Stock-Based Compensation - Milestone Options Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 30, 2021	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense		$ 216,870	$ 164,466
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		$ 3,600	$ 3,600	$ 3,100
Cost not yet recognized, period for recognition		2 years 7 months 6 days
Cost not yet recognized, amount		$ 9,100