Summary of Significant Accounting Policies - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Property, Plant and Equipment, Net [Abstract]
Computer and other equipment	$ 678,901	$ 604,117
Buildings	68,708	68,522
Furniture and fixtures	72,437	61,070
Land	18,849	18,849
Leasehold improvements	273,985	183,430
Property and equipment gross	1,112,880	935,988
Less accumulated depreciation and amortization	(683,348)	(626,678)
Total	$ 429,532	$ 309,310

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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