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Shareholders' Equity (Tables)
 12 Months Ended
Jul. 31, 2015
Stockholders' Equity Note [Abstract]  
Schedule Of Treasury Stock

 

 

 

 

 

2015

 

2014

Beginning balance
11,237,522 

 
5,490,725 

Stock repurchases
6,675,147 

 
6,795,545 

Net issuance upon exercise of stock options
(773,385)

 
(863,249)

Issuance under compensation plans
(85,611)

 
(175,160)

Other activity
(8,723)

 
(10,339)

Ending balance
17,044,950 

 
11,237,522