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Adoption of New Accounting Pronouncements and Issued Not Yet Effective Accounting Standards (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2020 | Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase | $ 52 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 83,197 | $ 85,379 | $ 85,675 | $ 56,679
Off-Balance Sheet, Credit Loss, Liability | 4,282 | 5,214 | 116 |
Net deferred tax asset (liability) | 450 |  | 2,892 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 1,110,759 | 1,069,226 | 1,040,256 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 6,871,122 | 7,141,891 | 7,177,785 |
Commercial Financial Agricultural [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 25,608 |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 23,480 |
Construction Real Estate [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 7,288 |
Residential real estate |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 11,363 |
Consumer Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 17,418 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 3,002,936 |  |  |
Finance Leases Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 518 |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase | 52 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 6,090 |  | 6,090 |
Off-Balance Sheet, Credit Loss, Liability | 3,900 |  | 3,866 |
Net deferred tax asset (liability) | (2,100) |  | (2,115) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (8,000) |  | (7,956) |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  |  | (119) |
Cumulative Effect, Period of Adoption, Adjustment | Commercial Financial Agricultural [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | (8,257) |
Cumulative Effect, Period of Adoption, Adjustment | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 2,119 |
Cumulative Effect, Period of Adoption, Adjustment | Construction Real Estate [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | (1,898) |
Cumulative Effect, Period of Adoption, Adjustment | Residential real estate |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 3,121 |
Cumulative Effect, Period of Adoption, Adjustment | Consumer Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 10,925 |
Cumulative Effect, Period of Adoption, Adjustment | Finance Leases Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 80 |
Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 91,765 |
Off-Balance Sheet, Credit Loss, Liability |  |  | 3,982 |
Net deferred tax asset (liability) |  |  | 777 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |  |  | 1,032,300 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  |  | 7,177,666 |
Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial Financial Agricultural [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 17,351 |
Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 25,599 |
Cumulative Effect, Period of Adoption, Adjusted Balance | Construction Real Estate [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 5,390 |
Cumulative Effect, Period of Adoption, Adjusted Balance | Residential real estate |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 14,484 |
Cumulative Effect, Period of Adoption, Adjusted Balance | Consumer Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 28,343 |
Cumulative Effect, Period of Adoption, Adjusted Balance | Finance Leases Portfolio Segment [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  | 598 |
Retained Earnings |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 776,294 | $ 847,235 | 704,764 | $ 646,847
Accounting Standards Update 2016-13 | Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | $ 8,000 |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |  |  | (7,956) |
Accounting Standards Update 2016-13 | Retained Earnings | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |  |  | $ 696,808 |

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