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Investments (Amortized Cost And Estimated Fair Value Of Debt Securities By Contractual Maturity) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Investments [Abstract]    
Securities Available-for-Sale, Due in one year or less, Cost $ 4,752  
Securities Available-for-Sale, Due after one year through five years, Cost 26,203  
Securities Available-for-Sale, Due after five years through ten years, Cost 31,808  
Securities Available-for-Sale, Due after ten years, Cost 288,149  
Securities Available-for-Sale, Cost, Total 350,912  
Securities Available-for-Sale, Due in one year or less, Estimated Fair Value 4,673  
Securities Available-for-Sale, Due after one year through five years, Estimated Fair Value 26,753  
Securities Available-for-Sale, Due after five years through ten years, Estimated Fair Value 32,205  
Securities Available-for-Sale, Due after ten years, Estimated Fair Value 282,871  
Securities Available-for-Sale, Estimated Fair Value, Total 346,502  
Securities Held-to-Maturity, Due after ten years, Cost 4,117  
Securities Held-to-Maturity, Cost, Total 4,117 13,454
Securities Held-to-Maturity, Due after ten years, Estimated Fair Value 5,335  
Securities held-to-maturity, Estimated Fair Value $ 5,335 $ 13,861