Earnings Per Share - Diluted (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net Income Attributable to Quaker Chemical Corporation	$ 10,378,000	$ 12,730,000
Less: Income Allocated to Participating Securities	(96,000)	(112,000)
Net Income Available to Common Shareholders	$ 10,282,000	$ 12,618,000
Basic Weighted Average Common Shares Outstanding	13,188,761	13,091,503
Effect of Dilutive Securities	19,896	19,649
Diluted Weighted Average Common Shares Outstanding	13,208,657	13,111,152
Diluted Earnings per Common Share	$ 0.78	$ 0.96