COMMON STOCK - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Share-based compensation expense:
Total stock-based compensation	$ 4,721	$ 10,750	$ 13,829
Restricted stock units
Share-based compensation expense:
Total stock-based compensation	4,551	9,299	9,331
Performance share units
Share-based compensation expense:
Total stock-based compensation	170	878	3,811
Employee stock purchase plan
Share-based compensation expense:
Total stock-based compensation	0	573	687
Cost of revenue
Share-based compensation expense:
Total stock-based compensation	774	929	1,112
Research and development
Share-based compensation expense:
Total stock-based compensation	1,091	2,997	5,843
Sales and marketing
Share-based compensation expense:
Total stock-based compensation	669	2,397	2,516
General and administrative
Share-based compensation expense:
Total stock-based compensation	$ 2,187	$ 4,427	$ 4,358