Discontinued Operations - Schedule of Components of Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended	18 Months Ended
Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Oct. 31, 2024	Apr. 30, 2025
Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of income taxes	$ (3,900)	$ (7,004)	$ (3,900)	$ 4,658
Discontinued Operations \| Software Integrity Business
Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	126,421	0	264,662
Cost of revenue	0	45,749	0	95,731
Operating expenses	0	89,626	0	170,891
Other income (expense), net	0	340	0	996
Income (loss) from discontinued operations	0	(8,614)	0	(964)
Loss on Software Integrity Divestiture	(8,299)	0	(8,299)	0	$ 868,800	$ 860,500
Income (loss) from discontinued operations before income taxes	(8,299)	(8,614)	(8,299)	(964)
Income tax benefits	4,399	1,610	4,399	5,622
Income (loss) from discontinued operations, net of income taxes	$ (3,900)	$ (7,004)	$ (3,900)	$ 4,658

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