Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Segment and Entity Wide Disclosures - Segment Reporting (Details) $ in Thousands	12 Months Ended
	Oct. 31, 2020 USD ($) segment	Nov. 02, 2019 segment	Nov. 03, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| segment	4
Equipment, building, furniture and fixtures, net \| $	$ 272,377
Operating right-of-use assets \| $	$ 57,026		$ 53,334
Networking Platform and Blue Planet Automation Software and Services
Segment Reporting Information [Line Items]
Number of operating segments \| segment		2