Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 28, 2012	Jan. 29, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 21,819	$ 19,906
Cost Of Revenues [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	4,375	2,860
Research And Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	5,028	4,283
Sales And Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	9,776	8,792
General And Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 2,640	$ 3,971