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Loans (Nonaccrual) (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | $ 63,352 |  | $ 45,788 |  |  |
FinancingReceivableNonaccrualWithAllowance | 26,241 |  | 22,390 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 91,758 | $ 89,785 | 87,966 | $ 87,237 | $ 86,575 | $ 83,745
Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 3,659 |  | 2,370 |  |  |
Commercial Financial And Agricultural [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 38,067 |  | 18,778 |  |  |
FinancingReceivableNonaccrualWithAllowance | 7,946 |  | 5,463 |  |  |
Commercial Financial And Agricultural [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 2,427 |  | 1,261 |  |  |
Construction Real Estate Commercial [Domain] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 21 |  | 8 |  |  |
FinancingReceivableNonaccrualWithAllowance | 0 |  | 0 |  |  |
Construction Real Estate Commercial [Domain] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 0 |  | 0 |  |  |
Residential Real Estate Commercial [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 1,394 |  | 3,755 |  |  |
FinancingReceivableNonaccrualWithAllowance | 0 |  | 1,945 |  |  |
Residential Real Estate Commercial [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 0 |  | 39 |  |  |
Construction Real Estate Retail |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 58 |  | 22 |  |  |
Construction Real Estate Retail | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 39 |  | 1 |  |  |
Residential Real Estate - Mortgage [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 13,456 |  | 11,368 |  |  |
Residential Real Estate - Mortgage [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 169 |  | 128 |  |  |
Residential Real Estate - HELOC [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 1,101 |  | 918 |  |  |
Residential Real Estate - HELOC [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 79 |  | 154 |  |  |
Residential Real Estate - Installment [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 26 |  | 31 |  |  |
Residential Real Estate - Installment [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 19 |  | 1 |  |  |
Commercial Real Estate [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 23,801 |  | 23,230 |  |  |
FinancingReceivableNonaccrualWithAllowance | 982 |  | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 20,515 | 20,499 | 19,571 | 18,856 | 16,855 | 16,374
Commercial Real Estate [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 124 |  | 0 |  |  |
Bank Overdrafts |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 0 |  | 0 |  |  |
Bank Overdrafts | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 0 |  | 0 |  |  |
Consumer [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 2,501 |  | 2,643 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 25,475 | 25,716 | 26,081 | 27,997 | 27,579 | 27,713
Consumer [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 772 |  | 786 |  |  |
Check loans |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 0 |  | 0 |  |  |
FinancingReceivableNonaccrualWithAllowance | 0 |  | 0 |  |  |
Check loans | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 0 |  | 0 |  |  |
Finance Leases Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Nonaccrual, No Allowance | 69 |  | 17 |  |  |
FinancingReceivableNonaccrualWithAllowance | 171 |  | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 256 | $ 192 | 151 | $ 165 | $ 161 | $ 117
Finance Leases Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 30 |  | $ 0 |  |  |

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