RESTRUCTURING CHARGES - Schedule of Restructuring Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Restructuring Charges [Abstract]
Severance and benefits	$ 1,443	$ 2,293	$ 406
Facilities	620	1,713	1,260
Restructuring expense	$ 2,063	$ 4,006	$ 1,666