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Discontinued Operations - Additional Information (Details) - Discontinued Operations - Software Integrity Business $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended	18 Months Ended
	Sep. 30, 2024 USD ($) quarter	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Oct. 31, 2024 USD ($)	Apr. 30, 2025 USD ($)
Disposal Groups, Including Discontinued Operations [Line Items]
Sale consideration	$ 1,650,000
Cash consideration	1,480,000	$ 20,000
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 (loss)		(8,299)	$ 0	$ (8,299)	$ 0	$ 868,800	$ 860,500
Reduction to gain		$ 7,100
Deferred consideration received				$ 50,000

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