Equity Incentive Plans and Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units shares in Thousands	6 Months Ended
	Jul. 31, 2023 $ / shares shares
RSUs
Unvested, beginning balance (in shares) | shares	36,785
Granted (in shares) | shares	15,620
Vested (in shares) | shares	(9,133)
Forfeited (in shares) | shares	(5,013)
Unvested, ending balance (in shares) | shares	38,259
Weighted-Average Grant Date Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 22.48
Granted (in dollars per share) | $ / shares	16.60
Vested (in dollars per share) | $ / shares	20.89
Forfeited (in dollars per share) | $ / shares	23.71
Unvested, ending balance (in dollars per share) | $ / shares	$ 20.30