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Securities (Summary Of Activity Related To The Credit Component Recognized On Debt Securities Available For Sale Of Other-Than-Temporary Impairment Recognized In Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Securities [Abstract]  
Beginning Balance $ (2,903)
Additions for the credit component on debt securities in which other-than-temporary impairment was not previously recognized (54)
Securities sold during the period   
Ending Balance $ (2,957)