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Loans And Allowance For Loan Losses - Troubled Debt Restructurings (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract	Dec. 31, 2020 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	206	382	352
Total loans	$ 131,186,000	$ 48,932,000	$ 76,615,000
Write-down	$ 0	$ 0	$ 0
Commercial And Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	115	176	174
Total loans	$ 105,610,000	$ 27,618,000	$ 28,917,000
Commercial And Industrial | Commercial, financial, and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	86	152	152
Total loans	$ 35,797,000	$ 20,842,000	$ 22,851,000
Commercial And Industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	29	24	22
Total loans	$ 69,813,000	$ 6,776,000	$ 6,066,000
Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	25	30	35
Total loans	$ 18,654,000	$ 6,392,000	$ 34,579,000
Commercial Real Estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	7	9	9
Total loans	$ 11,636,000	$ 3,130,000	$ 31,099,000
Commercial Real Estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	14	13	22
Total loans	$ 3,850,000	$ 1,254,000	$ 2,874,000
Commercial Real Estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	4	8	4
Total loans	$ 3,168,000	$ 2,008,000	$ 606,000
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	66	176	143
Total loans	$ 6,922,000	$ 14,922,000	$ 13,119,000
Consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	10	18	23
Total loans	$ 1,442,000	$ 3,518,000	$ 4,655,000
Consumer | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	41	55	63
Total loans	$ 4,875,000	$ 5,249,000	$ 4,500,000
Consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	15	103	57
Total loans	$ 605,000	$ 6,155,000	$ 3,964,000
Below Market Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	118,530,000	32,801,000	52,550,000
Below Market Interest Rate | Commercial And Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	100,474,000	18,654,000	15,475,000
Below Market Interest Rate | Commercial And Industrial | Commercial, financial, and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	34,518,000	12,746,000	10,939,000
Below Market Interest Rate | Commercial And Industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	65,956,000	5,908,000	4,536,000
Below Market Interest Rate | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	12,044,000	6,209,000	32,054,000
Below Market Interest Rate | Commercial Real Estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	5,026,000	3,130,000	29,679,000
Below Market Interest Rate | Commercial Real Estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	3,850,000	1,131,000	1,769,000
Below Market Interest Rate | Commercial Real Estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	3,168,000	1,948,000	606,000
Below Market Interest Rate | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	6,012,000	7,938,000	5,021,000
Below Market Interest Rate | Consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	1,176,000	2,512,000	1,866,000
Below Market Interest Rate | Consumer | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	4,836,000	4,991,000	1,970,000
Below Market Interest Rate | Consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	0	435,000	1,185,000
Other Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	12,656,000	16,131,000	24,065,000
Other Concessions | Commercial And Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	5,136,000	8,964,000	13,442,000
Other Concessions | Commercial And Industrial | Commercial, financial, and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	1,279,000	8,096,000	11,912,000
Other Concessions | Commercial And Industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	3,857,000	868,000	1,530,000
Other Concessions | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	6,610,000	183,000	2,525,000
Other Concessions | Commercial Real Estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	6,610,000	0	1,420,000
Other Concessions | Commercial Real Estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	0	123,000	1,105,000
Other Concessions | Commercial Real Estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	0	60,000	0
Other Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	910,000	6,984,000	8,098,000
Other Concessions | Consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	266,000	1,006,000	2,789,000
Other Concessions | Consumer | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	39,000	258,000	2,530,000
Other Concessions | Consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	605,000	5,720,000	2,779,000
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	$ 0	$ 0	$ 0

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
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