INCOME TAXES (Reconciliation of Income Tax Benefit (Provision)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 28, 2018
Income Tax Disclosure [Abstract]
Income tax benefit (provision) at U.S. statutory federal rate	$ 12,248	$ (5,010)	$ (9,400)
State income tax benefit (provision), net of federal income tax effect	1,218	(1,300)	(574)
Foreign taxes benefit (provision)	(50)	(31)	2,923
Impact of tax reform			(8,955)
U.S. taxes on foreign income	(571)
Valuation allowance reductions (increases)	(34,631)	5,915	3,046
Research and other tax credits	2,594	1,658	1,034
Tax benefits on vested and exercised equity awards	(606)		937
Other, net	(656)	98	308
Income tax benefit (provision)	$ (20,454)	$ 1,330	$ (10,681)