FOREIGN CURRENCY DERIVATIVES (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Gain (Loss) Included in Accumulated Other Comprehensive Income [Roll Forward]
Gain (loss) included in AOCI as of beginning of period	$ (607)	$ (546)	$ (1,442)	$ 1,371
Amount of gain (loss) recognized in OCI (effective portion)	3,023	(1,983)	3,096	(3,646)
Amount of gain (loss) reclassified from OCI into net revenues (effective portion)	215,805	193,980	432,467	396,798
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)	(97,978)	(94,366)	(199,930)	(191,552)
Total amount of gain (loss) reclassified from AOCI to income (loss) (effective portion)	185	156	947	(98)
Gain (loss) included in AOCI as of end of period	2,601	(2,373)	2,601	(2,373)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Gain (Loss) Included in Accumulated Other Comprehensive Income [Roll Forward]
Amount of gain (loss) reclassified from OCI into net revenues (effective portion)	289	130	1,159	146
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)	$ (104)	$ 26	$ (212)	$ (244)