INTANGIBLE ASSETS AND GOODWILL - Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 33,742	$ 46,917
Accumulated Amortization	(17,897)	(29,787)
Net Carrying Amount	15,845	17,130
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,231	33,960
Accumulated Amortization	(15,793)	(21,458)
Net Carrying Amount	11,438	12,502
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,428	11,969
Accumulated Amortization	(2,021)	(7,341)
Net Carrying Amount	4,407	4,628
Trade and domain names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	83	988
Accumulated Amortization	(83)	(988)
Net Carrying Amount	$ 0	$ 0