Equity Incentive Plans and Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units shares in Thousands	6 Months Ended
	Jul. 31, 2025 $ / shares shares
RSUs
Unvested, beginning balance (in shares) | shares	22,449
Granted (in shares) | shares	14,215
Vested (in shares) | shares	(7,038)
Forfeited (in shares) | shares	(3,276)
Unvested, ending balance (in shares) | shares	26,350
Weighted-Average Grant Date Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 17.81
Granted (in dollars per share) | $ / shares	10.78
Vested (in dollars per share) | $ / shares	17.76
Forfeited (in dollars per share) | $ / shares	16.74
Unvested, ending balance (in dollars per share) | $ / shares	$ 14.16