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Summary Of Significant Accounting Policies (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2015
USD ($)
contracts
Dec. 31, 2014
USD ($)
contracts
Other real estate owned $ 43.9 $ 45.6
Bank-owned life insurance $ 136.2 $ 121.4
Number of covered call option contracts outstanding | contracts 0 0
Land Improvements    
Premises and equipment, useful lives 15 years  
Minimum    
Tax benefit realized on settlement, percentage 50.00%  
Minimum | Furniture, Fixtures and Equipment    
Premises and equipment, useful lives 2 years  
Minimum | Software and Computer-Related Equipment    
Premises and equipment, useful lives   2 years
Minimum | Buildings and Improvements    
Premises and equipment, useful lives 7 years  
Maximum    
Finite-lived intangibles, useful life 20 years  
Maximum | Furniture, Fixtures and Equipment    
Premises and equipment, useful lives 12 years  
Maximum | Software and Computer-Related Equipment    
Premises and equipment, useful lives   5 years
Maximum | Buildings and Improvements    
Premises and equipment, useful lives 39 years