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LHFI and ACL, LHFI - Summary of Balance in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | $ 1,154 | $ 13,661 |  |
Individually Evaluated for Credit Loss | 24,854 | 37,140 |  |
Collectively Evaluated for Credit Loss | 155,917 | 146,609 |  |
Collectively Evaluated for Credit Loss | 13,649,379 | 13,052,802 |  |
Total LHFI | 13,674,233 | 13,089,942 |  |
Total | 157,071 | 160,270 | $ 139,367 | $ 120,214
Commercial and Industrial Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 811 | 10,518 |  |
Individually Evaluated for Credit Loss | 1,804 | 22,503 |  |
Collectively Evaluated for Credit Loss | 19,758 | 16,502 |  |
Collectively Evaluated for Credit Loss | 1,997,660 | 1,818,219 |  |
Total LHFI | 1,999,464 | 1,840,722 |  |
Total | 20,569 | 27,020 | 26,638 |
Consumer Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 103 |  |  |
Individually Evaluated for Credit Loss | 103 |  |  |
Collectively Evaluated for Credit Loss | 5,740 | 5,141 |  |
Collectively Evaluated for Credit Loss | 163,651 | 156,569 |  |
Total LHFI | 163,754 | 156,569 |  |
Total | 5,843 | 5,141 | 5,794 |
State and Other Political Subdivision Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 0 | 0 |  |
Individually Evaluated for Credit Loss | 0 | 0 |  |
Collectively Evaluated for Credit Loss | 865 | 1,250 |  |
Collectively Evaluated for Credit Loss | 1,061,584 | 969,836 |  |
Total LHFI | 1,061,584 | 969,836 |  |
Total | 865 | 1,250 | 646 |
Other Commercial Loans and Leases [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 0 | 892 |  |
Individually Evaluated for Credit Loss | 764 | 896 |  |
Collectively Evaluated for Credit Loss | 8,009 | 5,355 |  |
Collectively Evaluated for Credit Loss | 819,092 | 588,116 |  |
Total LHFI | 819,856 | 589,012 |  |
Total | 8,009 | 6,247 | 7,072 |
Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 0 | 0 |  |
Individually Evaluated for Credit Loss | 156 | 0 |  |
Collectively Evaluated for Credit Loss | 6,632 | 6,452 |  |
Collectively Evaluated for Credit Loss | 549,197 | 587,244 |  |
Total LHFI | 549,353 | 587,244 |  |
Total | 6,632 | 6,452 | 17,192 |
Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 99 |  |  |
Individually Evaluated for Credit Loss | 848 | 521 |  |
Collectively Evaluated for Credit Loss | 13,485 | 11,347 |  |
Collectively Evaluated for Credit Loss | 703,666 | 650,029 |  |
Total LHFI | 704,514 | 650,550 |  |
Total | 13,584 | 11,347 | 12,942 |
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 141 | 2,251 |  |
Individually Evaluated for Credit Loss | 2,531 | 9,783 |  |
Collectively Evaluated for Credit Loss | 35,042 | 35,645 |  |
Collectively Evaluated for Credit Loss | 3,301,992 | 3,523,499 |  |
Total LHFI | 3,304,523 | 3,533,282 |  |
Total | 35,183 | 37,896 | 24,043 |
Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 15,234 | 1,904 |  |
Collectively Evaluated for Credit Loss | 20,410 | 19,491 |  |
Collectively Evaluated for Credit Loss | 2,109,038 | 1,631,926 |  |
Total LHFI | 2,124,272 | 1,633,830 |  |
Total | 20,410 | 19,491 | 4,488 |
Other Loans Secured by Real Estate [Member] | Other Construction [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 0 | 0 |  |
Individually Evaluated for Credit Loss | 0 | 0 |  |
Collectively Evaluated for Credit Loss | 4,889 | 13,297 |  |
Collectively Evaluated for Credit Loss | 595,238 | 829,904 |  |
Total LHFI | 595,238 | 829,904 |  |
Total | 4,889 | 13,297 | 5,758 |
Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |
Individually Evaluated for Credit Loss | 3,414 | 1,533 |  |
Collectively Evaluated for Credit Loss | 41,087 | 32,129 |  |
Collectively Evaluated for Credit Loss | 2,348,261 | 2,297,460 |  |
Total LHFI | 2,351,675 | 2,298,993 |  |
Total | $ 41,087 | $ 32,129 | $ 34,794 |

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