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FOREIGN CURRENCY DERIVATIVES (Details 3) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2010
Not Designated as Hedging Instrument [Member]
     
Derivative [Line Items]      
Gain (loss) on foreign exchange contracts $ 1,009 $ (1,800) $ (996)
Designated as Hedging Instrument [Member]
     
Derivative [Line Items]      
Gain (loss) on foreign exchange contracts $ (2,800) $ 2,917 $ 2,282