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Business Combinations - Additional Information (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jan. 31, 2021 USD ($) acquisitions | Oct. 31, 2020 USD ($)
Business Acquisition [Line Items] |  |
Number of completed acquisitions | acquisitions | 2 |
Consideration transfered | $ 77,500 |
Goodwill | 3,433,003 | $ 3,365,114
Series of Individually Immaterial Business Acquisitions |  |
Business Acquisition [Line Items] |  |
Identifiable intangibles assets acquired | 20,300 |
Goodwill | $ 59,300 |

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