Stock-Based Compensation - Schedule of Factors Related to the Company's Stock and Restricted Stock Units (Details) - Restricted stock unit awards - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average per award fair value at date of grant (in dollars per share)	$ 74.81	$ 96.58	$ 103.40
Fair value of restricted stock units vested	$ 7.9	$ 7.7	$ 6.2