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Loans (Summary of Accretable Yield) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Disclosure Loans Summary Of Accretable Yield [Abstract]        
Beginning balance $ 40,454 $ 39,311 $ 43,431 $ 42,493
Accretion into interest income (1,385) (1,499) (4,362) (4,681)
Ending balance $ 39,069 $ 37,812 $ 39,069 $ 37,812