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Net Income Per Share
 6 Months Ended
Apr. 30, 2012
Net Income Per Share [Abstract]  
Net Income Per Share

Note 12. Net Income per Share

The Company computes basic net income per share by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income per share reflects the dilution of potential common shares outstanding such as stock options and unvested restricted stock units and awards during the period using the treasury stock method.

The table below reconciles the weighted-average common shares used to calculate basic net income per share with the weighted-average common shares used to calculate diluted net income per share.

 

                                 
    Three Months Ended
April 30,		      Six Months Ended
April 30,		  
     2012      2011      2012      2011  
     (in thousands)  

Numerator:

                                    

Net income

    $ 20,971       $ 81,114       $ 77,665       $ 129,340   

Denominator:

                                    

Weighted-average common shares for basic net income per share

      145,948         148,461         144,877         148,738   

Dilutive effect of potential common shares from equity-based compensation

      3,349         4,132         3,382         4,460   
    

 

 

     

 

 

     

 

 

     

 

 

  

Weighted-average common shares for diluted net income per share

      149,297         152,593         148,259         153,198   
    

 

 

     

 

 

     

 

 

     

 

 

  

Anti-dilutive employee stock-based awards excluded(1)

      3,123         2,518         3,312         3,288   

(1) These stock options and unvested restricted stock units and restricted stock awards were anti-dilutive for the respective periods and are excluded in calculating diluted net income per share. While such awards were anti-dilutive for the respective periods, they could be dilutive in the future.