ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 1) $ in Thousands	6 Months Ended
	Sep. 30, 2017 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of April 1, 2017	$ (32,873)
Other comprehensive income (loss) before reclassifications	5,343
Amounts reclassified from Accumulated Other Comprehensive Income (Loss)	121
Other comprehensive income (loss)	5,464
Balance as of September 30, 2017	(27,409)
Foreign Currency
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of April 1, 2017	(29,835)
Other comprehensive income (loss) before reclassifications	6,856
Amounts reclassified from Accumulated Other Comprehensive Income (Loss)	0
Other comprehensive income (loss)	6,856
Balance as of September 30, 2017	(22,979)
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of April 1, 2017	(2,272)
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from Accumulated Other Comprehensive Income (Loss)	0
Other comprehensive income (loss)	0
Balance as of September 30, 2017	(2,272)
Net Unrealized Gain/Loss on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of April 1, 2017	(766)
Other comprehensive income (loss) before reclassifications	(1,513)
Amounts reclassified from Accumulated Other Comprehensive Income (Loss)	121
Other comprehensive income (loss)	(1,392)
Balance as of September 30, 2017	$ (2,158)