Stock-Based Compensation - Milestone Options Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense		$ 54,913	$ 45,687	$ 118,318	$ 163,308
Milestone Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	1,404,605
Vesting percentage	100.00%
Share-based payment arrangement, expense		900	$ 900	2,700	$ 2,700
Cost not yet recognized, amount		$ 10,000		$ 10,000
Cost not yet recognized, period for recognition				2 years 9 months 18 days