Loans And Allowance For Loan Losses Loans And Allowance For Loan Losses (Troubled Debt Restructurings by Type of Modification) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	$ 79,450	$ 75,839
Performing/Accruing TDR Commercial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	55,934	50,904
Performing/AccruingTDR - Assistance programs [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	8,365	7,410
Performing/Accruing TDR - Consumer Bankruptcy [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	3,592	4,103
Performing/Accruing TDR - Other Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	3,621	3,663
TDR Non-accrual loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	$ 7,938	$ 9,759