Discontinued Operations - Schedule of Significant Non-cash Items and Capital Expenditures of Discontinued Operations (Details) - Discontinued operations - Software Integrity Divestiture - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Disposal Groups, Including Discontinued Operations [Line Items]
Amortization and depreciation	$ 16,317	$ 25,007
Reduction of operating lease right-of-use assets	2,588	2,315
Amortization of capitalized costs to obtain revenue contracts	14,260	13,328
Stock-based compensation	30,291	24,527
Deferred income taxes	13,562	7,388
Purchases of property and equipment	$ 929	$ 1,644