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