OTHER FINANCIAL INFORMATION (Schedule of Interest Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Condensed Income Statements, Captions [Line Items]
Amortization of discount and issuance costs	$ 10,411	$ 10,180	$ 13,764
Other interest expense	589	1,140	933
Total interest expense	15,323	15,487	20,096
2020 Convertible Notes [Member]
Condensed Income Statements, Captions [Line Items]
Stated interest		93	1,464
Amortization of discount and issuance costs		289	4,336
Interest expense on convertible notes		382	5,800
2025 Convertible Notes [Member]
Condensed Income Statements, Captions [Line Items]
Stated interest	4,600	4,587	4,613
Amortization of discount and issuance costs	10,134	9,378	8,750
Interest expense on convertible notes	$ 14,734	$ 13,965	$ 13,363