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Earnings Per Share
3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Earnings Per Share
11.   Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for continuing operations for the three months ended March 31, 2013 and 2012 (in thousands, except per share data).

 

                 
    Three Months Ended
March 31,
 
    2013     2012  

Numerator:

               

Income from continuing operations after income tax expense

  $ 18,283     $ 18,767  
   

 

 

   

 

 

 

Denominator:

               

Basic

               

Weighted average common shares outstanding

    49,417       49,103  
   

 

 

   

 

 

 

Diluted

               

Stock options (1)

    25       —    

Restricted stock awards (1)

    342       310  

Contingent shares (2)

    52       118  
   

 

 

   

 

 

 

Diluted weighted average common shares outstanding

    49,836       49,531  
   

 

 

   

 

 

 

Basic earnings per share from continuing operations

  $ 0.37     $ 0.38  
   

 

 

   

 

 

 

Diluted earnings per share from continuing operations

  $ 0.37     $ 0.38  
   

 

 

   

 

 

 

 

  (1) A total of 7.4 million stock-based awards were excluded from the calculation of diluted earnings per share for the three months ended March 31, 2013 and 2012, as their effect would be anti-dilutive.
  (2) Contingent shares represent additional shares to be issued for purchase price earned by former owners of businesses acquired by CBIZ once future conditions have been met.