Stockholders' Equity and Equity Incentive Plans - Summary of Restricted Stock Units Activity Under Equity Incentive Plan (Details) - RSUs	12 Months Ended
	Jan. 31, 2025 $ / shares shares
Unvested RSUs
Beginning balance (in shares) | shares	26,040,557
Granted (in shares) | shares	13,811,816
Vested (in shares) | shares	(12,095,006)
Cancelled/forfeited (in shares) | shares	(3,886,854)
Ending balance (in shares) | shares	23,870,513
Weighted-Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 83.14
Granted (in dollars per share) | $ / shares	67.30
Vested (in dollars per share) | $ / shares	85.54
Cancelled/forfeited (in dollars per share) | $ / shares	78.72
Ending balance (in dollars per share) | $ / shares	$ 73.48