Equity Incentive Plans and Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units shares in Thousands	9 Months Ended
	Oct. 31, 2023 $ / shares shares
RSUs
Unvested, beginning balance (in shares) | shares	36,785
Granted (in shares) | shares	17,615
Vested (in shares) | shares	(13,773)
Forfeited (in shares) | shares	(6,569)
Unvested, ending balance (in shares) | shares	34,058
Weighted-Average Grant Date Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 22.48
Granted (in dollars per share) | $ / shares	16.54
Vested (in dollars per share) | $ / shares	20.47
Forfeited (in dollars per share) | $ / shares	23.46
Unvested, ending balance (in dollars per share) | $ / shares	$ 20.03