Equity Plans and Stock-based Compensation - Narrative (Details) $ in Millions	3 Months Ended	9 Months Ended
	Oct. 31, 2023 USD ($) shares	Oct. 31, 2023 USD ($) shares
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Unrecognized stock-based compensation cost | $	$ 212.3	$ 212.3
Period for recognition (in years)		2 years 9 months 18 days
2021 Equity Incentive Plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Common stock reserved (in shares)	43,151,925	43,151,925
Number of stock options granted (in shares)	0	0
Employee stock purchase plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Common stock reserved (in shares)	13,139,772	13,139,772