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Loans and Allowance for Credit Losses - Balance of Each Major Product Type (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | $ 3,268,557 |  | $ 3,083,976 |  |  |
Net deferred loan fees | (2,266) |  | (2,257) |  |  |
Loans held for investment | 3,266,291 |  | 3,081,719 |  |  |
Allowance for credit losses | (35,406) | $ (34,653) | (34,431) | $ (33,984) | $ (34,172) | $ (28,389)
Loans held for investment, net of allowance for credit losses | 3,230,885 |  | 3,047,288 |  |  |
Commercial |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 2,774,001 |  | 2,685,419 |  |  |
Loans held for investment | 2,771,229 |  | 2,682,711 |  |  |
Allowance for credit losses | (24,708) | (28,895) | (29,015) | (27,553) | (27,119) | (19,216)
Commercial land and development |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 4,766 |  | 15,551 |  |  |
Loans held for investment | 4,772 |  | 15,534 |  |  |
Allowance for credit losses | (72) | (164) | (178) | (184) | (226) | (54)
Commercial construction |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 72,444 |  | 62,863 |  |  |
Loans held for investment | 72,140 |  | 62,544 |  |  |
Allowance for credit losses | (1,097) | (697) | (718) | (1,212) | (1,438) | (645)
Residential construction |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 9,011 |  | 15,456 |  |  |
Loans held for investment | 9,013 |  | 15,452 |  |  |
Allowance for credit losses | (100) | (114) | (89) | (217) | (175) | (49)
Residential |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 29,641 |  | 25,893 |  |  |
Loans held for investment | 29,666 |  | 25,922 |  |  |
Allowance for credit losses | (195) | (164) | (151) | (152) | (181) | (175)
Farmland |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 48,852 |  | 51,669 |  |  |
Loans held for investment | 48,831 |  | 51,646 |  |  |
Allowance for credit losses | (402) | (438) | (399) | (236) | (219) | (644)
Secured |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 154,080 |  | 165,109 |  |  |
Loans held for investment | 154,626 |  | 165,600 |  |  |
Allowance for credit losses | (7,386) | (3,262) | (3,314) | (3,751) | (4,258) | (7,098)
Unsecured |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 23,198 |  | 23,850 |  |  |
Loans held for investment | 23,213 |  | 23,857 |  |  |
Allowance for credit losses | (214) | (259) | (189) | (209) | (152) | (116)
Consumer and other |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |
Subtotal | 152,564 |  | 38,166 |  |  |
Loans held for investment | 152,801 |  | 38,453 |  |  |
Allowance for credit losses | $ (1,232) | $ (660) | $ (378) | $ (470) | $ (404) | $ (347)

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