Loans and Allowance for Credit Losses (Provides Detail by Portfolio Class for Reportable MEFDs) (Details) - Modified Loans To Borrowers Experiencing Financial Difficulty [Member] $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)		Sep. 30, 2023 USD ($)
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 28,900		$ 28,900
Term Extension [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 6,141		$ 7,237
Reportable modified loans percentage of portfolio class	0.03%		0.03%
Term Extension [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 120		$ 120
Reportable modified loans percentage of portfolio class	0.00%		0.00%
Term Extension [Member] | Consumer [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 62		$ 62
Reportable modified loans percentage of portfolio class	0.00%		0.00%
Term Extension [Member] | Construction and Land Development [Member] | Total Commercial [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 86		$ 86
Reportable modified loans percentage of portfolio class	0.01%		0.01%
Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 100
Reportable modified loans percentage of portfolio class			0.00%
Term Extensions and Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 21,466		$ 21,466
Reportable modified loans percentage of portfolio class	0.09%		0.09%
Other [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 66	[1]	$ 66	[2]
Reportable modified loans percentage of portfolio class	0.00%	[1]	0.00%	[2]
Other [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 66	[1]	$ 66	[2]
Reportable modified loans percentage of portfolio class	0.00%	[1]	0.00%	[2]
Total Commercial And Industrial [Member] | Term Extension [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 5,873		$ 6,969
Reportable modified loans percentage of portfolio class	0.04%		0.05%
Total Commercial And Industrial [Member] | Term Extension [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 5,873		$ 6,969
Reportable modified loans percentage of portfolio class	0.06%		0.07%
Total Commercial And Industrial [Member] | Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 100
Reportable modified loans percentage of portfolio class			0.00%
Total Commercial And Industrial [Member] | Payment Delay [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 100
Reportable modified loans percentage of portfolio class			0.00%
Total Commercial And Industrial [Member] | Term Extensions and Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 21,466		$ 21,466
Reportable modified loans percentage of portfolio class	0.16%		0.16%
Total Commercial And Industrial [Member] | Term Extensions and Payment Delay [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 4,431		$ 4,431
Reportable modified loans percentage of portfolio class	0.04%		0.04%
Total Commercial And Industrial [Member] | Term Extensions and Payment Delay [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 17,035		$ 17,035
Reportable modified loans percentage of portfolio class	0.55%		0.55%

[1] (1) Includes interest rate reduction and other than insignificant payment delays.

[2] (1) Includes interest rate reduction and other than insignificant payment delays.