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Basic and Diluted Earnings Per Share (Tables)
 3 Months Ended
Jul. 31, 2012
Basic And Diluted Earnings Per Share

The following table summarizes basic and diluted earnings per share calculations:

 

     Three Months Ended
July 31,		  
     2012      2011  
     (in thousands, except per share data)  

Net earnings attributable to common stockholders:

    $ 10,418       $ 15,411   
  

 

 

     

 

 

  

Weighted-average common shares outstanding:

      

Basic weighted-average number of common shares outstanding

      46,810         45,969   

Effect of dilutive securities:

      

Restricted stock

      661         844   

Stock options

      184         483   

ESPP

      —           3   
  

 

 

     

 

 

  

Diluted weighted-average number of common shares outstanding

      47,655         47,299   
  

 

 

     

 

 

  

Net earnings per common share:

      

Basic earnings per share

    $ 0.22       $ 0.34   
  

 

 

     

 

 

  

Diluted earnings per share

    $ 0.22       $ 0.33