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CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data
Jun. 30, 2011
Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) [Abstract]    
Securities available for sale, amortized cost $ 570,905 $ 578,897
Common stock, par value $ 0.0625 $ 0.0625
Common stock, shares authorized 30,000,000 30,000,000
Common stock, shares issued 16,266,483 16,171,618