Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 29, 2017	Apr. 30, 2016	Apr. 29, 2017	Apr. 30, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	$ 26,289	$ 24,789	$ 71,803	$ 48,833
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	3,234	3,531	8,884	6,436
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	6,631	5,123	18,705	10,599
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	9,779	11,052	26,594	22,130
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	$ 6,645	$ 5,083	$ 17,620	$ 9,668