Goodwill And Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Jan. 30, 2016		Oct. 31, 2015
Intangible Assets
Gross Carrying Value		$ 85,790		$ 74,570
Accumulated Amortization		17,350		14,057
Net Carrying Value		$ 68,440		$ 60,513
Weighted- Average Remaining Useful Life (in years)		6 years 1 month 13 days		6 years 6 months 18 days
Indefinite-Lived Intangible Assets (Excluding Goodwill)		$ 2,850		$ 15,110
Intangible Assets, Gross (Excluding Goodwill)		88,640		89,680
Intangible assets, net		71,290		75,623
Indefinite-lived Intangible Assets, Period Increase (Decrease)		$ 12,300
UsefulLifeofCompletedIPRD		5 years
CostofFullyAmortizedIntangibleAssets		$ 1,000
In Process Research and Development [Member]
Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[1]	2,850		15,110
Trade names
Intangible Assets
Gross Carrying Value		1,090		1,090
Accumulated Amortization		471		415
Net Carrying Value		$ 619		$ 675
Weighted- Average Remaining Useful Life (in years)		4 years 2 months 23 days		4 years 4 months 10 days
Core/developed technology (1) (2)
Intangible Assets
Gross Carrying Value	[2]	$ 51,750	[1]	$ 40,530
Accumulated Amortization	[2]	11,719	[1]	9,605
Net Carrying Value	[2]	$ 40,031	[1]	$ 30,925
Weighted- Average Remaining Useful Life (in years)	[2]	3 years 8 months 12 days	[1]	3 years 5 months 26 days
Patent portfolio license (3)
Intangible Assets
Gross Carrying Value	[3]	$ 7,750		$ 7,750
Accumulated Amortization	[3]	1,125		849
Net Carrying Value	[3]	$ 6,625		$ 6,901
Weighted- Average Remaining Useful Life (in years)	[3]	17 years 5 months 26 days		17 years 8 months 26 days
Customer relationships
Intangible Assets
Gross Carrying Value		$ 23,110		$ 23,110
Accumulated Amortization		3,233		2,484
Net Carrying Value		$ 19,877		$ 20,626
Weighted- Average Remaining Useful Life (in years)		6 years 11 months 8 days		7 years 2 months 5 days
Non-compete agreements
Intangible Assets
Gross Carrying Value		$ 1,050		$ 1,050
Accumulated Amortization		744		664
Net Carrying Value		$ 306		$ 386
Weighted- Average Remaining Useful Life (in years)		11 months 5 days		1 year 2 months 1 day
Patents with broader applications
Intangible Assets
Gross Carrying Value		$ 1,040		$ 1,040
Accumulated Amortization		58		40
Net Carrying Value		$ 982		$ 1,000
Weighted- Average Remaining Useful Life (in years)		14 years 1 month 17 days		14 years 4 months 17 days

[1] Acquired IPR&D are intangible assets accounted for as indefinite-lived assets until the completion or abandonment of the associated research and development efforts. If the research and development efforts associated with the IPR&D are successfully completed, then the IPR&D intangible assets will be amortized over the estimated useful lives to be determined as of the date the efforts are completed. During the three months ended January 30, 2016, research and development efforts were completed on $12.3 million of the IPR&D intangible assets, and the completed IPR&D intangible assets are being amortized as Core/developed technology over an estimated useful life of five years. The research and development efforts associated with the remaining IPR&D intangible assets are expected to be completed in the second quarter of fiscal year 2016.

[2] During the three months ended January 30, 2016, $1.0 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet.

[3] 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.