Business Combinations - Additional Information (Details) $ in Thousands	6 Months Ended
Apr. 30, 2021 USD ($) acquisitions	Oct. 31, 2020 USD ($)
Business Acquisition [Line Items]
Number of completed acquisitions \| acquisitions	2
Consideration transfered	$ 77,500
Goodwill	3,432,577	$ 3,365,114
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Identifiable intangibles assets acquired	20,300
Goodwill	$ 59,200

Business Combination, Number of Completed Acquisitions

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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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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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