Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Lease, Cost [Abstract]
Operating lease cost	$ 1,389	$ 1,418	$ 2,736	$ 2,851
Supplemental cash flow information related to leases was as follows:
Cash paid for amounts included in the measurement of lease liabilities, Operating cash flows from operating leases	1,410	1,421	2,779	2,862
Right-of-use assets obtained in exchange for lease obligations, Operating leases	$ 847	$ 779	$ 1,495	$ 779
Weighted Average Remaining Lease Terms, Operating leases	2 years 6 months	2 years 10 months 24 days	2 years 6 months	2 years 10 months 24 days
Weighted Average Discount Rate, Operating leases	4.27%	4.03%	4.27%	4.03%