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Business Combinations - Additional Information (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Jul. 31, 2021 | Oct. 31, 2020
Business Acquisition [Line Items] |  |
Consideration transfered | $ 166,900 |
Goodwill | 3,485,181 | $ 3,365,114
Series of Individually Immaterial Business Acquisitions |  |
Business Acquisition [Line Items] |  |
Identifiable intangibles assets acquired | 57,700 |
Goodwill | 114,600 |
Series of Individually Immaterial Business Acquisitions | Semiconductor & System Design: |  |
Business Acquisition [Line Items] |  |
Goodwill | 68,900 |
Series of Individually Immaterial Business Acquisitions | Software Integrity: |  |
Business Acquisition [Line Items] |  |
Goodwill | $ 45,700 |

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