Loans And Allowance For Credit Losses (Troubled Debt Restructurings by Type of Modification) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	$ 125,792	$ 64,887
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	108,789	46,867
Assistance programs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	5,865	6,146
Other consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	4,681	4,787
Non-accrual loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	$ 6,457	$ 7,087