Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Three Months Ended				Six Months Ended
			June 30,				June 30,
		2013		2012		2013		2012
Basic earnings per common share
	Net income attributable to Quaker Chemical Corporation	$	16,083	$	11,108	$	29,702	$	23,473
	Less: income allocated to participating securities		(139)		(106)		(249)		(302)
	Net income available to common shareholders	$	15,944	$	11,002	$	29,453	$	23,171
	Basic weighted average common shares outstanding		13,037,822		12,850,917		13,019,991		12,790,799
Basic earnings per common share		$	1.22	$	0.86	$	2.26	$	1.81
Diluted earnings per common share
	Net income attributable to Quaker Chemical Corporation	$	16,083	$	11,108	$	29,702	$	23,473
	Less: income allocated to participating securities		(138)		(106)		(248)		(301)
	Net income available to common shareholders	$	15,945	$	11,002	$	29,454	$	23,172
	Basic weighted average common shares outstanding		13,037,822		12,850,917		13,019,991		12,790,799
	Effect of dilutive securities and employee stock options		24,918		80,913		27,314		88,838
	Diluted weighted average common shares outstanding		13,062,740		12,931,830		13,047,305		12,879,637
Diluted earnings per common share		$	1.22	$	0.85	$	2.26	$	1.80