Securities (Schedule Of Activity For Available-For-Sale Securities Related To Sales, Maturities And Calls) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Securities [Abstract]        
Proceeds from calls and maturities $ 8,000 $ 6,080 $ 10,310 $ 18,000
Proceeds from sales 30,312   48,381 18,419
Realized gains 686   1,400 379
Realized losses (2)   (2)  
Net impairment loss recognized in earnings         (499)
Tax benefit (provision) related to net realized gains and losses $ (265)   $ (542) $ 46