Stock-Based Compensation - 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, 2023	Oct. 31, 2022	Oct. 31, 2021
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)	$ 103.40	$ 88.90	$ 97.87
Fair value of restricted stock units vested	$ 6.2	$ 5.5	$ 4.5