Loans And Allowance For Credit Losses (Modified Amortized Cost) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 53,544	$ 72,732
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.30%	0.40%
Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 51,340	$ 68,018
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	1,241	2,852
Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	739	1,320
Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	224	487
Other Loan Restructuring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	55
Commercial Portfolio Segment [Member] | Business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 17,097	$ 18,193
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.30%	0.30%
Commercial Portfolio Segment [Member] | Business | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 17,097	$ 18,193
Commercial Portfolio Segment [Member] | Business | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Business | Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Business | Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Business | Other Loan Restructuring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Real estate - business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 33,966	$ 49,548
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.90%	1.40%
Commercial Portfolio Segment [Member] | Real estate - business | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 33,966	$ 49,548
Commercial Portfolio Segment [Member] | Real estate - business | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Real estate - business | Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Real estate - business | Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Commercial Portfolio Segment [Member] | Real estate - business | Other Loan Restructuring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Personal Banking Portfolio Segment [Member] | Real estate - personal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 1,469	$ 3,023
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.00%	0.10%
Personal Banking Portfolio Segment [Member] | Real estate - personal | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 246	$ 246
Personal Banking Portfolio Segment [Member] | Real estate - personal | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	1,223	2,777
Personal Banking Portfolio Segment [Member] | Real estate - personal | Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Personal Banking Portfolio Segment [Member] | Real estate - personal | Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Personal Banking Portfolio Segment [Member] | Real estate - personal | Other Loan Restructuring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Personal Banking Portfolio Segment [Member] | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 57	$ 182
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.00%	0.00%
Personal Banking Portfolio Segment [Member] | Consumer | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 31	$ 31
Personal Banking Portfolio Segment [Member] | Consumer | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	18	75
Personal Banking Portfolio Segment [Member] | Consumer | Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	8	21
Personal Banking Portfolio Segment [Member] | Consumer | Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Personal Banking Portfolio Segment [Member] | Consumer | Other Loan Restructuring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	55
Personal Banking Portfolio Segment [Member] | Consumer credit card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 955	$ 1,786
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.20%	0.30%
Personal Banking Portfolio Segment [Member] | Consumer credit card | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0	$ 0
Personal Banking Portfolio Segment [Member] | Consumer credit card | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	0
Personal Banking Portfolio Segment [Member] | Consumer credit card | Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	731	1,299
Personal Banking Portfolio Segment [Member] | Consumer credit card | Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	224	487
Personal Banking Portfolio Segment [Member] | Consumer credit card | Other Loan Restructuring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0	$ 0