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Acquisitions (Detail) - USD ($) $ in Thousands		6 Months Ended
	Nov. 01, 2021	Apr. 30, 2022	Apr. 30, 2021
Business Acquisition [Line Items]
Acquisition of businesses, net of cash acquired		$ 171,613	$ 0
NDC Technologies
Business Acquisition [Line Items]
Acquired percent of the outstanding shares	100.00%
Acquisition of businesses, net of cash acquired	$ 171,613
Cash acquired from business acquisition	7,533
Other working capital adjustments	2,763
Assets acquired, liabilities assumed, and goodwill	129,856
Identifiable intangible assets	31,130
Goodwill, expected tax deductible amount	73,300
NDC Technologies | Trade name
Business Acquisition [Line Items]
Identifiable intangible assets	$ 10,800
Intangible assets amortization period	13 years
NDC Technologies | Technology-Based Intangible Assets
Business Acquisition [Line Items]
Identifiable intangible assets	$ 10,000
Intangible assets amortization period	7 years
NDC Technologies | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 9,500
Intangible assets amortization period	4 years
NDC Technologies | Non-compete agreements
Business Acquisition [Line Items]
Identifiable intangible assets	$ 830
Intangible assets amortization period	3 years

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Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Excluding Intangible Assets

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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