DERIVATIVES AND FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Financial Liabilities Measured at Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018
Fair Value, Measurements, Recurring [Member]
Assets
Money market funds	$ 76,408	$ 75,450
Designated interest rate swaps		0
Assets fair value	78,046	76,554
Liabilities
Liabilities fair value	738	1,583
Fair Value, Measurements, Recurring [Member] \| Quoted Market Prices for Identical Assets (Level 1)
Assets
Money market funds	76,408	75,450
Designated interest rate swaps		0
Assets fair value	76,408	75,450
Liabilities
Liabilities fair value	0	0
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Assets
Money market funds	0	0
Designated interest rate swaps		0
Assets fair value	1,638	1,104
Liabilities
Liabilities fair value	738	1,583
Designated as Hedging Instrument
Assets
Derivative Assets	1,638	1,104
Liabilities
Derivative Liabilities	738	1,583
Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member]
Assets
Derivative Assets	1,620	780
Liabilities
Derivative Liabilities	579	1,445
Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Quoted Market Prices for Identical Assets (Level 1)
Assets
Derivative Assets	0	0
Liabilities
Derivative Liabilities	0	0
Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Assets
Derivative Assets		780
Liabilities
Derivative Liabilities		1,445
Not Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member]
Assets
Derivative Assets	18	324
Liabilities
Derivative Liabilities	159	138
Not Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Quoted Market Prices for Identical Assets (Level 1)
Assets
Derivative Assets	0	0
Liabilities
Derivative Liabilities	0	0
Not Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Assets
Derivative Assets		324
Liabilities
Derivative Liabilities		138
Foreign Exchange Contract \| Other Current Assets \| Designated as Hedging Instrument
Assets
Derivative Assets		780
Foreign Exchange Contract \| Other Current Assets \| Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Assets
Derivative Assets	1,620
Foreign Exchange Contract \| Other Current Assets \| Not Designated as Hedging Instrument
Assets
Derivative Assets		324
Foreign Exchange Contract \| Other Current Assets \| Not Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Assets
Derivative Assets	18
Foreign Exchange Contract \| Other Current Liabilities \| Designated as Hedging Instrument
Liabilities
Derivative Liabilities		1,445
Foreign Exchange Contract \| Other Current Liabilities \| Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Liabilities
Derivative Liabilities	579
Foreign Exchange Contract \| Other Current Liabilities \| Not Designated as Hedging Instrument
Liabilities
Derivative Liabilities		$ 138
Foreign Exchange Contract \| Other Current Liabilities \| Not Designated as Hedging Instrument \| Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2)
Liabilities
Derivative Liabilities	$ 159

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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