Stock-Based Compensation - Additional Information (Details) $ in Millions	6 Months Ended
	Apr. 30, 2025 USD ($)
Options, Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share-based compensation expense	$ 1,500.0
Weighted-average period of total compensation costs to be recognized over a period in years	2 years 2 months 12 days
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share-based compensation expense	$ 154.8
Weighted-average period of total compensation costs to be recognized over a period in years	2 years