Loans and Allowance for Loan Losses ( Financial Effect of Loan Modifications Made To Borrowers Experiencing Financial Difficulty) (Details)	3 Months Ended
Mar. 31, 2023
Total commercial and industrial \| Commercial, financial and agricultural
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Weighted Average Interest Rate Reduction	3.30%
Weighted Average Term Extension (in months)	8 months
Total commercial and industrial \| Owner-occupied
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Weighted Average Interest Rate Reduction	1.70%
Weighted Average Term Extension (in months)	9 months
Total commercial real estate \| 1-4 family properties
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Weighted Average Interest Rate Reduction	0.00%
Weighted Average Term Extension (in months)	12 months
Total consumer \| Mortgage Reporting Unit
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Weighted Average Interest Rate Reduction	2.20%
Weighted Average Term Extension (in months)	0 months
Total consumer \| Home equity
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Weighted Average Interest Rate Reduction	1.10%
Weighted Average Term Extension (in months)	334 months
Total consumer \| Other consumer loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Weighted Average Interest Rate Reduction	3.50%
Weighted Average Term Extension (in months)	68 months

Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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