FOREIGN CURRENCY DERIVATIVES (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Gain (Loss) Included in Accumulated Other Comprehensive Income [Roll Forward]
Gain (loss) included in AOCI as of beginning of period	$ 102	$ (607)	$ 5,705	$ (1,442)
Amount of gain (loss) recognized in OCI (effective portion)	(1,976)	3,023	(4,814)	3,096
Amount of gain (loss) reclassified from OCI into net revenues (effective portion)	215,017	215,805	421,375	432,467
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)	(104,047)	(97,978)	(203,047)	(199,930)
Total amount of gain (loss) reclassified from AOCI to income (loss) (effective portion)	1,026	(185)	3,791	(947)
Gain (loss) included in AOCI as of end of period	(2,900)	2,601	(2,900)	2,601
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)	2,197	(289)	5,735	(1,159)
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)	$ (1,171)	$ 104	$ (1,944)	$ 212