DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS - Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Property, Plant and Equipment, Net [Abstract]
Land	$ 16,666	$ 16,666
Buildings and Improvements	101,265	99,914
Machinery and Equipment	105,532	103,344
Software	49,603	43,387
Construction in Progress	20,119	8,679
Property, Plant and Equipment, Gross	293,185	271,990
Accumulated Depreciation and Amortization	(143,450)	(132,577)
Property, plant, and equipment, net	149,735	139,413
Depreciation and amortization expense	19,900	18,500	$ 15,500
Unamortized capitalized software costs	21,800	19,200
Amortization expense related to capitalized software costs	4,100	$ 3,800	$ 2,300
The Netherlands
Property, Plant and Equipment, Net [Abstract]
Construction in Progress	9,200
Mexico
Property, Plant and Equipment, Net [Abstract]
Construction in Progress	$ 3,000
Building and improvements | Minimum
Property, Plant and Equipment, Net [Abstract]
Useful life	7 years
Building and improvements | Maximum
Property, Plant and Equipment, Net [Abstract]
Useful life	30 years
Machinery and equipment | Minimum
Property, Plant and Equipment, Net [Abstract]
Useful life	2 years
Machinery and equipment | Maximum
Property, Plant and Equipment, Net [Abstract]
Useful life	10 years
Software | Minimum
Property, Plant and Equipment, Net [Abstract]
Useful life	5 years
Software | Maximum
Property, Plant and Equipment, Net [Abstract]
Useful life	10 years