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Summary of Significant Accounting Policies - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Oct. 31, 2016	Oct. 31, 2015
Property, Plant and Equipment, Net [Abstract]
Computer and other equipment	$ 486,109	$ 436,425
Buildings	68,194	67,943
Furniture and fixtures	51,589	50,075
Land	20,414	20,414
Leasehold improvements	136,773	142,275
Property, Plant and Equipment, Gross, Total	763,079	717,132
Less accumulated depreciation and amortization(1)	(506,044)	(454,055)
Total	$ 257,035	$ 263,077

X

- Definition

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

+ References

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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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