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Earnings Per Share
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]

Note 7 – Earnings Per Share

The following table summarizes EPS calculations for the years ended December 31, 2013, December 31, 2012 and December 31, 2011:

  December 31, 
  2013 2012 2011 
Basic earnings per common share         
 Net income attributable to Quaker Chemical Corporation$ 56,339  $47,405  $45,892 
 Less: income allocated to participating securities (481)  (526)  (825) 
 Net income available to common shareholders$ 55,858 $46,879 $45,067 
           
 Basic weighted average common shares outstanding 13,044,842  12,871,703  12,159,958 
Basic earnings per common share$4.28 $3.64 $3.71 
           
Diluted earnings per common share         
 Net income attributable to Quaker Chemical Corporation$56,339 $47,405 $45,892 
 Less: income allocated to participating securities (481)  (524)  (817) 
 Net income available to common shareholders$55,858 $46,881 $45,075 
           
 Basic weighted average common shares outstanding 13,044,842  12,871,703  12,159,958 
 Effect of dilutive securities 24,770  58,798  158,215 
 Diluted weighted average common shares outstanding 13,069,612  12,930,501  12,318,173 
Diluted earnings per common share$4.27 $3.63 $3.66 

The following number of stock options are not included in diluted earnings per share since the effect would have been anti-dilutive: 2,863 in 2013, 4,417 in 2012 and 11,683 in 2011.