DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Derivative [Line Items]
Forward contracts to sell foreign currencies	$ 72,538		$ 116,590
Forward contracts to purchase foreign currencies	42,544		$ 87,793
Derivative instrument not designated as hedging instruments, gain (loss), net	(3,298)	$ 2,404
Cash Flow Hedging | Foreign currency forward contracts
Derivative [Line Items]
Derivative, notional amount	$ 115,641