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SHARE-BASED COMPENSATION (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
SHARE-BASED COMPENSATION      
Net share-based compensation effect $ 4,581 $ 2,617 $ 374
Salaries and employee benefits
     
SHARE-BASED COMPENSATION      
Net share-based compensation effect 4,432 2,409 319
Director stock awards
     
SHARE-BASED COMPENSATION      
Net share-based compensation effect 90 153 55
Legal and professional services
     
SHARE-BASED COMPENSATION      
Net share-based compensation effect $ 59 $ 55