Earnings Per Share

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

Note 9 – Earnings Per Share

The following table summarizes earnings per share calculations for the years ended December 31,2017, 2016 and 2015:

		2017		2016		2015
Basic earnings per common share
	Net income attributable to Quaker Chemical Corporation	$	20,278	$	61,403	$	51,180
	Less: income allocated to participating securities		(137)		(515)		(443)
	Net income available to common shareholders	$	20,141	$	60,888	$	50,737
	Basic weighted average common shares outstanding		13,204,872		13,136,138		13,199,630
Basic earnings per common share		$	1.53	$	4.64	$	3.84
Diluted earnings per common share
	Net income attributable to Quaker Chemical Corporation	$	20,278	$	61,403	$	51,180
	Less: income allocated to participating securities		(137)		(514)		(443)
	Net income available to common shareholders	$	20,141	$	60,889	$	50,737
	Basic weighted average common shares outstanding		13,204,872		13,136,138		13,199,630
	Effect of dilutive securities		41,074		24,331		15,219
	Diluted weighted average common shares outstanding		13,245,946		13,160,469		13,214,849
Diluted earnings per common share		$	1.52	$	4.63	$	3.84

Certain stock options and restricted stock units are not included in the diluted earnings per share calculation since the effect would have been anti-dilutive. The calculated amount of anti-diluted shares not included were3,671 in 2017, 678 in 2016 and 6,684 in 2015.