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Loans And Allowance For Loan Losses (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for sale $ 1.8 $ 7.5
Actual loss period 3 years  
Period to sell loans from the date of closing 1 month  
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans $ 0.4  
Accrued additional interest income 0.4  
Interest And Fee Income Nonaccruing Loans $ 0.2  
Troubled debt restructuring default period 90 days  
Troubled debt restructuring Period 12 months  
Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans to individuals and businesses $ 571.0  
Percentage of loans to individuals and businesses 32.00%  
Real Estate Mortgage [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unpaid principal of mortgage loans serviced for others $ 434.3 $ 432.3
Healthcare [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans to individuals and businesses $ 427.2  
Percentage of loans to individuals and businesses 24.00%  
Maximum [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of days for independent appraisals on real estate collateral 30 days