Earnings Per Share - Basic (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Net Income Attributable to Quaker Chemical Corporation	$ 14,371	$ 15,696	$ 39,787	$ 43,853
Less: Income Allocated to Participating Securities	(121)	(140)	(351)	(385)
Net Income Available to Common Shareholders	$ 14,250	$ 15,556	$ 39,436	$ 43,468
Basic Weighted Average Common Shares Outstanding	13,209,119	13,133,668	13,206,122	13,114,553
Basic Earnings Per Common Share	$ 1.08	$ 1.18	$ 2.99	$ 3.31