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Purchased Loans - Summary of Purchased Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021
--- | --- | --- | ---
Summary of loans |  |  |
Gross loans | $ 10,313,459 | $ 10,020,914 | $ 10,688,408
Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 1,445,607 |  | 2,249,287
Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 1,222,052 |  | 955,918
Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 2,840,979 |  | 2,686,061
Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 4,577,864 |  | 4,549,027
Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | 137,115 |  | $ 172,859
Purchased loans |  |  |
Summary of loans |  |  |
Gross loans | 974,569 | 1,009,903 |
Purchased loans | Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 109,368 | 90,308 |
Purchased loans | Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 5,124 | 4,994 |
Purchased loans | Real estate – construction: | Residential |  |  |
Summary of loans |  |  |
Gross loans | 1,259 | 1,287 |
Purchased loans | Real estate – construction: | Commercial |  |  |
Summary of loans |  |  |
Gross loans | 3,865 | 3,707 |
Purchased loans | Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 196,392 | 215,773 |
Purchased loans | Real estate – 1-4 family mortgage: | Primary |  |  |
Summary of loans |  |  |
Gross loans | 122,063 | 134,070 |
Purchased loans | Real estate – 1-4 family mortgage: | Home equity |  |  |
Summary of loans |  |  |
Gross loans | 46,239 | 51,496 |
Purchased loans | Real estate – 1-4 family mortgage: | Rental/investment |  |  |
Summary of loans |  |  |
Gross loans | 18,694 | 20,229 |
Purchased loans | Real estate – 1-4 family mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 9,396 | 9,978 |
Purchased loans | Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 632,324 | 663,053 |
Purchased loans | Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 15,942 | 18,344 |
Purchased loans | Real estate – commercial mortgage: | Owner-occupied |  |  |
Summary of loans |  |  |
Gross loans | 220,247 | 234,132 |
Purchased loans | Real estate – commercial mortgage: | Non-owner occupied |  |  |
Summary of loans |  |  |
Gross loans | 396,135 | 410,577 |
Purchased loans | Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 15,942 | 18,344 |
Purchased loans | Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | $ 31,361 | $ 35,775 |

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