GOODWILL & INTANGIBLE ASSETS - Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization expenses	$ 74,361	$ 81,608	$ 91,189
Cost of product revenue
Finite-Lived Intangible Assets [Line Items]
Amortization expenses	14,600	20,457	26,664
Operating expense
Finite-Lived Intangible Assets [Line Items]
Amortization expenses	$ 59,761	$ 61,151	$ 64,525