Net Income Per Share (Tables)

6 Months Ended

Apr. 30, 2012

Net Income Per Share [Abstract]

Reconciliation Of Weighted-Average Common Shares Used To Calculate Net Income Per Share

	Three Months Ended April 30,				Six Months Ended April 30,
	2012		2011		2012		2011
	(in thousands)
Numerator:
Net income	$	20,971	$	81,114	$	77,665	$	129,340
Denominator:
Weighted-average common shares for basic net income per share		145,948		148,461		144,877		148,738
Dilutive effect of potential common shares from equity-based compensation		3,349		4,132		3,382		4,460
Weighted-average common shares for diluted net income per share		149,297		152,593		148,259		153,198
Anti-dilutive employee stock-based awards excluded(1)		3,123		2,518		3,312		3,288

(1) These stock options and unvested restricted stock units and restricted stock awards were anti-dilutive for the respective periods and are excluded in calculating diluted net income per share. While such awards were anti-dilutive for the respective periods, they could be dilutive in the future.