Goodwill And Intangible Assets (Schedule Of Amortization Of Intangible Assets Included On Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 30, 2016	May. 02, 2015	Apr. 30, 2016	May. 02, 2015
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization		$ 4,369	$ 2,775	$ 8,702	$ 3,550
Payments to Acquire Intangible Assets				0	7,750
Cost of revenues
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization		3,193	1,857	6,348	2,494
Other Operating Income (Expense)
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization		902	627	1,804	765
General and administrative
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization	[1]	$ 274	$ 291	$ 550	$ 291

[1] The amortization is related to the $7.8 million of perpetual, non-exclusive license to certain patents purchased during the fiscal year ended October 31, 2015.