INCOME TAXES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Effective tax rate	(20.10%)	(15.90%)	(17.40%)	(20.10%)
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount			$ 11,600,000
Effective Income Tax Rate Reconciliation, Disposition of Asset, Percent			6.40%
Income Tax Effects Allocated Directly to Equity, Employee Stock Options			$ 8,600,000
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Percent			4.80%
Net deferred tax assets	$ 29,500,000		$ 29,500,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount	$ (100,000)	$ (300,000)	$ (2,800,000)	$ (3,300,000)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent	10.00%	70.00%	1.60%	2.30%
Unrecognized tax benefits	$ 36,300,000	$ 25,500,000	$ 36,300,000	$ 25,500,000
Accrued penalties					$ 0
Unrecognized Tax Benefits, Increase Resulting From Cost Sharing Of Prior Stock-Based Compensation			$ 9,200,000