INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncement, Early Adoption [Line Items]
Transition tax on accumulated foreign earnings	$ 18,078
Increase to deferred income tax asset	47,677
Decrease to valuation allowance	$ (47,677)		$ (47,677)
Income tax (benefit) expenses related to TCJA			$ (6,202)
Statutory rate			31.55%
Effective rate	(105.60%)		(82.30%)
Valuation allowance, increase (decrease)	$ (9,773)		$ (14,437)
Increase in tax benefit, tax credits			(8,891)
Unrecognized tax benefits (decrease)	(12,555)		(11,174)
Benefit from income taxes	(12,914)	$ (2,282)	(37,331)	$ (2,169)
Accounting Standards Update 2016-09 | Additional Paid-in Capital
New Accounting Pronouncement, Early Adoption [Line Items]
Excess tax benefits	$ 4,131		$ 28,624