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Allowance for Credit Losses - Schedule of Non Accrual Loans (Detail) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | $ 11,206 | $ 25,704
Non accrual, no allowance including guaranteed loans | 11,316 | 26,417
Non accrual including guaranteed loans | 17,466 | 30,350
Total non accrual | 17,319 | 29,575
Past due 90 days or more and still accruing | 5 | 0
Loans Insured or Guaranteed by US Government Authorities |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 110 | 713
Total non accrual | 147 | 775
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 4,680 | 17,571
Total non accrual | 4,637 | 20,412
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 | 6,054 | 6,927
Total non accrual | 6,681 | 7,467
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 | 462 | 1,904
Total non accrual | 655 | 2,416
Past due 90 days or more and still accruing | 5 | 0
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Non accrual with no allowance for credit losses | 120 | 15
Total non accrual | 120 | 55
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 | 0
Total non accrual | 5,373 | 0
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 | 2,032 | 7,899
Total non accrual | 2,032 | 7,899
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 | 1,703 | 4,763
Total non accrual | 1,778 | 5,036
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 | 132 | 4,457
Total non accrual | 132 | 4,457
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 | 813 | 452
Total non accrual | 695 | 3,020
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 | 3,103 | 3,594
Total non accrual | 3,255 | 3,595
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 | 2,945 | 3,285
Total non accrual | 3,365 | 3,801
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 | 6 | 48
Total non accrual | 61 | 71
Past due 90 days or more and still accruing | $ 0 | $ 0

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