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Loans, Past Due (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Recorded investment of past due [Abstract] |  |
Total past due | $ 2,239,659 | $ 2,248,836
90 days or greater past due and accruing | 820 | 516
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 14,693 | 12,187
Nonaccrual With a related allowance | 3,614 | 4,398
Nonaccrual Without a related allowance | 11,079 | 7,789
90 days or greater past due and accruing | 820 | 516
Total non-performing loans | 15,513 | 12,703
Financing receivables on accrual status [Abstract] |  |
Total financing receivables and still accruing | $ 2,224,966 | 2,236,649
Minimum [Member] |  |
Financing receivables on nonaccrual status [Abstract] |  |
Period of past due after which loans considered as non accrual | 90 days |
Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | $ 2,220,134 | 2,229,685
Financing receivables on nonaccrual status [Abstract] |  |
Current and non-accrual | 2,299 | 4,008
Financing receivable nonaccrual status | 2,220,134 | 2,229,685
Financing receivables on accrual status [Abstract] |  |
Current and still accruing | 2,217,835 | 2,225,677
Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 19,525 | 19,151
Financing receivables on nonaccrual status [Abstract] |  |
Total past due and non-accrual | 12,394 | 8,179
Financing receivables on accrual status [Abstract] |  |
Total past due and still accruing | 7,131 | 10,972
30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 5,238 | 9,251
Financing receivables on nonaccrual status [Abstract] |  |
Total past due and non-accrual | 296 | 199
Financing receivables on accrual status [Abstract] |  |
Total past due and still accruing | 4,942 | 9,052
60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,765 | 2,070
Financing receivables on nonaccrual status [Abstract] |  |
Total past due and non-accrual | 396 | 666
Financing receivables on accrual status [Abstract] |  |
Total past due and still accruing | 1,369 | 1,404
90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 12,522 | 7,830
Financing receivables on nonaccrual status [Abstract] |  |
Total past due and non-accrual | 11,702 | 7,314
Financing receivables on accrual status [Abstract] |  |
Total past due and still accruing | 820 | 516
Home Equity [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 49,190 | 49,791
Commercial [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,115,900 | 1,092,887
Construction [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 184,506 | 195,826
Real Estate Loans [Member] | Mortgages [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 308,589 | 310,199
90 days or greater past due and accruing | 565 | 0
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 2,891 | 2,961
Nonaccrual With a related allowance | 311 | 315
Nonaccrual Without a related allowance | 2,580 | 2,646
90 days or greater past due and accruing | 565 | 0
Total non-performing loans | 3,456 | 2,961
Real Estate Loans [Member] | Mortgages [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 304,256 | 304,917
Real Estate Loans [Member] | Mortgages [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 4,333 | 5,282
Real Estate Loans [Member] | Mortgages [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,412 | 2,682
Real Estate Loans [Member] | Mortgages [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 576 | 360
Real Estate Loans [Member] | Mortgages [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 2,345 | 2,240
Real Estate Loans [Member] | Home Equity [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 49,190 | 49,791
90 days or greater past due and accruing | 0 | 18
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 119 | 121
Nonaccrual With a related allowance | 0 | 0
Nonaccrual Without a related allowance | 119 | 121
90 days or greater past due and accruing | 0 | 18
Total non-performing loans | 119 | 139
Real Estate Loans [Member] | Home Equity [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 48,891 | 49,508
Real Estate Loans [Member] | Home Equity [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 299 | 283
Real Estate Loans [Member] | Home Equity [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 180 | 145
Real Estate Loans [Member] | Home Equity [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 67
Real Estate Loans [Member] | Home Equity [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 119 | 71
Real Estate Loans [Member] | Commercial [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,115,900 | 1,092,887
90 days or greater past due and accruing | 243 | 404
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 2,485 | 1,135
Nonaccrual With a related allowance | 1,265 | 256
Nonaccrual Without a related allowance | 1,220 | 879
90 days or greater past due and accruing | 243 | 404
Total non-performing loans | 2,728 | 1,539
Real Estate Loans [Member] | Commercial [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,112,357 | 1,090,111
Real Estate Loans [Member] | Commercial [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 3,543 | 2,776
Real Estate Loans [Member] | Commercial [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 889 | 1,151
Real Estate Loans [Member] | Commercial [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 185 | 245
Real Estate Loans [Member] | Commercial [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 2,469 | 1,380
Real Estate Loans [Member] | Agricultural [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 318,413 | 314,802
90 days or greater past due and accruing | 0 | 75
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 2,608 | 2,670
Nonaccrual With a related allowance | 181 | 181
Nonaccrual Without a related allowance | 2,427 | 2,489
90 days or greater past due and accruing | 0 | 75
Total non-performing loans | 2,608 | 2,745
Real Estate Loans [Member] | Agricultural [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 316,872 | 313,290
Real Estate Loans [Member] | Agricultural [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,541 | 1,512
Real Estate Loans [Member] | Agricultural [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 175 | 72
Real Estate Loans [Member] | Agricultural [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 0
Real Estate Loans [Member] | Agricultural [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,366 | 1,440
Real Estate Loans [Member] | Construction [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 184,506 | 195,826
90 days or greater past due and accruing | 0 | 0
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 4,283 | 2,357
Nonaccrual With a related allowance | 0 | 2,357
Nonaccrual Without a related allowance | 4,283 | 0
90 days or greater past due and accruing | 0 | 0
Total non-performing loans | 4,283 | 2,357
Real Estate Loans [Member] | Construction [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 180,223 | 188,674
Real Estate Loans [Member] | Construction [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 4,283 | 7,152
Real Estate Loans [Member] | Construction [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 4,407
Real Estate Loans [Member] | Construction [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 388
Real Estate Loans [Member] | Construction [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 4,283 | 2,357
Consumer [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 53,101 | 61,316
90 days or greater past due and accruing | 12 | 13
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 849 | 701
Nonaccrual With a related allowance | 849 | 701
Nonaccrual Without a related allowance | 0 | 0
90 days or greater past due and accruing | 12 | 13
Total non-performing loans | 861 | 714
Consumer [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 51,906 | 60,995
Consumer [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 1,195 | 321
Consumer [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 209 | 16
Consumer [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 125 | 282
Consumer [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 861 | 23
Other Commercial Loans [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 129,438 | 136,168
90 days or greater past due and accruing | 0 | 6
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 1,028 | 1,750
Nonaccrual With a related allowance | 1,008 | 588
Nonaccrual Without a related allowance | 20 | 1,162
90 days or greater past due and accruing | 0 | 6
Total non-performing loans | 1,028 | 1,756
Other Commercial Loans [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 125,327 | 134,813
Other Commercial Loans [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 4,111 | 1,355
Other Commercial Loans [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 2,344 | 670
Other Commercial Loans [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 879 | 366
Other Commercial Loans [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 888 | 319
Other Agricultural Loans [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 24,345 | 30,673
90 days or greater past due and accruing | 0 | 0
Financing receivables on nonaccrual status [Abstract] |  |
Financing receivable nonaccrual status | 430 | 492
Nonaccrual With a related allowance | 0 | 0
Nonaccrual Without a related allowance | 430 | 492
90 days or greater past due and accruing | 0 | 0
Total non-performing loans | 430 | 492
Other Agricultural Loans [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 24,125 | 30,203
Other Agricultural Loans [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 220 | 470
Other Agricultural Loans [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 29 | 108
Other Agricultural Loans [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 362
Other Agricultural Loans [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 191 | 0
State and Political Subdivision Loans [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 56,177 | 57,174
90 days or greater past due and accruing | 0 | 0
Financing receivables on nonaccrual status [Abstract] |  |
Nonaccrual With a related allowance | 0 | 0
Nonaccrual Without a related allowance | 0 | 0
90 days or greater past due and accruing | 0 | 0
Total non-performing loans | 0 | 0
State and Political Subdivision Loans [Member] | Current [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 56,177 | 57,174
State and Political Subdivision Loans [Member] | Total Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 0
State and Political Subdivision Loans [Member] | 30 to 59 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 0
State and Political Subdivision Loans [Member] | 60 to 89 Days Past Due [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | 0 | 0
State and Political Subdivision Loans [Member] | 90 Days Or Greater [Member] |  |
Recorded investment of past due [Abstract] |  |
Total past due | $ 0 | $ 0

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