Goodwill And Intangible Assets (Schedule Of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2015	Nov. 01, 2014
Finite-Lived Intangible Assets
Gross Carrying Value		$ 74,570	$ 14,560	[1]
Accumulated Amortization		14,057	3,012	[1]
Net Carrying Value	[2],[3]	$ 60,513	$ 11,548	[1]
Weighted-Average Remaining Useful Life		6 years 6 months 18 days	4 years 1 month 6 days	[1]
Cost of Fully Amortized Intangible Assets			$ 477,300
Trade names
Finite-Lived Intangible Assets
Gross Carrying Value		$ 1,090	590
Accumulated Amortization		415	227
Net Carrying Value		$ 675	$ 363
Weighted-Average Remaining Useful Life		4 years 4 months 10 days	3 years
Core/developed technology
Finite-Lived Intangible Assets
Gross Carrying Value		$ 40,530	$ 12,080
Accumulated Amortization		9,605	1,964
Net Carrying Value		$ 30,925	$ 10,116
Weighted-Average Remaining Useful Life		3 years 5 months 26 days	4 years 3 months 18 days
Patent portfolio license (1)
Finite-Lived Intangible Assets
Gross Carrying Value	[4]	$ 7,750
Accumulated Amortization	[4]	849
Net Carrying Value	[4]	$ 6,901
Weighted-Average Remaining Useful Life	[4]	17 years 8 months 26 days
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Value		$ 23,110	$ 1,080
Accumulated Amortization		2,484	427
Net Carrying Value		$ 20,626	$ 653
Weighted-Average Remaining Useful Life		7 years 2 months 5 days	3 years 4 days
Non-compete agreements
Finite-Lived Intangible Assets
Gross Carrying Value		$ 1,050	$ 810
Accumulated Amortization		664	394
Net Carrying Value		$ 386	$ 416
Weighted-Average Remaining Useful Life		1 year 2 months 1 day	2 years 4 days
Patents with broader applications
Finite-Lived Intangible Assets
Gross Carrying Value		$ 1,040
Accumulated Amortization		40
Net Carrying Value		$ 1,000
Weighted-Average Remaining Useful Life		14 years 4 months 17 days

[1] During the fiscal year ended November 1, 2014, $477.3 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet.

[2] During the fiscal year ended October 31, 2015, the Company acquired $52.3 million of intangible assets related to the Company’s acquisition of two businesses. See Note 3, “Acquisitions and Divestitures,” of the Notes to Consolidated Financial Statements.

[3] During the fiscal year ended October 31, 2015, the Company purchased a perpetual, nonexclusive license to certain patents for $7.8 million.

[4] The patent portfolio license was assigned an estimated useful life that reflects the Company’s consumption of the expected defensive benefits related to this license to certain patents. The method of amortization for the patent portfolio license reflects the Company’s estimate of the pattern in which these expected defensive benefits will be used by the Company and is primarily based on the mix of expiration patterns of the individual patents included in the license.