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Net Income Per Share
 12 Months Ended
Jul. 31, 2013
Earnings Per Share [Abstract]  
Net Income Per Share
(13)
   Net Income Per Share
 
The table below reconciles weighted average shares outstanding to weighted average shares and dilutive potential share outstanding (in thousands):
     Years Ended July 31,   
     2013   2012   2011
Weighted average common shares outstanding
                  124,912             128,120             151,298   
Effect of dilutive securities-stock options
                  4,869             3,308             2,054   
Diluted weighted average common shares outstanding
                  129,781             131,428             153,352   
 
There were no adjustments to net income required in calculating diluted net income per share. Excluded from the dilutive earnings per share calculation were 298,408, 2,208,047 and 5,107,978 options to purchase the Company’s common stock that were outstanding at July 31, 2013, 2012 and 2011, respectively, because their effect would have been anti-dilutive.