DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Notional Amounts and Fair Values of Derivative Instruments on Consolidated Balance Sheet (Details) - Forward contracts - Cash flow hedges - Designated as hedging instrument - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018
Derivatives, Fair Value [Line Items]
Notional Amounts	$ 10,096	$ 11,225
Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Prepaid Expenses and Other Current Assets	0	122
Accrued Other
Derivatives, Fair Value [Line Items]
Accrued Other	$ 381	$ 40