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Loans - Risk Category of Loans by Class (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]      
Total $ 5,654,944   $ 4,133,267
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Total 625 $ 1,061  
Commercial and Industrial Loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 36,413   118,292
Year two 128,680   88,748
Year three 90,183   94,374
Year four 104,845   68,523
Year five 75,240   19,250
Prior 74,883   54,844
Revolving Loans Amortized Cost Basis 222,084   147,754
Total 732,328   591,785
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Year one 0   0
Year two 99   4
Year three 0   96
Year four 27   64
Year five 0   0
Prior 0   13
Revolving Loans Amortized Cost Basis 0   46
Total 126 102 223
Commercial and Industrial Loans | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 36,196   118,037
Year two 127,594   86,412
Year three 84,533   93,406
Year four 103,045   64,298
Year five 69,351   17,140
Prior 60,733   49,181
Revolving Loans Amortized Cost Basis 209,007   143,096
Total 690,459   571,570
Commercial and Industrial Loans | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 217   147
Year two 620   1,709
Year three 1,718   787
Year four 536   1,061
Year five 1,179   1,202
Prior 3,298   2,044
Revolving Loans Amortized Cost Basis 3,473   1,023
Total 11,041   7,973
Commercial and Industrial Loans | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   108
Year two 466   627
Year three 3,932   181
Year four 1,264   3,164
Year five 4,710   908
Prior 10,852   3,619
Revolving Loans Amortized Cost Basis 9,604   3,635
Total 30,828   12,242
Commercial and Industrial Loans | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0   0
Commercial Real Estate Loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 100,996   327,921
Year two 422,734   329,595
Year three 443,378   412,441
Year four 581,966   405,248
Year five 506,254   189,824
Prior 946,864   520,372
Revolving Loans Amortized Cost Basis 52,882   39,471
Total 3,055,074   2,224,872
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   308
Revolving Loans Amortized Cost Basis 0   0
Total 0 308 308
Commercial Real Estate Loans | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 100,815   327,488
Year two 421,013   315,981
Year three 429,313   410,135
Year four 569,166   394,698
Year five 484,724   187,849
Prior 887,938   502,263
Revolving Loans Amortized Cost Basis 52,412   39,271
Total 2,945,381   2,177,685
Commercial Real Estate Loans | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 95   433
Year two 1,721   13,433
Year three 13,363   1,740
Year four 9,729   5,395
Year five 14,726   1,975
Prior 26,933   12,349
Revolving Loans Amortized Cost Basis 62   200
Total 66,629   35,525
Commercial Real Estate Loans | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 86   0
Year two 0   181
Year three 702   566
Year four 3,071   5,155
Year five 6,804   0
Prior 31,993   5,760
Revolving Loans Amortized Cost Basis 408   0
Total 43,064   11,662
Commercial Real Estate Loans | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0   0
Agricultural Loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 13,885   47,901
Year two 43,806   36,805
Year three 40,245   48,251
Year four 57,442   34,488
Year five 37,899   40,801
Prior 164,825   118,475
Revolving Loans Amortized Cost Basis 97,576   104,316
Total 455,678   431,037
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   8
Revolving Loans Amortized Cost Basis 0   0
Total 0 0 8
Agricultural Loans | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 13,885   47,179
Year two 42,579   35,379
Year three 38,669   48,105
Year four 52,128   33,666
Year five 36,885   35,726
Prior 145,867   103,702
Revolving Loans Amortized Cost Basis 93,837   102,251
Total 423,850   406,008
Agricultural Loans | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   547
Year two 806   1,426
Year three 1,576   146
Year four 509   822
Year five 652   5,075
Prior 15,318   10,676
Revolving Loans Amortized Cost Basis 3,576   2,065
Total 22,437   20,757
Agricultural Loans | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   175
Year two 421   0
Year three 0   0
Year four 4,805   0
Year five 362   0
Prior 3,640   4,097
Revolving Loans Amortized Cost Basis 163   0
Total 9,391   4,272
Agricultural Loans | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0   0
Leases      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 7,408   32,214
Year two 30,083   26,392
Year three 24,567   8,272
Year four 7,279   6,578
Year five 5,183   2,128
Prior 5,225   3,669
Revolving Loans Amortized Cost Basis 0   0
Total 79,745   79,253
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0 $ 0 0
Leases | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 7,408   32,214
Year two 30,083   26,392
Year three 24,567   8,272
Year four 7,279   6,578
Year five 5,183   2,128
Prior 5,225   3,669
Revolving Loans Amortized Cost Basis 0   0
Total 79,745   79,253
Leases | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0   0
Leases | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0   0
Leases | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total $ 0   $ 0