INCOME TAXES (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018	Mar. 31, 2017
Income Tax Contingency [Line Items]
Effective tax rate	255.10%	11.00%	114.60%	18.40%
Toll charge	$ 69,300,000
Increase in effective tax rate due to toll charge	217.20%		94.10%
Decrease in deferred tax assets			$ 2,100,000
Change in enacted tax rate	6.60%		2.90%
Undistributed foreign earnings	$ 5,000,000		$ 5,000,000
Increase in tax rate due to undistributed foreign earnings	15.60%		6.80%
Decrease in global tax rate	2.30%		1.00%
Period under review			30 years
Reduction in effective tax rate due to correction to the geographic mix of income			3.50%
Reduction in effective tax rate due to adoption of accounting standard			2.60%
Unrecognized tax benefits	$ 12,300,000		$ 12,300,000			$ 12,900,000
Accrued interest related to unrecognized tax benefits	1,400,000		1,400,000			1,700,000
Accrued penalties	$ 0		$ 0			$ 0
Scenario, Forecast [Member]
Income Tax Contingency [Line Items]
Federal statutory income tax rate					31.56%