Stockholders’ Equity and Equity Incentive Plans - Summary of Restricted Stock Units Activity Under Equity Incentive Plan (Details) - RSUs	6 Months Ended
	Jul. 31, 2026 $ / shares shares
RSUs
Beginning balance (in shares) | shares	20,106,305
Granted (in shares) | shares	5,970,091
Vested (in shares) | shares	(4,995,895)
Canceled/forfeited (in shares) | shares	(1,313,209)
Ending balance (in shares) | shares	19,767,292
Weighted- Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 75.51
Granted (in dollars per share) | $ / shares	84.20
Vested (in dollars per share) | $ / shares	75.40
Canceled/forfeited (in dollars per share) | $ / shares	76.74
Ending balance (in dollars per share) | $ / shares	$ 78.08