DERIVATIVE FINANCIAL INSTRUMENTS (Details 2) (Cash flow hedges, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Gain (Loss) on Derivatives in Cash Flow Hedging Relationship
Amount of Gains (Losses) Deferred in Accumulated Other Comprehensive Income (Loss) on Derivatives (Effective Portion)	$ 903	$ 4,409
Amount and Location of Gains (Losses) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss) (Effective Portion)	(670)	(497)
Amount and Location of (Losses) Recognized in Income (Loss) on Derivatives (Ineffective Portion)	39	368
Expected reclassification out of accumulated other comprehensive income (loss) into earnings during the next twelve months	300
Inflation
Gain (Loss) on Derivatives in Cash Flow Hedging Relationship
Amount of Gains (Losses) Deferred in Accumulated Other Comprehensive Income (Loss) on Derivatives (Effective Portion)	903	4,409
Amount and Location of Gains (Losses) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss) (Effective Portion)	(670)	(497)
Amount and Location of (Losses) Recognized in Income (Loss) on Derivatives (Ineffective Portion)	$ 39	$ 368