DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Nov. 30, 2020 USD ($)	May 31, 2020 Segment	Nov. 30, 2019 USD ($)	Nov. 30, 2020 USD ($)	Nov. 30, 2019 USD ($) Segment	Feb. 29, 2020 USD ($) Segment	Mar. 01, 2020 USD ($)
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | Segment		3			2	2
Revenue recognized	$ 30,700
Unearned revenue	36,003			$ 36,003		$ 34,704	$ 62,200
Prepaid sales commissions	4,500			4,500
Contracted not recognized revenue	135,100			135,100		134,500
Allowance for doubtful accounts	4,100			4,100		$ 3,100
Foreign transaction exchange gains (losses)	300		$ 1,200	1,100	$ (100)
ASC 326 [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Addition to allowance for doubtful accounts				100
Non-current [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Prepaid sales commissions	$ 2,700			$ 2,700
Minimum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Deferred revenue contract in-service life				3 years
Accounts receivable payment period				30 days
Maximum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Deferred revenue contract in-service life				5 years
Accounts receivable payment period				60 days
Software-as-a-Service [Member] | Minimum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life				3 years
Software-as-a-Service [Member] | Maximum [Member]
Description Of Business Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life				5 years