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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Derivative [Line Items]      
Forward contracts to sell foreign currencies $ 122,024 $ 116,590  
Forward contracts to purchase foreign currencies 52,596 87,793  
Derivative instrument not designated as hedging instruments, gain (loss), net (959) $ 16,831 $ (19,473)
Cash Flow Hedging | Currency Swap      
Derivative [Line Items]      
Derivative, notional amount $ 108,867