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Purchased Loans - Summary of Purchased Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2020
--- | --- | --- | ---
Summary of loans |  |  |
Gross loans | $ 10,149,242 | $ 10,933,647 | $ 10,997,304
Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 1,634,633 |  | 2,641,598
Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 1,051,359 |  | 791,108
Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 2,702,091 |  | 2,788,513
Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 4,530,169 |  | 4,410,753
Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | 156,987 |  | $ 284,553
Purchased loans |  |  |
Summary of loans |  |  |
Gross loans | 1,256,698 | 1,514,107 |
Purchased loans | Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 124,725 | 176,513 |
Purchased loans | Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 12,746 | 30,952 |
Purchased loans | Real estate – construction: | Residential |  |  |
Summary of loans |  |  |
Gross loans | 2,564 | 2,859 |
Purchased loans | Real estate – construction: | Commercial |  |  |
Summary of loans |  |  |
Gross loans | 10,182 | 28,093 |
Purchased loans | Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 266,517 | 341,744 |
Purchased loans | Real estate – 1-4 family mortgage: | Primary |  |  |
Summary of loans |  |  |
Gross loans | 166,535 | 214,770 |
Purchased loans | Real estate – 1-4 family mortgage: | Home equity |  |  |
Summary of loans |  |  |
Gross loans | 63,088 | 80,392 |
Purchased loans | Real estate – 1-4 family mortgage: | Rental/investment |  |  |
Summary of loans |  |  |
Gross loans | 25,944 | 31,928 |
Purchased loans | Real estate – 1-4 family mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 10,950 | 14,654 |
Purchased loans | Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 806,860 | 905,223 |
Purchased loans | Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 23,902 | 29,454 |
Purchased loans | Real estate – commercial mortgage: | Owner-occupied |  |  |
Summary of loans |  |  |
Gross loans | 290,041 | 323,041 |
Purchased loans | Real estate – commercial mortgage: | Non-owner occupied |  |  |
Summary of loans |  |  |
Gross loans | 492,917 | 552,728 |
Purchased loans | Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 23,902 | 29,454 |
Purchased loans | Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | $ 45,850 | $ 59,675 |

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