FOREIGN CURRENCY DERIVATIVES (Details 6) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Gain (Loss) Included in Accumulated Other Comprehensive Income [Roll Forward]
Gain (loss) included in AOCI as of beginning of period	$ 415	$ 102	$ (1,106)	$ 5,705
Amount of gain (loss) recognized in other comprehensive income (“OCI”) (effective portion)	(650)	(1,976)	304	(4,814)
Amount of gain (loss) reclassified from OCI into net revenues (effective portion)	216,183	215,017	439,289	421,375
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)	(105,737)	(104,047)	(215,770)	(203,047)
Total amount of gain (loss) reclassified from AOCI to income (loss) (effective portion)	236	1,026	(331)	3,791
Gain included in AOCI as of end of period	(471)	(2,900)	(471)	(2,900)
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)	825	2,197	985	5,735
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)	$ (589)	$ (1,171)	$ (1,316)	$ (1,944)