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		6 Months Ended
	May 02, 2015	May 03, 2014	May 02, 2015	May 03, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 16,075	$ 21,052	$ 40,157	$ 39,640
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	1,986	3,474	5,802	6,617
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	3,080	4,422	8,013	8,757
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	7,207	8,462	17,050	15,227
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 3,802	$ 4,694	$ 9,292	$ 9,039