Stockholders' Equity and Equity Incentive Plans - Summary of Restricted Stock Units Activity Under Equity Incentive Plan (Details) - RSUs	12 Months Ended
	Jan. 31, 2024 $ / shares shares
Unvested RSUs
Beginning balance (in units) | shares	21,868,533
Granted (in units) | shares	19,864,395
Vested (in units) | shares	(11,349,453)
Cancelled/forfeited (in units) | shares	(4,342,918)
Ending balance (in units) | shares	26,040,557
Weighted-Average Grant Date Fair Value Per Share
Beginning balance (in dollars per unit) | $ / shares	$ 109.31
Granted (in dollars per unit) | $ / shares	69.27
Vested (in dollars per unit) | $ / shares	102.87
Cancelled/forfeited (in dollars per unit) | $ / shares	99.98
Ending balance (in dollars per unit) | $ / shares	$ 83.14