FINANCING ARRANGEMENTS (Schedule of Balances Attributable to Financing Arrangements) (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Feb. 28, 2019
Debt Instrument [Line Items]
Long-term debt	$ 300,097	$ 275,905
Less: Current portion	124,181
Long-term debt, net of current portion	175,916	275,905
2020 Convertible Notes [Member]
Debt Instrument [Line Items]
Long-term debt	118,199	115,249
2025 Convertible Notes [Member]
Debt Instrument [Line Items]
Long-term debt	165,001	$ 160,656
Due to Factors Under Revenue Assignment Agreements [Member]
Debt Instrument [Line Items]
Long-term debt	$ 16,897

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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