Loans And Allowance For Loan Losses (Outstanding Balance Of Loans Classified As Troubled Debt Restructurings) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 81,502	$ 75,839
Balance 90 days past due at any time during previous 12 months	994
Commercial Portfolio Segment [Member] | Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	35,139
Balance 90 days past due at any time during previous 12 months	0
Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	45
Balance 90 days past due at any time during previous 12 months	0
Commercial Portfolio Segment [Member] | Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	29,749
Balance 90 days past due at any time during previous 12 months	0
Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	4,022
Balance 90 days past due at any time during previous 12 months	353
Personal Banking Portfolio Segment [Member] | Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	4,825
Balance 90 days past due at any time during previous 12 months	48
Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	36
Balance 90 days past due at any time during previous 12 months	0
Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Financing Receivable, Troubled Debt Restructuring	7,686
Balance 90 days past due at any time during previous 12 months	$ 593