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Loans - Summary of Loans and Leases (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Summary of loans |  |
Gross loans | $ 12,358,017 | $ 11,585,458
Unearned income | (6,787) | (7,154)
Loans, net of unearned income | 12,351,230 | 11,578,304
Commercial, financial, agricultural |  |
Summary of loans |  |
Gross loans | 1,871,821 | 1,673,883
Loans, net of unearned income | 1,871,821 | 1,673,883
Lease financing |  |
Summary of loans |  |
Gross loans | 122,807 | 122,167
Loans, net of unearned income | 116,020 | 115,013
Real Estate - Construction |  |
Summary of loans |  |
Gross loans | 1,333,397 | 1,330,337
Loans, net of unearned income | 1,333,397 | 1,330,337
Real Estate - Construction | Residential |  |
Summary of loans |  |
Gross loans | 269,616 | 355,500
Real Estate - Construction | Commercial |  |
Summary of loans |  |
Gross loans | 1,063,781 | 974,837
Real Estate - 1-4 Family Mortgage |  |
Summary of loans |  |
Gross loans | 3,439,919 | 3,216,263
Loans, net of unearned income | 3,439,919 | 3,216,263
Real Estate - 1-4 Family Mortgage | Primary |  |
Summary of loans |  |
Gross loans | 2,422,482 | 2,222,856
Real Estate - 1-4 Family Mortgage | Home equity |  |
Summary of loans |  |
Gross loans | 522,688 | 501,906
Real Estate - 1-4 Family Mortgage | Rental/investment |  |
Summary of loans |  |
Gross loans | 373,755 | 334,382
Real Estate - 1-4 Family Mortgage | Land development |  |
Summary of loans |  |
Gross loans | 120,994 | 157,119
Real Estate - 1-4 Family Mortgage | Land development |  |
Summary of loans |  |
Gross loans | 120,994 | 157,119
Real Estate - Commercial Mortgage |  |
Summary of loans |  |
Gross loans | 5,486,550 | 5,118,063
Loans, net of unearned income | 5,486,550 | 5,118,063
Real Estate - Commercial Mortgage | Owner-occupied |  |
Summary of loans |  |
Gross loans | 1,648,961 | 1,539,296
Real Estate - Commercial Mortgage | Non-owner occupied |  |
Summary of loans |  |
Gross loans | 3,733,174 | 3,452,910
Real Estate - Commercial Mortgage | Land development |  |
Summary of loans |  |
Gross loans | 104,415 | 125,857
Installment loans to individuals |  |
Summary of loans |  |
Gross loans | 103,523 | 124,745
Loans, net of unearned income | $ 103,523 | $ 124,745

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