Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 26, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 88,528	$ 84,914	$ 73,618
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	12,946	14,963	14,519
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	18,714	18,635	17,509
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	38,340	31,650	29,425
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 18,528	$ 19,666	$ 12,165