Discontinued Operations - Schedule of Components of Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of income taxes	$ (7,004)	$ (2,692)	$ 4,658	$ (840)
Discontinued operations \| Software Integrity Divestiture
Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	126,421	132,119	264,662	259,962
Cost of revenue	45,749	49,773	95,731	98,138
Operating expenses	89,626	87,389	170,891	167,558
Interest and other income (expense), net	340	41	996	398
Income (loss) from discontinued operations before income taxes	(8,614)	(5,002)	(964)	(5,336)
Income tax provisions (benefits)	(1,610)	(2,310)	(5,622)	(4,496)
Income (loss) from discontinued operations, net of income taxes	$ (7,004)	$ (2,692)	$ 4,658	$ (840)

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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