Loans (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Summary of loans, by loan type | ||
| Total loans | $ 9,784,037 | $ 9,460,422 |
| Commercial, financial and agricultural | ||
| Summary of loans, by loan type | ||
| Total loans | 5,990,775 | 5,603,505 |
| Real estate - mortgage | ||
| Summary of loans, by loan type | ||
| Total loans | 1,091,215 | 1,074,510 |
| Commercial real estate | ||
| Summary of loans, by loan type | ||
| Total loans | 2,279,623 | 2,338,593 |
| Consumer | ||
| Summary of loans, by loan type | ||
| Total loans | 50,686 | 51,003 |
| Foreign | ||
| Summary of loans, by loan type | ||
| Total loans | $ 371,738 | $ 392,811 |