FOREIGN CURRENCY DERIVATIVES (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) on foreign exchange contracts	$ 4,007	$ (2,800)	$ 2,917
Not Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) on foreign exchange contracts	$ 1,065	$ 1,009	$ (1,800)