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, 2024 $ / shares shares
RSUs
Unvested, beginning balance (in shares) | shares	31,272
Granted (in shares) | shares	9,479
Vested (in shares) | shares	(3,843)
Forfeited (in shares) | shares	(1,497)
Unvested, ending balance (in shares) | shares	35,411
Weighted-Average Grant Date Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 19.89
Granted (in dollars per share) | $ / shares	21.45
Vested (in dollars per share) | $ / shares	21.22
Forfeited (in dollars per share) | $ / shares	20.76
Unvested, ending balance (in dollars per share) | $ / shares	$ 20.13