Shareholders' Equity (Tables)

12 Months Ended

Jul. 31, 2013

Shareholders' Equity [Abstract]

Schedule Of Treasury Stock

	2013	2012
Beginning balance at August 1, 2012	3,980,832	13,245,864
Stock repurchases	2,986,794	4,503,587
Net issuance upon exercise of stock options	(1,288,560)	(1,270,526)
Issuance under compensation plans	(174,408)	(89,528)
Stock split and other activity	(13,933)	(12,408,565)
Ending balance at July 31, 2013	5,490,725	3,980,832