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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jan. 30, 2021 | Feb. 01, 2020
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 757,130 | $ 832,912
Products and services at a point in time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 599,723 | 680,104
Services transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 157,407 | 152,808
Converged Packet Optical |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 512,324 | 591,549
Routing and Switching |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 64,307 | 67,508
Platform Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 49,839 | 51,888
Blue Planet Automation Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 16,934 | 15,466
Maintenance Support and Training |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 67,630 | 61,793
Installation and Deployment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 39,611 | 34,954
Consulting and Network Design |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 6,485 | 9,754
Networking Platforms |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 576,631 | 659,057
Networking Platforms | Products and services at a point in time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 576,631 | 659,057
Networking Platforms | Services transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Networking Platforms | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 576,631 | 659,057
Networking Platforms | Operating Segments | Converged Packet Optical |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 512,324 | 591,549
Networking Platforms | Operating Segments | Routing and Switching |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 64,307 | 67,508
Networking Platforms | Operating Segments | Platform Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Networking Platforms | Operating Segments | Blue Planet Automation Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Networking Platforms | Operating Segments | Maintenance Support and Training |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Networking Platforms | Operating Segments | Installation and Deployment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Networking Platforms | Operating Segments | Consulting and Network Design |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Platform Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 49,839 | 51,888
Platform Software and Services | Products and services at a point in time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 16,062 | 13,114
Platform Software and Services | Services transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 33,777 | 38,774
Platform Software and Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 49,839 | 51,888
Platform Software and Services | Operating Segments | Converged Packet Optical |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Platform Software and Services | Operating Segments | Routing and Switching |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Platform Software and Services | Operating Segments | Platform Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 49,839 | 51,888
Platform Software and Services | Operating Segments | Blue Planet Automation Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Platform Software and Services | Operating Segments | Maintenance Support and Training |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Platform Software and Services | Operating Segments | Installation and Deployment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Platform Software and Services | Operating Segments | Consulting and Network Design |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Blue Planet Automation Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 16,934 | 15,466
Blue Planet Automation Software and Services | Products and services at a point in time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 5,173 | 3,736
Blue Planet Automation Software and Services | Services transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 11,761 | 11,730
Blue Planet Automation Software and Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 16,934 | 15,466
Blue Planet Automation Software and Services | Operating Segments | Converged Packet Optical |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Blue Planet Automation Software and Services | Operating Segments | Routing and Switching |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Blue Planet Automation Software and Services | Operating Segments | Platform Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Blue Planet Automation Software and Services | Operating Segments | Blue Planet Automation Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 16,934 | 15,466
Blue Planet Automation Software and Services | Operating Segments | Maintenance Support and Training |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Blue Planet Automation Software and Services | Operating Segments | Installation and Deployment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Blue Planet Automation Software and Services | Operating Segments | Consulting and Network Design |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Global Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 113,726 | 106,501
Global Services | Products and services at a point in time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,857 | 4,197
Global Services | Services transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 111,869 | 102,304
Global Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 113,726 | 106,501
Global Services | Operating Segments | Converged Packet Optical |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Global Services | Operating Segments | Routing and Switching |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Global Services | Operating Segments | Platform Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Global Services | Operating Segments | Blue Planet Automation Software and Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Global Services | Operating Segments | Maintenance Support and Training |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 67,630 | 61,793
Global Services | Operating Segments | Installation and Deployment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 39,611 | 34,954
Global Services | Operating Segments | Consulting and Network Design |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 6,485 | $ 9,754

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