INCOME TAXES - Narrative (Details) - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Contingency [Line Items]
(Benefit from) provision for income taxes	$ (387,000)	$ 843,000	$ 832,000
Deferred income tax expense (benefit)	(1,253,000)	0	0
Undistributed earnings (losses) of foreign subsidiaries	12,900,000	15,300,000	9,000,000
Deferred tax assets, valuation allowance	349,093,000	160,450,000
Operating loss carryforwards	1,322,100,000
Operating Loss Carryforwards, Subject To Expiration	490,500,000
Operating loss carryforward, indefinitely	831,600,000
Unrecognized tax benefits	9,850,000	7,053,000	6,115,000	$ 5,033,000
Accrued penalties and interest	200,000	$ 0	$ 0
Domestic Tax Authority
Income Tax Contingency [Line Items]
Research tax credit carryforwards	17,300,000
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating loss carryforwards	1,067,900,000
Research tax credit carryforwards	19,600,000
Fuze
Income Tax Contingency [Line Items]
Deferred income tax expense (benefit)	$ 1,200,000