RESTRUCTURING AND ASSET IMPAIRMENT CHARGES - Employee Separation and Other Cash Charges by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Reserve [Roll Forward]
Accruals	$ 179	$ 0	$ 1,377	$ 0
North America
Restructuring Reserve [Roll Forward]
Balance at beginning of period	247	0	0	60
Accruals	0	0	247	0
Payments	(140)	0	(140)	(60)
Balance at end of period	107	0	107	0
Other Regions
Restructuring Reserve [Roll Forward]
Balance at beginning of period	1,058	129	107	129
Accruals	179	0	1,130	0
Payments	(348)	0	(348)	0
Balance at end of period	$ 889	$ 129	$ 889	$ 129