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Loans - Loan Balances (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | $ 15,968 | $ 9,253
Allowance for credit losses | (34,196) | (28,511)
Net loans |  | 2,049,931
Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 2,580,066 | 2,546,666
Allowance for credit losses | (34,196) | (28,511)
Net loans | 2,545,870 | 2,518,155
Commercial and Agriculture [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 1,719 | 859
Allowance for credit losses | (3,316) | (3,011)
Net loans |  | 278,595
Commercial and Agriculture [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 271,160 | 278,595
Commercial Real Estate Owner Occupied [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 83 | 110
Allowance for credit losses | (5,733) | (4,565)
Net loans |  | 371,147
Commercial Real Estate Owner Occupied [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 375,825 | 371,147
Commercial Real Estate Non Owner Occupied [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 8,141 | 1,164
Allowance for credit losses | (11,760) | (14,138)
Net loans |  | 1,018,736
Commercial Real Estate Non Owner Occupied [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 1,043,635 | 1,018,736
Residential Real Estate [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 4,084 | 5,097
Allowance for credit losses | (5,934) | (3,145)
Net loans |  | 119,991
Residential Real Estate [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 560,978 | 552,781
Real Estate Construction [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 506 | 219
Allowance for credit losses | (3,920) | (2,293)
Net loans |  | 198,955
Real Estate Construction [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 247,253 | 243,127
Farm Real Estate [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans |  | 7
Allowance for credit losses | (269) | (291)
Net loans |  | 24,708
Farm Real Estate [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 24,040 | 24,708
Lease Financing Receivable [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 37,570 | 36,797
Consumer and Other [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | 206 | 416
Allowance for credit losses | (354) | (98)
Net loans |  | 1,002
Consumer and Other [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Total loans | $ 19,605 | $ 20,775

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