FOREIGN CURRENCY DERIVATIVES (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) included in OCI	$ 1,937	$ (3,814)	$ 2,771
Amount of gain (loss) recognized in OCI (effective portion)	2,951	(3,668)
Amount of gain (loss) reclassified from OCI to income (loss) (effective portion)	$ (2,800)	$ 2,917