Stockholders' Equity and Equity Incentive Plans - Summary of Stock Option Activity Under Equity Incentive Plan (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 31, 2026 USD ($) $ / shares shares	Jan. 31, 2026 USD ($) $ / shares shares
Outstanding Stock Options
Beginning balance (in shares) | shares	1,542,753
Exercised (in shares) | shares	(347,510)
Canceled/forfeited/expired (in shares) | shares	0
Ending balance (in shares) | shares	1,195,243	1,542,753
Exercisable (in shares) | shares	1,195,243
Weighted- Average Exercise Price
Beginning balance (in dollars per share) | $ / shares	$ 11.81
Exercised (in dollars per share) | $ / shares	4.47
Canceled/forfeited/expired (in dollars per share) | $ / shares	0
Ending balance (in dollars per share) | $ / shares	13.94	$ 11.81
Exercisable (in dollars per share) | $ / shares	$ 13.94
Weighted- Average Remaining Contractual Life (Years)
Outstanding	2 years	2 years 2 months 12 days
Exercisable	2 years
Aggregate Intrinsic Value
Outstanding | $	$ 98,159	$ 124,080
Exercised | $	28,751
Exercisable | $	$ 98,159