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Loans - Schedule of Non-Purchased Loans and Leases (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024
--- | --- | --- | ---
Summary of loans |  |  |
Gross loans | $ 13,059,714 | $ 12,889,500 |
Unearned income | (4,121) | (4,480) |
Loans, net of unearned income | 13,055,593 | 12,885,020 | $ 12,500,525
Commercial, financial, agricultural |  |  |
Summary of loans |  |  |
Gross loans | 1,888,580 | 1,885,817 |
Loans, net of unearned income | 1,888,580 |  | 1,869,408
Lease financing |  |  |
Summary of loans |  |  |
Gross loans | 89,533 | 95,071 |
Loans, net of unearned income | 85,412 |  | 107,474
Real estate – construction: |  |  |
Summary of loans |  |  |
Gross loans | 1,090,862 | 1,093,653 |
Loans, net of unearned income | 1,090,862 |  | 1,243,535
Real estate – construction: | Residential |  |  |
Summary of loans |  |  |
Gross loans | 273,583 | 256,655 |
Real estate – construction: | Commercial |  |  |
Summary of loans |  |  |
Gross loans | 817,279 | 836,998 |
Real estate – 1-4 family mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 3,583,080 | 3,488,877 |
Loans, net of unearned income | 3,583,080 |  | 3,429,286
Real estate – 1-4 family mortgage: | Primary |  |  |
Summary of loans |  |  |
Gross loans | 2,471,818 | 2,428,076 |
Real estate – 1-4 family mortgage: | Home equity |  |  |
Summary of loans |  |  |
Gross loans | 551,305 | 544,158 |
Real estate – 1-4 family mortgage: | Rental/investment |  |  |
Summary of loans |  |  |
Gross loans | 434,069 | 402,938 |
Real estate – 1-4 family mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 125,888 | 113,705 |
Real estate – 1-4 family mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 125,888 | 113,705 |
Real estate – commercial mortgage: |  |  |
Summary of loans |  |  |
Gross loans | 6,320,120 | 6,236,068 |
Loans, net of unearned income | 6,320,120 |  | 5,753,230
Real estate – commercial mortgage: | Owner-occupied |  |  |
Summary of loans |  |  |
Gross loans | 1,949,177 | 1,894,679 |
Real estate – commercial mortgage: | Non-owner occupied |  |  |
Summary of loans |  |  |
Gross loans | 4,262,145 | 4,226,937 |
Real estate – commercial mortgage: | Land development |  |  |
Summary of loans |  |  |
Gross loans | 108,798 | 114,452 |
Installment loans to individuals |  |  |
Summary of loans |  |  |
Gross loans | 87,539 | $ 90,014 |
Loans, net of unearned income | $ 87,539 |  | $ 97,592

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