FOREIGN CURRENCY DERIVATIVES (Details 3) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Effect of Derivative Contracts on Accumulated Other Comprehensive Income and Statements of Operations [Roll Forward]
Gain (loss) included in AOCI as of beginning of period				$ 5,705				$ (1,442)	$ 5,705	$ (1,442)	$ 1,371
Amount of gain (loss) recognized in OCI (effective portion)									(3,786)	10,348	(3,750)
Amount of gain (loss) reclassified from OCI into net revenues (effective portion)	$ 209,797	$ 225,735	$ 215,017	$ 206,358	$ 200,762	$ 231,781	$ 215,805	$ 216,662	856,907	865,010	818,607
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)									(422,233)	(403,391)	(391,979)
Total amount of gain (loss) reclassified from AOCI to income (loss) (effective portion)									3,025	3,201	(937)
Gain (loss) included in AOCI as of end of period	$ (1,106)				$ 5,705				(1,106)	5,705	(1,442)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Effect of Derivative Contracts on Accumulated Other Comprehensive Income and Statements of Operations [Roll Forward]
Amount of gain (loss) reclassified from OCI into net revenues (effective portion)									7,826	3,650	(965)
Amount of gain (loss) reclassified from OCI into cost of revenues (effective portion)									$ (4,801)	$ (449)	$ 28