Discontinued Operations - Schedule of Significant Non-cash Items and Capital Expenditures of Discontinued Operations (Details) - Discontinued operations - Software Integrity business - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Disposal Groups, Including Discontinued Operations [Line Items]
Amortization and depreciation	$ 16,317	$ 37,495
Reduction of operating lease right-of-use assets	2,162	3,481
Amortization of capitalized costs to obtain revenue contracts	20,808	21,398
Stock-based compensation	47,476	37,495
Deferred income taxes	18,939	7,388
Purchases of property and equipment	$ 972	$ 2,351