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Loans and Allowance for Credit Losses - Nonaccrual Loans, Excluding Loans Acquired, Segregated by Class of Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | $ 81,135 | $ 58,434
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 925 | 782
Consumer | Credit cards |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 267 | 349
Consumer | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 658 | 433
Real Estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 38,475 | 40,116
Real Estate | Construction and development |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 2,964 | 2,799
Real Estate | Single family residential |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 23,662 | 22,319
Real Estate | Other commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 11,849 | 14,998
Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 41,732 | 17,533
Commercial | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 41,008 | 17,356
Commercial | Agricultural |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | 724 | 177
Other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in nonaccrual status | $ 3 | $ 3

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