Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 11,704	$ 16,351	$ 31,659	$ 45,100
Currency Translation Adjustments	5,764	(715)	18,528	(1,074)
Defined Benefit Retirement Plans	62	460	2,171	1,641
Unrealized gain on Available-for-Sale Securities	286	195	453	808
Other Comprehensive income (loss)	6,112	(60)	21,152	1,375
Comprehensive Income	17,816	16,291	52,811	46,475
Less: Comprehensive Income Attributable to Noncontrolling Interest	(409)	(520)	(2,037)	(1,217)
Comprehensive Income Attributable to Quaker Chemical Corporation	$ 17,407	$ 15,771	$ 50,774	$ 45,258