RESTRUCTURING ACTIVITIES - Summary of Charges Resulting from Implementation of Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 551	$ 740	$ 2,459
Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	480	358	2,285
Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	71	382	174
Cost of Revenue [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	468	479	447
Cost of Revenue [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	397	103	273
Cost of Revenue [Member] | Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	71	376	174
Research and Development [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	6	58
Research and Development [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	6	58
Selling and Marketing [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges		189	30
Selling and Marketing [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges		189	30
General and Administrative Expenses [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	77	14	1,982
General and Administrative Expenses [Member] | Personnel [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 77	8	$ 1,982
General and Administrative Expenses [Member] | Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 6