Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Leases [Abstract]
Operating lease expense	$ 1,634	$ 1,711
Short-term lease expense	265	382
Total lease expense	$ 1,899	$ 2,093
Weighted average remaining lease term (years)	3 years 9 months 18 days
Weighted average discount rate	10.00%