Leases Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2020	Nov. 30, 2019	Feb. 29, 2020
Leases [Abstract]
Operating lease cost	$ 3,545	$ 4,803	$ 11,713	$ 13,717
Operating cash flows from operating leases included in lease liabilities	2,069	2,234	6,313	6,640
ROU assets obtained in exchange for new operating lease liabilities	$ 0	$ 4,385	$ 1,529	$ 7,534
Weighted-average remaining lease term - operating leases	7 years 1 month 17 days		7 years 1 month 17 days		7 years 11 months 8 days
Weighted-average discount rate - operating leases	4.86%		4.86%		4.89%