Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Leases [Abstract]
Operating lease expense	$ 2,008	$ 1,537	$ 5,237	$ 4,526
Short-term lease expense	64	307	560	846
Total lease expense	2,072	1,844	5,797	5,372
Sublease income	$ 306	$ 70	$ 922	$ 624
Weighted average remaining lease term (years)	1 year 10 months 24 days		1 year 10 months 24 days
Weighted average discount rate	12.60%		12.60%