DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative 1) (Details) $ in Millions	3 Months Ended
	May 31, 2018 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Contracted not recognized revenue	$ 43.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-06-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	46.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, period	12 months