Equity Incentive Plans and Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 30, 2023	Jan. 31, 2023
Stock Options
Outstanding, beginning balance (in shares)	13,898
Granted (in shares)	2,276
Exercised (in shares)	(898)
Forfeited (in shares)	(116)
Outstanding, ending balance (in shares)	15,160	13,898
Vested and exercisable, Number of Stock Options (in shares)	6,419
Weighted- Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 3.32
Granted (in dollars per share)	0.10
Exercised (in dollars per share)	1.31
Forfeited (in dollars per share)	1.34
Outstanding, ending balance (in dollars per share)	2.97	$ 3.32
Vested and exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 2.15
Outstanding, Weighted-Average Remaining Contractual Life (years)	7 years 7 months 6 days	7 years 8 months 12 days
Vested and exercisable, Weighted-Average Remaining Contractual Life (years)	5 years 8 months 12 days
Outstanding, Aggregate Intrinsic Value	$ 172,461	$ 169,324
Vested and exercisable, Aggregate Intrinsic Value	$ 76,588