FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments (Details) - Other Foreign Currency Contracts - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Other current assets | Derivatives designated as hedging instruments
Fair Values of Derivative Instruments
Asset Derivatives	$ 19,422	$ 11,936
Other current assets | Derivatives not designated as hedging instruments
Fair Values of Derivative Instruments
Asset Derivatives	23,912	10,086
Other current liabilities | Derivatives designated as hedging instruments
Fair Values of Derivative Instruments
Liability Derivatives	7,065	1,814
Other current liabilities | Derivatives not designated as hedging instruments
Fair Values of Derivative Instruments
Liability Derivatives	$ 18,246	$ 9,928