RESTRUCTURING CHARGES - Summary of Charges Resulting from Implementation of Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended		24 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 1,908	$ 0	$ 14,300
Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	1,805
Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	103
Cost of Revenues [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(21)
Cost of Revenues [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(124)
Cost of Revenues [Member] | Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	103
Research and Development [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(6)
Research and Development [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(6)
Selling and Marketing [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	30
Selling and Marketing [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	30
General and Administrative Expenses [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	1,905
General and Administrative Expenses [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 1,905