RESTRUCTURING ACTIVITIES - Summary of Charges Resulting from Implementation of Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		30 Months Ended
	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2020
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 92	$ 848	$ 2,551	$ 3,120	$ 15,000
Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(53)	848	2,232	1,910
Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	145		319	1,210
Cost of Revenue [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	117	100	564	1,659
Cost of Revenue [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(28)	100	245	449
Cost of Revenue [Member] | Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	145		319	1,210
Research and Development [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges		97		97
Research and Development [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges		97		97
Selling and Marketing [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	4	454	34	901
Selling and Marketing [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	4	454	34	901
General and Administrative Expenses [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(29)	197	1,953	463
General and Administrative Expenses [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ (29)	$ 197	$ 1,953	$ 463