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Allowance for Credit Losses - Schedule of Non Accrual Loans (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | $ 18,822 | $ 18,125
Non accrual, no allowance including guaranteed loans | 19,588 | 18,230
Non accrual including guaranteed loans | 31,881 | 21,321
Total non accrual | 31,003 | 21,096
Past due 90 days or more and still accruing | 10 | 0
Loans Insured or Guaranteed by US Government Authorities |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 766 | 105
Total non accrual | 878 | 225
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 12,014 | 8,574
Total non accrual | 20,502 | 8,574
Past due 90 days or more and still accruing | 0 | 0
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 6,128 | 6,662
Total non accrual | 6,487 | 7,459
Past due 90 days or more and still accruing | 0 | 0
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 1,379 | 1,224
Total non accrual | 2,503 | 3,518
Past due 90 days or more and still accruing | 10 | 0
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 67 | 491
Total non accrual | 67 | 491
Past due 90 days or more and still accruing | 0 | 0
Agriculture production |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 0 | 1,279
Total non accrual | 2,322 | 1,279
Past due 90 days or more and still accruing | 0 | 0
Leases |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 0 | 0
Total non accrual | 0 | 0
Past due 90 days or more and still accruing | 0 | 0
CRE non-owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 2,024 | 1,739
Total non accrual | 2,024 | 1,739
Past due 90 days or more and still accruing | 0 | 0
CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 3,994 | 4,938
Total non accrual | 3,994 | 4,938
Past due 90 days or more and still accruing | 0 | 0
Multifamily | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 0 | 125
Total non accrual | 0 | 125
Past due 90 days or more and still accruing | 0 | 0
Farmland | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 5,996 | 1,772
Total non accrual | 14,484 | 1,772
Past due 90 days or more and still accruing | 0 | 0
SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 2,808 | 4,117
Total non accrual | 2,811 | 4,220
Past due 90 days or more and still accruing | 0 | 0
SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 3,281 | 2,498
Total non accrual | 3,571 | 3,155
Past due 90 days or more and still accruing | 0 | 0
Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 39 | 47
Total non accrual | 105 | 84
Past due 90 days or more and still accruing | $ 0 | $ 0

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