INCOME TAXES - Income Before Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ 4,985	$ (1,502)	$ (107,088)
Foreign	17,319	3,426	14,176
Income before income tax expense	$ 22,304	$ 1,924	$ (92,912)