Loans And Allowance For Credit Losses (Modified Amortized Cost) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 32,860	$ 28,831
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.20%	0.20%
Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 29,178	$ 26,143
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	2,706	1,724
Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	976	634
Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	275
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	$ 11,648	$ 3,104
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.20%	0.10%
Commercial Portfolio Segment [Member] | Business | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 11,648	$ 3,104
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	$ 17,004	$ 23,039
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.50%	0.70%
Commercial Portfolio Segment [Member] | Real estate - business | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	$ 17,004	$ 23,039
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	$ 3,232	$ 1,666
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.10%	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	$ 526	$ 0
Personal Banking Portfolio Segment [Member] | Real estate - personal | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	2,706	1,666
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	$ 31	$ 129
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	$ 0	$ 0
Personal Banking Portfolio Segment [Member] | Consumer | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	58
Personal Banking Portfolio Segment [Member] | Consumer | Interest Rate Below Market Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	31	16
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	$ 945	$ 893
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.20%	0.20%
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	945	618
Personal Banking Portfolio Segment [Member] | Consumer credit card | Interest/Fees Forgiven
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified in Period, Amount	0	275
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