Accounting For Stock-Based Compensation (Tables)

3 Months Ended

Oct. 31, 2015

Share-based Compensation [Abstract]

Summary Of Stock Option Activity

The following table summarizes stock option activity during the nine months ended October 31, 2015:

	Options Outstanding		Weighted Average Exercise Price
Outstanding at July 31, 2015	7,191,442		$	29.38
Granted	—		—
Exercised	(85,599	)	18.89
Canceled	(128,356	)	37.77
Outstanding at October 31, 2015	6,977,487		$	29.36

Summary Of Information Concerning Outstanding And Exercisable Options

The following table summarizes information concerning outstanding and exercisable options as of October 31, 2015:

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 $17.69	1,296,997	1.78	$	17.10	1,296,997	$	17.10
$17.70 to $23.69	1,432,462	3.26	21.47		1,432,462	21.47
$23.70 to $29.69	803,268	5.09	29.12		803,268	29.12
$29.70 to $35.69	1,668,317	6.44	34.22		1,418,936	34.32
$35.70 and above	1,776,443	8.52	40.21		312,549	41.86
	6,977,487	5.29	29.36		5,264,212	26.24