INCOME TAXES - Summary of Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Current income tax expense:
Federal	$ 2,817	$ 3,902	$ 14,191
State	1,850	(136)	1,925
Foreign	9,712	10,618	12,249
Current income tax expense, Total	14,379	14,384	28,365
Deferred income tax benefit:
Federal	(5,287)	(25,347)	(113,122)
State	(2,897)	(3,845)	(10,037)
Foreign	(1,517)	(4,780)	(3,677)
Deferred income tax expense (benefit), Total	(9,701)	(33,972)	(126,836)
Income tax expense (benefit), Total	$ 4,678	$ (19,588)	$ (98,471)