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Earnings Per Share
 3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
4. EARNINGS PER SHARE

The following table sets forth the details of basic and diluted earnings per share (EPS):

 

                 
    Three months ended
March 31		  

In thousands, except per share

   2013     2012  

Net income

   $ 15,629     $ 18,878  
   

 

 

    

 

 

  

Weighted average common shares outstanding used in basic EPS

     42,966       42,751  

Common shares issuable upon exercise of dilutive stock options and PSAs / RSUs

     955       716  
   

 

 

    

 

 

  

Weighted average common shares outstanding and common share equivalents used in diluted EPS

     43,921       43,467  
   

 

 

    

 

 

  
     

Earnings per share

                

Basic

   $ 0.36     $ 0.44  

Diluted

     0.36       0.43  

The following table sets forth potential common shares outstanding for stock options and restricted stock units that were not included in the computation of diluted EPS for the period indicated, because their effect would be anti-dilutive:

 

                 
    March 31  

In thousands

   2013     2012  

Potential common shares

     —         589