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CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Accumulated other comprehensive loss [Abstract]    
Accumulated other comprehensive loss $ (28,610)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax $ (10,620)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax