Equity Plans and Stock-based Compensation - Restricted Stock Units Activity (Details) - Restricted stock units	3 Months Ended
	Apr. 30, 2023 $ / shares shares
Number of Shares
Outstanding, beginning balance (in shares) | shares	12,935,413
Granted (in shares) | shares	661,578
Vested (in shares) | shares	(990,069)
Forfeited (in shares) | shares	(658,019)
Outstanding, ending balance (in shares) | shares	11,948,903
Weighted Average Grant Date Fair Value per Share
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 15.02
Granted (in dollars per share) | $ / shares	11.08
Vested (in dollars per share) | $ / shares	16.42
Forfeited (in dollars per share) | $ / shares	15.19
Outstanding, ending balance (in dollars per share) | $ / shares	$ 14.68