Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Net Income Attributable to Quaker Chemical Corporation	$ 16,008	$ 14,371	$ 43,969	$ 39,787
Less: Income Allocated to Participating Securities	(130)	(121)	(373)	(350)
Net Income Available to Common Shareholders	$ 15,878	$ 14,250	$ 43,596	$ 39,437
Basic Weighted Average Common Shares Outstanding	13,143,884	13,209,119	13,128,996	13,206,122
Effect of Dilutive Securities	29,960	13,333	18,829	16,181
Diluted Weighted Average Common Shares Outstanding	13,173,844	13,222,452	13,147,825	13,222,303
Diluted Earnings per Common Share	$ 1.21	$ 1.08	$ 3.32	$ 2.98