Allowance for Credit Losses (Schedule Of Troubled Debt Restructuring) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) contracts	Dec. 31, 2020 USD ($) contracts
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 6,700	$ 15,000
Entity Loan Modification Program [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 6,753	$ 15,280
Financing Receivable, Modifications, Number of Contracts | contracts	43	83
Entity Loan Modification Program [Member] | Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 6,694	$ 14,991
Entity Loan Modification Program [Member] | Non-Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	59	289
Commercial Real Estate | Entity Loan Modification Program [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 1,090	$ 1,634
Financing Receivable, Modifications, Number of Contracts | contracts	5	7
Commercial Real Estate | Entity Loan Modification Program [Member] | Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 1,031	$ 1,345
Commercial Real Estate | Entity Loan Modification Program [Member] | Non-Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	59	289
Commercial | Entity Loan Modification Program [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments		$ 1,231
Financing Receivable, Modifications, Number of Contracts | contracts		1
Commercial | Entity Loan Modification Program [Member] | Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments		$ 1,231
Commercial | Entity Loan Modification Program [Member] | Non-Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments		0
Residential | Entity Loan Modification Program [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 5,641	$ 12,415
Financing Receivable, Modifications, Number of Contracts | contracts	35	75
Residential | Entity Loan Modification Program [Member] | Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 5,641	$ 12,415
Residential | Entity Loan Modification Program [Member] | Non-Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 0	$ 0
Consumer & Other, Net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contracts	3
Consumer & Other, Net | Entity Loan Modification Program [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 22
Consumer & Other, Net | Entity Loan Modification Program [Member] | Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	22
Consumer & Other, Net | Entity Loan Modification Program [Member] | Non-Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable modifications recorded investments	$ 0