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GOODWILL (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Goodwill [Abstract]    
Beginning balance $ 42,442 $ 23,021
Goodwill acquired during the year   19,517
Foreign currency translation adjustments 513 (96)
Ending balance $ 42,955 $ 42,442