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Allowance for Credit Losses (Aging By Loan Class) (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | $ 4,680 | $ 6,132
Loans | 7,896,899 | 7,430,603
Current |  |
Financing receivable recorded investment |  |
Loans | 7,829,476 | 7,412,585
Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 67,423 | 18,018
30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 18,762 | 8,552
60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 2,622 | 2,251
90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 46,039 | 7,215
Commercial, financial and agricultural |  |
Financing receivable recorded investment |  |
Loans | 4,637,170 | 4,373,373
Commercial, financial and agricultural | Domestic | Commercial. |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 89 | 59
Loans | 1,556,827 | 1,498,754
Commercial, financial and agricultural | Domestic | Commercial. | Current |  |
Financing receivable recorded investment |  |
Loans | 1,522,660 | 1,495,750
Commercial, financial and agricultural | Domestic | Commercial. | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 34,167 | 3,004
Commercial, financial and agricultural | Domestic | Commercial. | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 2,529 | 1,732
Commercial, financial and agricultural | Domestic | Commercial. | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 354 | 258
Commercial, financial and agricultural | Domestic | Commercial. | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 31,284 | 1,014
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial |  |
Financing receivable recorded investment |  |
Loans | 2,746,673 | 2,568,118
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | Current |  |
Financing receivable recorded investment |  |
Loans | 2,745,206 | 2,566,257
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 1,467 | 1,861
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 1,329 | 1,744
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 138 | 117
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily |  |
Financing receivable recorded investment |  |
Loans | 333,670 | 306,501
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | Current |  |
Financing receivable recorded investment |  |
Loans | 333,235 | 306,501
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 435 |
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 435 |
Obligations of states and political subdivisions |  |
Financing receivable recorded investment |  |
Loans | 2,126,302 | 1,989,669
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development |  |
Financing receivable recorded investment |  |
Loans | 2,126,302 | 1,989,669
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | Current |  |
Financing receivable recorded investment |  |
Loans | 2,106,809 | 1,988,539
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 19,493 | 1,130
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 9,292 | 1,130
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 200 |
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 10,001 |
Real estate - mortgage |  |
Financing receivable recorded investment |  |
Loans | 907,615 | 865,994
Real estate - mortgage | Domestic | Residential: first lien |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 2,160 | 4,061
Loans | 456,397 | 425,724
Real estate - mortgage | Domestic | Residential: first lien | Current |  |
Financing receivable recorded investment |  |
Loans | 450,099 | 418,444
Real estate - mortgage | Domestic | Residential: first lien | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 6,298 | 7,280
Real estate - mortgage | Domestic | Residential: first lien | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 2,764 | 2,023
Real estate - mortgage | Domestic | Residential: first lien | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 1,211 | 1,068
Real estate - mortgage | Domestic | Residential: first lien | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 2,323 | 4,189
Real estate - mortgage | Domestic | Residential Junior Lien |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 1,805 | 1,717
Loans | 451,218 | 440,270
Real estate - mortgage | Domestic | Residential Junior Lien | Current |  |
Financing receivable recorded investment |  |
Loans | 447,435 | 436,857
Real estate - mortgage | Domestic | Residential Junior Lien | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 3,783 | 3,413
Real estate - mortgage | Domestic | Residential Junior Lien | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 1,330 | 925
Real estate - mortgage | Domestic | Residential Junior Lien | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 648 | 771
Real estate - mortgage | Domestic | Residential Junior Lien | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 1,805 | 1,717
Consumer |  |
Financing receivable recorded investment |  |
Loans | 44,767 | 41,592
Consumer | Domestic |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 80 | 7
Loans | 44,767 | 41,592
Consumer | Domestic | Current |  |
Financing receivable recorded investment |  |
Loans | 44,274 | 41,290
Consumer | Domestic | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 493 | 302
Consumer | Domestic | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 354 | 281
Consumer | Domestic | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 59 | 14
Consumer | Domestic | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | 80 | 7
Foreign. |  |
Financing receivable recorded investment |  |
Loans | 181,045 | 159,975
Foreign. | Foreign |  |
Financing receivable recorded investment |  |
Past due 90 days or Greater and Still Accruing | 546 | 288
Loans | 181,045 | 159,975
Foreign. | Foreign | Current |  |
Financing receivable recorded investment |  |
Loans | 179,758 | 158,947
Foreign. | Foreign | Total Past Due |  |
Financing receivable recorded investment |  |
Loans | 1,287 | 1,028
Foreign. | Foreign | 30 to 59 Days |  |
Financing receivable recorded investment |  |
Loans | 729 | 717
Foreign. | Foreign | 60 to 89 Days |  |
Financing receivable recorded investment |  |
Loans | 12 | 23
Foreign. | Foreign | 90 Days or Greater |  |
Financing receivable recorded investment |  |
Loans | $ 546 | $ 288

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