Stock-Based Compensation - Employee Stock Purchase Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		15 Months Ended	21 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021	Jan. 31, 2024	Jul. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense	$ 45,687	$ 27,362	$ 62,192	$ 118,318
Share-based payment arrangement, plan modification, incremental cost	2,600
Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, plan modification, incremental cost					$ 8,100
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense	3,600	$ 2,200	10,100	$ 3,200
Share-based payment arrangement, plan modification, incremental cost	$ 100		$ 300
ESPP | Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, plan modification, incremental cost						$ 900