Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020
Lessee, Lease, Description [Line Items]
Total lease expense	$ 3,839	$ 3,698	$ 7,518	$ 8,168
Cost of sales
Lessee, Lease, Description [Line Items]
Total lease expense	2,852	2,563	5,397	5,784
Selling, general and administrative
Lessee, Lease, Description [Line Items]
Total lease expense	$ 987	$ 1,135	$ 2,121	$ 2,384