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Purchased Loans - Summary of Purchased Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021 | Sep. 30, 2021
--- | --- | --- | ---
Summary of loans |  |  |
Gross loans | $ 11,110,164 | $ 10,024,981 |
Loans, net of unearned income | 11,105,004 | 10,020,914 | $ 10,016,824
Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 1,513,091 | 1,423,270 |
Loans, net of unearned income | 1,513,091 |  | 1,436,019
Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 1,215,056 | 1,104,896 |
Loans, net of unearned income | 1,215,056 |  | 1,091,296
Real estate – construction: | Residential |  |  |
Summary of loans |  |  |
Gross loans | 359,754 | 302,275 |
Real estate – construction: | Commercial |  |  |
Summary of loans |  |  |
Gross loans | 855,302 | 802,621 |
Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 3,127,889 | 2,724,246 |
Loans, net of unearned income | 3,127,889 |  | 2,724,743
Real estate – 1-4 family mortgage: | Primary |  |  |
Summary of loans |  |  |
Gross loans | 2,144,119 | 1,816,120 |
Real estate – 1-4 family mortgage: | Home equity |  |  |
Summary of loans |  |  |
Gross loans | 499,626 | 474,604 |
Real estate – 1-4 family mortgage: | Rental/investment |  |  |
Summary of loans |  |  |
Gross loans | 322,844 | 288,474 |
Real estate – 1-4 family mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 161,300 | 145,048 |
Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 5,016,665 | 4,549,037 |
Loans, net of unearned income | 5,016,665 |  | 4,535,730
Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 133,597 | 128,739 |
Real estate – commercial mortgage: | Owner-occupied |  |  |
Summary of loans |  |  |
Gross loans | 1,562,952 | 1,563,351 |
Real estate – commercial mortgage: | Non-owner occupied |  |  |
Summary of loans |  |  |
Gross loans | 3,320,116 | 2,856,947 |
Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | 128,946 | 143,340 |
Loans, net of unearned income | 128,946 |  | $ 149,821
Purchased loans |  |  |
Summary of loans |  |  |
Loans, net of unearned income | 845,164 | 1,009,903 |
Purchased loans | Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 77,816 | 90,308 |
Loans, net of unearned income | 77,816 | 90,308 |
Purchased loans | Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 6,748 | 4,994 |
Loans, net of unearned income | 6,748 | 4,994 |
Purchased loans | Real estate – construction: | Residential |  |  |
Summary of loans |  |  |
Gross loans | 387 | 1,287 |
Loans, net of unearned income | 387 | 1,287 |
Purchased loans | Real estate – construction: | Commercial |  |  |
Summary of loans |  |  |
Gross loans | 6,361 | 3,707 |
Loans, net of unearned income | 6,361 | 3,707 |
Purchased loans | Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 171,088 | 215,773 |
Loans, net of unearned income | 171,088 | 215,773 |
Purchased loans | Real estate – 1-4 family mortgage: | Primary |  |  |
Summary of loans |  |  |
Gross loans | 102,234 | 134,070 |
Loans, net of unearned income | 102,234 | 134,070 |
Purchased loans | Real estate – 1-4 family mortgage: | Home equity |  |  |
Summary of loans |  |  |
Gross loans | 42,861 | 51,496 |
Loans, net of unearned income | 42,861 | 51,496 |
Purchased loans | Real estate – 1-4 family mortgage: | Rental/investment |  |  |
Summary of loans |  |  |
Gross loans | 16,679 | 20,229 |
Loans, net of unearned income | 16,679 | 20,229 |
Purchased loans | Real estate – 1-4 family mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 9,314 | 9,978 |
Loans, net of unearned income | 9,314 | 9,978 |
Purchased loans | Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 564,812 | 663,053 |
Loans, net of unearned income | 564,812 | 663,053 |
Purchased loans | Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Loans, net of unearned income | 13,571 | 18,344 |
Purchased loans | Real estate – commercial mortgage: | Owner-occupied |  |  |
Summary of loans |  |  |
Gross loans | 194,756 | 234,132 |
Loans, net of unearned income | 194,756 | 234,132 |
Purchased loans | Real estate – commercial mortgage: | Non-owner occupied |  |  |
Summary of loans |  |  |
Gross loans | 356,485 | 410,577 |
Loans, net of unearned income | 356,485 | 410,577 |
Purchased loans | Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 13,571 | 18,344 |
Purchased loans | Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | 24,700 | 35,775 |
Loans, net of unearned income | $ 24,700 | $ 35,775 |

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