INCOME TAXES (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Effective tax rate	19.30%	21.40%	7.20%	22.00%
Reduction in effective tax rate due to correction to the geographic mix of income			6.60%
Reduction in effective tax rate due to adoption of accounting standard	0.30%		4.80%
Unrecognized tax benefits	$ 13,400,000		$ 13,400,000		$ 12,900,000
Accrued interest related to unrecognized tax benefits	1,600,000		1,600,000		1,700,000
Accrued penalties	$ 0		$ 0		$ 0