Leases - ASC 842 Quantitative Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Leases [Abstract]
Operating lease cost	$ 1,423	$ 1,281	$ 2,842	$ 2,550
Short-term lease cost	130	80	234	188
Sublease income	(10)	(10)	(20)	(20)
Variable lease cost	690	160	618	421
Total lease cost	$ 2,233	$ 1,511	3,674	3,139
Cash paid for amounts included in the measurement of lease liabilities			3,260	2,890
Right-of-use assets obtained in exchange for new lease liabilities (a)			$ 34,012	$ 364
Weighted-average remaining lease term (years)	6 years	1 year 8 months 12 days	6 years	1 year 8 months 12 days
Weighted-average discount rate	9.78%	6.36%	9.78%	6.36%