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Allowance for Credit Losses - Summary of Aging Analysis of the Recorded Investment of Past-Due Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | $ 2,355,869 | $ 2,255,104
Loans receivable | 2,331,958 | 2,229,314
Loans, Aging Analysis [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 2,355,869 | 2,255,104
Loans, Aging Analysis [Member] | Agriculture and Farmland [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 61,996 | 67,741
Loans, Aging Analysis [Member] | Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 140,976 | 152,619
Loans, Aging Analysis [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 259,877 | 245,833
Loans, Aging Analysis [Member] | Multifamily [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 231,469 | 211,778
Loans, Aging Analysis [Member] | Owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 502,515 | 477,742
Loans, Aging Analysis [Member] | Non-owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 681,521 | 628,237
Loans, Aging Analysis [Member] | First Liens [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 375,879 | 373,469
Loans, Aging Analysis [Member] | Second Liens and Lines of Credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 81,194 | 76,713
Loans, Aging Analysis [Member] | Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 17,525 | 17,086
Loans, Aging Analysis [Member] | Municipal Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 2,917 | 3,886
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 6,836 | 1,793
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Agriculture and Farmland [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 323 | 23
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 197
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 394 | 41
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Multifamily [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 314
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 875 | 334
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Non-owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 2,629 | 0
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | First Liens [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 2,422 | 686
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Second Liens and Lines of Credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 192 | 191
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 1 | 7
Loans, Aging Analysis [Member] | 30-59 Days Past Due [Member] | Municipal Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 7,704 | 1,097
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Agriculture and Farmland [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 6,065 | 0
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Multifamily [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 311 | 0
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 587 | 660
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Non-owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 23 | 0
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | First Liens [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 684 | 317
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Second Liens and Lines of Credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 34 | 119
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 1
Loans, Aging Analysis [Member] | 60-89 Days Past Due [Member] | Municipal Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 11,368 | 10,966
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Agriculture and Farmland [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 382 | 0
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 9 | 166
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 700 | 90
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Multifamily [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 8,983 | 8,768
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Non-owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 277 | 398
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | First Liens [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 716 | 1,220
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Second Liens and Lines of Credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 301 | 276
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 48
Loans, Aging Analysis [Member] | 90 Days or Greater Past Due [Member] | Municipal Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | Total Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 25,908 | 13,856
Loans, Aging Analysis [Member] | Total Past Due [Member] | Agriculture and Farmland [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 705 | 23
Loans, Aging Analysis [Member] | Total Past Due [Member] | Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 9 | 363
Loans, Aging Analysis [Member] | Total Past Due [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 7,159 | 131
Loans, Aging Analysis [Member] | Total Past Due [Member] | Multifamily [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 311 | 314
Loans, Aging Analysis [Member] | Total Past Due [Member] | Owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 10,445 | 9,762
Loans, Aging Analysis [Member] | Total Past Due [Member] | Non-owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 2,929 | 398
Loans, Aging Analysis [Member] | Total Past Due [Member] | First Liens [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 3,822 | 2,223
Loans, Aging Analysis [Member] | Total Past Due [Member] | Second Liens and Lines of Credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 527 | 586
Loans, Aging Analysis [Member] | Total Past Due [Member] | Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 1 | 56
Loans, Aging Analysis [Member] | Total Past Due [Member] | Municipal Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 0 | 0
Loans, Aging Analysis [Member] | Current [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 2,329,961 | 2,241,248
Loans, Aging Analysis [Member] | Current [Member] | Agriculture and Farmland [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 61,291 | 67,718
Loans, Aging Analysis [Member] | Current [Member] | Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 140,967 | 152,256
Loans, Aging Analysis [Member] | Current [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 252,718 | 245,702
Loans, Aging Analysis [Member] | Current [Member] | Multifamily [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 231,158 | 211,464
Loans, Aging Analysis [Member] | Current [Member] | Owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 492,070 | 467,980
Loans, Aging Analysis [Member] | Current [Member] | Non-owner Occupied [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 678,592 | 627,839
Loans, Aging Analysis [Member] | Current [Member] | First Liens [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 372,057 | 371,246
Loans, Aging Analysis [Member] | Current [Member] | Second Liens and Lines of Credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 80,667 | 76,127
Loans, Aging Analysis [Member] | Current [Member] | Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | 17,524 | 17,030
Loans, Aging Analysis [Member] | Current [Member] | Municipal Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans receivable | $ 2,917 | $ 3,886

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