Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 27, 2013	Jul. 28, 2012	Jul. 27, 2013	Jul. 28, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 18,769	$ 13,069	$ 57,091	$ 58,746
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	3,858	3,074	11,345	12,045
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	4,020	3,110	13,205	13,741
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	7,164	4,483	23,321	24,946
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 3,727	$ 2,402	$ 9,220	$ 8,014