Loans And Allowance For Credit Losses (Outstanding Balance Of Loans Classified As Trouble Debt Restructurings) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	$ 125,792	$ 64,887
Balance 90 days past due at any time during previous 12 months	1,529
Commercial Portfolio Segment [Member] | Business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	30,254
Balance 90 days past due at any time during previous 12 months	0
Commercial Portfolio Segment [Member] | Real estate - construction and land
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	10,101
Balance 90 days past due at any time during previous 12 months	0
Commercial Portfolio Segment [Member] | Real estate - business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	73,804
Balance 90 days past due at any time during previous 12 months	0
Personal Banking Portfolio Segment [Member] | Real estate - personal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	3,220
Balance 90 days past due at any time during previous 12 months	729
Personal Banking Portfolio Segment [Member] | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	20
Balance 90 days past due at any time during previous 12 months	0
Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	2,637
Balance 90 days past due at any time during previous 12 months	282
Personal Banking Portfolio Segment [Member] | Consumer credit card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled Debt Restructurings	5,756
Balance 90 days past due at any time during previous 12 months	$ 518