Leases - Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020	Feb. 28, 2021
Leases [Abstract]
Operating cash flows from operating leases included in lease liabilities	$ 2,257	$ 2,216	$ 4,534	$ 4,335
Lease liabilities obtained from new ROU assets - operating	473	$ 1,324	13,120	$ 1,528
Operating and financing cash flows from financing leases included in lease liabilities	20		38
Lease liabilities obtained from new ROU assets - financing	$ 14		$ 14
Weighted-average remaining lease term - operating leases (years)	8 years 2 months 8 days		8 years 2 months 8 days		6 years 11 months 1 day
Weighted-average discount rate - operating leases	4.54%		4.54%		4.71%
Weighted-average remaining lease term - financing leases (years)	3 years 9 months		3 years 9 months		4 years 3 months
Weighted-average discount rate - financing leases	3.92%		3.92%		4.00%