Segments and Entity-Wide Disclosures - Revenue, Profit (Loss) and Net Income (Loss) Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
May 02, 2020	May 04, 2019	May 02, 2020	May 04, 2019
Revenue:
Total revenue	$ 894,053	$ 865,011	$ 1,726,965	$ 1,643,538
Less: Non-performance operating expenses
Selling and marketing	101,214	103,502	208,280	201,615
General and administrative	42,030	42,154	84,498	81,397
Amortization of intangible assets	5,839	5,529	11,692	11,057
Acquisition and integration costs	1,414	1,135	3,233	2,743
Add: Other non-performance financial items
Interest expense and other income (loss), net	(10,525)	(9,715)	(15,694)	(14,903)
Loss on extinguishment and modification of debt	0	0	(646)	0
Less: Provision for income taxes	25,308	17,867	35,122	27,006
Net income	91,655	52,738	153,983	86,354
Networking Platforms
Revenue:
Total revenue	718,461	696,976	1,377,518	1,317,542
Platform Software and Services
Revenue:
Total revenue	44,985	35,229	96,873	76,827
Blue Planet Automation Software and Services
Revenue:
Total revenue	15,017	12,473	30,483	27,447
Global Services
Revenue:
Total revenue	115,590	120,333	222,091	221,722
Operating Segments
Revenue:
Total revenue	894,053	865,011	1,726,965	1,643,538
Add: Other non-performance financial items
Net income	281,796	236,708	521,431	431,416
Operating Segments \| Networking Platforms
Revenue:
Total revenue	718,461	696,976	1,377,519	1,317,542
Add: Other non-performance financial items
Net income	210,987	175,191	379,256	311,782
Operating Segments \| Platform Software and Services
Revenue:
Total revenue	44,985	35,229	96,873	76,827
Add: Other non-performance financial items
Net income	21,668	12,477	50,619	32,940
Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	15,017	12,473	30,482	27,447
Add: Other non-performance financial items
Net income	(4,399)	(5,941)	(7,512)	(7,988)
Operating Segments \| Global Services
Revenue:
Total revenue	115,590	120,333	222,091	221,722
Add: Other non-performance financial items
Net income	53,540	54,981	99,068	94,682
Converged Packet Optical
Revenue:
Total revenue	654,294	623,838	1,245,844	1,172,835
Converged Packet Optical \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	654,294	623,838	1,245,844	1,172,835
Converged Packet Optical \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	0	0	0	0
Converged Packet Optical \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	0	0	0	0
Converged Packet Optical \| Operating Segments \| Global Services
Revenue:
Total revenue	0	0	0	0
Packet Networking
Revenue:
Total revenue	64,167	73,138	131,675	144,707
Packet Networking \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	64,167	73,138	131,675	144,707
Packet Networking \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	0	0	0	0
Packet Networking \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	0	0	0	0
Packet Networking \| Operating Segments \| Global Services
Revenue:
Total revenue	0	0	0	0
Platform Software and Services
Revenue:
Total revenue	44,985	35,229	96,873	76,827
Platform Software and Services \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	0	0	0	0
Platform Software and Services \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	44,985	35,229	96,873	76,827
Platform Software and Services \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	0	0	0	0
Platform Software and Services \| Operating Segments \| Global Services
Revenue:
Total revenue	0	0	0	0
Blue Planet Automation Software and Services
Revenue:
Total revenue	15,017	12,473	30,482	27,447
Blue Planet Automation Software and Services \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	15,017	12,473	30,482	27,447
Blue Planet Automation Software and Services \| Operating Segments \| Global Services
Revenue:
Total revenue	0	0	0	0
Maintenance Support and Training
Revenue:
Total revenue	71,479	68,788	133,271	130,065
Maintenance Support and Training \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	0	0	0	0
Maintenance Support and Training \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	0	0	0	0
Maintenance Support and Training \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	0	0	0	0
Maintenance Support and Training \| Operating Segments \| Global Services
Revenue:
Total revenue	71,479	68,788	133,271	130,065
Installation and Deployment
Revenue:
Total revenue	34,242	41,322	69,196	71,944
Installation and Deployment \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	0	0	0	0
Installation and Deployment \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	0	0	0	0
Installation and Deployment \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	0	0	0	0
Installation and Deployment \| Operating Segments \| Global Services
Revenue:
Total revenue	34,242	41,322	69,196	71,944
Consulting and Network Design
Revenue:
Total revenue	9,869	10,223	19,624	19,713
Consulting and Network Design \| Operating Segments \| Networking Platforms
Revenue:
Total revenue	0	0	0	0
Consulting and Network Design \| Operating Segments \| Platform Software and Services
Revenue:
Total revenue	0	0	0	0
Consulting and Network Design \| Operating Segments \| Blue Planet Automation Software and Services
Revenue:
Total revenue	0	0	0	0
Consulting and Network Design \| Operating Segments \| Global Services
Revenue:
Total revenue	$ 9,869	$ 10,223	$ 19,624	$ 19,713

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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