INCOME TAXES - Schedule of Federal Statutory Income Tax Rate to Effective Tax Rate (Details)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Statutory U.S. federal tax rate	21.00%	31.55%	35.00%
State taxes, net of federal tax effect	3.40%	6.90%	9.70%
Research and development tax credits	7.10%	39.50%	(8.20%)
Effect of foreign operations	(0.60%)	15.50%	(6.70%)
Meals and entertainment	(1.00%)	(6.70%)	2.50%
Domestic production activities deduction	(0.00%)	13.80%	(4.00%)
Change in valuation allowance	2.20%	(0.20%)	(0.10%)
Stock Compensation	(2.60%)	(2.50%)	3.10%
Divestiture	(1.00%)	0.00%	0.00%
GILTI/FDII	2.90%	0.00%	0.00%
BEAT	(7.00%)	0.00%	0.00%
2017 Tax Act (transition tax and re-measurement of deferreds)	0.40%	454.10%	0.00%
Foreign withholding	(3.00%)	(21.00%)	3.80%
Other permanent differences	(0.70%)	(3.30%)	1.10%
Total effective income tax rate	21.10%	527.70%	36.20%