Equity Incentive Plans and Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units shares in Thousands	3 Months Ended
	Apr. 30, 2025 $ / shares shares
RSUs
Unvested, beginning balance (in shares) | shares	22,449
Granted (in shares) | shares	10,836
Vested (in shares) | shares	(3,127)
Forfeited (in shares) | shares	(1,600)
Unvested, ending balance (in shares) | shares	28,558
Weighted-Average Grant Date Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 17.81
Granted (in dollars per share) | $ / shares	10.19
Vested (in dollars per share) | $ / shares	19.80
Forfeited (in dollars per share) | $ / shares	18.49
Unvested, ending balance (in dollars per share) | $ / shares	$ 14.66