Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Nov. 03, 2018
Intangible Assets
Gross Intangible	$ 773,950	$ 751,472
Accumulated Amortization	(677,303)	(638,691)
Net Intangible	96,647	112,781
Amortization of intangible assets	38,619	35,136	$ 25,806
Expected future amortization of finite-lived intangible assets
2021	35,452
2022	29,232
2023	14,422
2024	11,371
2025	6,170
Net Intangible	96,647	112,781
Developed technology
Intangible Assets
Gross Intangible	395,726	373,526
Accumulated Amortization	(335,512)	(308,261)
Net Intangible	60,214	65,265
Expected future amortization of finite-lived intangible assets
Net Intangible	60,214	65,265
Patents and licenses
Intangible Assets
Gross Intangible	3,565	3,565
Accumulated Amortization	(2,529)	(2,244)
Net Intangible	1,036	1,321
Expected future amortization of finite-lived intangible assets
Net Intangible	1,036	1,321
Customer relationships, covenants not to compete, outstanding purchase orders and contracts
Intangible Assets
Gross Intangible	374,659	374,381
Accumulated Amortization	(339,262)	(328,186)
Net Intangible	35,397	46,195
Expected future amortization of finite-lived intangible assets
Net Intangible	$ 35,397	$ 46,195