Equity Plans and Stock-Based Compensation - Restricted Stock Units Activity (Details)	12 Months Ended
	Jan. 31, 2024 $ / shares shares
Restricted stock units
Number of Shares
Outstanding, beginning balance (in shares) | shares	12,935,413
Granted (in shares) | shares	26,348,986
Vested (in shares) | shares	(6,249,909)
Forfeited (in shares) | shares	(4,618,363)
Outstanding, ending balance (in shares) | shares	28,416,127
Weighted Average Grant Date Fair Value per Share
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 15.02
Granted (in dollars per share) | $ / shares	5.85
Vested (in dollars per share) | $ / shares	13.53
Forfeited (in dollars per share) | $ / shares	11.95
Outstanding, ending balance (in dollars per share) | $ / shares	$ 7.35
Performance Restricted Stock Units
Number of Shares
Outstanding, beginning balance (in shares) | shares	2,147,366
Granted (in shares) | shares	1,621,236
Forfeited (in shares) | shares	(620,820)
Outstanding, ending balance (in shares) | shares	3,147,782
Weighted Average Grant Date Fair Value per Share
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 10.83
Granted (in dollars per share) | $ / shares	2.84
Forfeited (in dollars per share) | $ / shares	10.47
Outstanding, ending balance (in dollars per share) | $ / shares	$ 6.79