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Net Income Per Share (Tables)
 6 Months Ended
Jun. 30, 2011
Net Income Per Share  
Reconciliation Of Denominator Of Net Income Per Share
     Three Months Ended
June  30		      Six Months Ended
June 30		  
     2011      2010      2011      2010  

Shares used in computing basic net income per share

      88,320         89,434         90,301         89,548   

Dilutive effect of stock options and restricted stock units (1)

     2,043         2,486         2,441         2,587   
  

 

 

     

 

 

     

 

 

     

 

 

  

Shares used in computing diluted net income per share

      90,363         91,920         92,742         92,135   
  

 

 

     

 

 

     

 

 

     

 

 

  

(1) Options to purchase 4.8 million and 5.8 million shares of common stock were outstanding during the three months ended June 30, 2011 and 2010, respectively, and 2.8 million and 5.5 million shares of common stock during the six months ended June 30, 2011 and 2010, respectively, were outstanding but were not included in the computation of diluted net income per share as inclusion would have been anti-dilutive.