Segment and Entity Wide Disclosures - Customer Concentration (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Nov. 03, 2018
Revenue, Major Customer [Line Items]
Revenues	$ 3,532,157	$ 3,572,131	$ 3,094,286
Revenue
Revenue, Major Customer [Line Items]
Percent of revenue	54.50%	59.30%	56.50%
Customer Concentration Risk | Revenue
Revenue, Major Customer [Line Items]
Revenues	$ 373,163	$ 1,219,068	$ 692,589
Customer Concentration Risk | Revenue | AT&T
Revenue, Major Customer [Line Items]
Revenues	$ 373,163	388,704	374,576
Customer Concentration Risk | Revenue | Verizon
Revenue, Major Customer [Line Items]
Revenues		459,787	$ 318,013
Customer Concentration Risk | Revenue | Web-scale provider
Revenue, Major Customer [Line Items]
Revenues		$ 370,577