Equity Plans and Stock-based Compensation - Restricted Stock Units Activity (Details) - Restricted stock units	3 Months Ended
	Apr. 30, 2024 $ / shares shares
Number of Shares
Outstanding, beginning balance (in shares) | shares	28,416,127
Granted (in shares) | shares	1,454,225
Vested (in shares) | shares	(1,429,392)
Forfeited (in shares) | shares	(2,715,466)
Outstanding, ending balance (in shares) | shares	25,725,494
Weighted Average Grant Date Fair Value per Share
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 7.35
Granted (in dollars per share) | $ / shares	2.08
Vested (in dollars per share) | $ / shares	11.56
Forfeited (in dollars per share) | $ / shares	10.15
Outstanding, ending balance (in dollars per share) | $ / shares	$ 6.52