Discontinued Operations - Schedule of Significant Non-cash Items and Capital Expenditures of Discontinued Operations (Details) - Discontinued operations - Software Integrity business - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Disposal Groups, Including Discontinued Operations [Line Items]
Amortization and depreciation	$ 0	$ 16,317	$ 51,971
Reduction of operating lease right-of-use assets	0	2,162	5,120
Amortization of capitalized costs to obtain revenue contracts	0	25,051	30,071
Stock-based compensation	0	34,381	50,198
Deferred income taxes	(6,933)	(31,679)	(3,136)
Purchases of property and equipment	$ 0	$ 1,487	$ 3,232