Stock-Based Compensation - Additional Information (Detail) $ in Millions	3 Months Ended
	Jan. 31, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share-based compensation expense	$ 1,600.0
Weighted-average period of total compensation costs to be recognized in years	2 years 8 months 12 days
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share-based compensation expense	$ 27.5
Weighted-average period of total compensation costs to be recognized in years	2 years