INTANGIBLE ASSETS - Schedule of Amounts Allocated to Intangible Assets from Acquisitions (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Mar. 31, 2025
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 140,000	$ 140,000
Total accumulated amortization	(125,333)	(119,833)
Total intangible assets, net	14,667	20,167
Developed technology, gross
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	94,000	94,000
Total accumulated amortization	(80,667)	(75,666)
Total intangible assets, net	13,333	18,334
Customer relationship/trade name, gross
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	30,000	30,000
Total accumulated amortization	(28,667)	(28,167)
Total intangible assets, net	$ 1,333	$ 1,833