DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Disaggregation of Revenue by Type of Goods and Services and by Timing of Revenue Recognition) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2017	May 31, 2017	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017
Disaggregation Of Revenue [Line Items]
Revenues	$ 84,380	$ 88,495	$ 96,037	$ 94,888	$ 94,395	$ 93,669	$ 89,767	$ 88,081	$ 363,800	$ 365,912	$ 351,102
Products [Member]
Disaggregation Of Revenue [Line Items]
Revenues									300,378
Professional Services [Member]
Disaggregation Of Revenue [Line Items]
Revenues									5,989
Recurring Application Subscriptions [Member]
Disaggregation Of Revenue [Line Items]
Revenues									57,433
Revenue Recognized At Point In Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues									300,378
Revenue Recognized Over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues									$ 63,422