Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 28, 2017	Jan. 30, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	$ 45,513	$ 24,044
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	5,650	2,905
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	12,074	5,476
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	16,814	11,078
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	$ 10,975	$ 4,585