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Discontinued Operations - Additional Information (Details) - Discontinued operations - Software Integrity business $ in Thousands |  | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) quarter | Oct. 31, 2024 USD ($) | Oct. 31, 2023 USD ($) | Oct. 31, 2022 USD ($)
Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Sale consideration | $ 1,650,000 |  |  |
Cash consideration | 1,480,000 |  |  |
Deferred consideration receivable, present value | 121,500 |  |  |
Deferred consideration receivable | $ 125,000 |  |  |
Number of fiscal quarters for consideration installment payments | quarter | 5 |  |  |
Contingent consideration receivable | $ 22,200 |  |  |
Contingent consideration receivable, achievement of specified rate of return | 475,000 |  |  |
Additional consideration receivable as a result of net working capital adjustments | 27,100 |  |  |
Derecognized net assets | 720,500 |  |  |
Transaction costs incurred | 61,700 |  |  |
Pre-tax gain on discontinued operation | $ 868,800 | $ 868,830 | $ 0 | $ 0

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