Accounting For Stock-Based Compensation (Tables)

3 Months Ended

Oct. 31, 2012

Accounting For Stock-Based Compenstation [Abstract]

Summary Of Stock Option Activity

	Options Outstanding			Weighted Average Exercise Price
Outstanding at July 31, 2012		8,056,327		$	20.97
Granted		53,423			35.50
Exercised		(795,437	)		14.50
Canceled		(8,498	)		31.09
Outstanding at October 31, 2012		7,305,815			21.77

Summary Of Information Concerning Outstanding And Exercisable Options

Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$0.00 to $12.89		165,400		0.11	$	8.96		165,400	$	8.96
$12.90 to $16.89		2,207,062		2.17		15.56		2,207,062		15.56
$16.90 to $20.89		1,447,643		5.07		17.84		1,447,643		17.84
$20.90 to $24.89		1,424,624		6.51		21.75		1,255,820		21.84
$24.90 and above		2,061,086		8.20		32.21		444,501		30.78
		7,305,815		5.25		21.77		5,520,426		18.61