	540	545	1,063	893
Income Before Taxes and Equity in Net Income of Associated Companies	16,092	22,182	29,612	41,729
Taxes on income before equity in net income of associated companies	4,224	7,238	11,089	13,543
Income before equity in net income of associated companies	11,868	14,944	18,523	28,186
Equity in net income of associated companies	473	461	1,432	563
Net Income	12,341	15,405	19,955	28,749
Less: Net income attributable to noncontrolling interest	435	390	1,057	788
Net Income Attributable to Quaker Chemical Corporation	$ 11,906	$ 15,015	$ 18,898	$ 27,961
Per share data:
Basic Earnings Per Common Share	$ 0.9	$ 1.13	$ 1.42	$ 2.11
Diluted Earnings per Common Share	0.89	1.13	1.42	2.11
Dividends Declared	$ 0.355	$ 0.345	$ 0.7	$ 0.665