Equity Plans and Stock-based Compensation - Narrative (Details) $ in Millions	3 Months Ended
	Apr. 30, 2024 USD ($) shares
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Unrecognized stock-based compensation cost | $	$ 142.9
Period for recognition (in years)	2 years 4 months 24 days
2021 Equity Incentive Plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Common stock reserved (in shares)	56,785,985
Number of stock options granted (in shares)	0
Employee stock purchase plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Common stock reserved (in shares)	15,498,912