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Allowance for Credit Losses - Aging By Loan Class (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | $ 4,768 | $ 5,597
Loans | 8,112,481 | 8,058,961
Current |  |
Financing receivable recorded investment |  |
Loans | 8,042,936 | 7,995,156
Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 69,545 | 63,805
30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 37,047 | 12,872
60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 13,240 | 5,195
90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 19,258 | 45,738
Commercial, financial and agricultural |  |
Financing receivable recorded investment |  |
Loans | 4,715,769 | 4,802,622
Commercial, financial and agricultural | Domestic | Commercial. |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 462 | 539
Loans | 1,581,207 | 1,628,230
Commercial, financial and agricultural | Domestic | Commercial. | Current |  |
Financing receivable recorded investment |  |
Loans | 1,573,026 | 1,594,022
Commercial, financial and agricultural | Domestic | Commercial. | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 8,181 | 34,208
Commercial, financial and agricultural | Domestic | Commercial. | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 3,234 | 2,387
Commercial, financial and agricultural | Domestic | Commercial. | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 334 | 1,583
Commercial, financial and agricultural | Domestic | Commercial. | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 4,613 | 30,238
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 59 | 4
Loans | 2,810,956 | 2,793,553
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | Current |  |
Financing receivable recorded investment |  |
Loans | 2,808,236 | 2,791,665
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 2,720 | 1,888
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 1,260 | 1,424
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 1,401 | 371
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 59 | 93
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily |  |
Financing receivable recorded investment |  |
Loans | 323,606 | 380,839
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | Current |  |
Financing receivable recorded investment |  |
Loans | 298,542 | 380,140
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 25,064 | 699
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 25,064 | 369
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans |  | 330
Obligations of states and political subdivisions |  |
Financing receivable recorded investment |  |
Loans | 2,219,432 | 2,091,622
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development |  |
Financing receivable recorded investment |  |
Loans | 2,219,432 | 2,091,622
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | Current |  |
Financing receivable recorded investment |  |
Loans | 2,198,636 | 2,077,917
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 20,796 | 13,705
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 1,317 | 3,460
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 9,230 |
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 10,249 | 10,245
Real estate - mortgage |  |
Financing receivable recorded investment |  |
Loans | 954,469 | 938,901
Real estate - mortgage | Domestic | Residential: first lien |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 2,296 | 2,437
Loans | 486,788 | 478,032
Real estate - mortgage | Domestic | Residential: first lien | Current |  |
Financing receivable recorded investment |  |
Loans | 479,679 | 472,236
Real estate - mortgage | Domestic | Residential: first lien | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 7,109 | 5,796
Real estate - mortgage | Domestic | Residential: first lien | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 3,470 | 1,812
Real estate - mortgage | Domestic | Residential: first lien | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 1,253 | 1,439
Real estate - mortgage | Domestic | Residential: first lien | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 2,386 | 2,545
Real estate - mortgage | Domestic | Residential Junior Lien |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 1,685 | 1,701
Loans | 467,681 | 460,869
Real estate - mortgage | Domestic | Residential Junior Lien | Current |  |
Financing receivable recorded investment |  |
Loans | 463,653 | 457,282
Real estate - mortgage | Domestic | Residential Junior Lien | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 4,028 | 3,587
Real estate - mortgage | Domestic | Residential Junior Lien | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 1,868 | 1,273
Real estate - mortgage | Domestic | Residential Junior Lien | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 475 | 613
Real estate - mortgage | Domestic | Residential Junior Lien | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 1,685 | 1,701
Consumer |  |
Financing receivable recorded investment |  |
Loans | 46,358 | 45,121
Consumer | Domestic |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 14 | 27
Loans | 46,358 | 45,121
Consumer | Domestic | Current |  |
Financing receivable recorded investment |  |
Loans | 46,016 | 44,820
Consumer | Domestic | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 342 | 301
Consumer | Domestic | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 304 | 263
Consumer | Domestic | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 24 | 11
Consumer | Domestic | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 14 | 27
Foreign. |  |
Financing receivable recorded investment |  |
Loans | 176,453 | 180,695
Foreign. | Foreign |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 252 | 889
Loans | 176,453 | 180,695
Foreign. | Foreign | Current |  |
Financing receivable recorded investment |  |
Loans | 175,148 | 177,074
Foreign. | Foreign | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 1,305 | 3,621
Foreign. | Foreign | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 530 | 1,884
Foreign. | Foreign | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 523 | 848
Foreign. | Foreign | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | $ 252 | $ 889

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