INCOME TAXES - Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Current:
Federal	$ 0	$ 0	$ (395)
State	185	291	256
Foreign	647	278	185
Total current tax provision	832	569	46
Deferred
Federal	0	0	59,837
State	0	0	6,664
Foreign	0	0	(253)
Total deferred tax provision	0	0	66,248
Total income tax provision (benefit)	$ 832	$ 569	$ 66,294