DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018
Derivative [Line Items]
Forward contracts to sell foreign currencies	$ 50,794		$ 67,580
Forward contracts to purchase foreign currencies	42,822		$ 4,359
Derivative instrument not designated as hedging instruments, gain (loss), net	(2,404)	$ (8,603)
Cash Flow Hedging | Foreign currency forward contracts
Derivative [Line Items]
Derivative, notional amount	$ 129,000