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v3.25.2

Servicing - Additional Information (Detail) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) Loan Strata | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Customer Securities for which Entity has Right to Sell or Repledge (Including Securities Sold or Repledged) [Line Items] |  |  |
Valuation allowance | $ 87 |  | $ 97
1-4 Family Real Estate Loans [Member] |  |  |
Customer Securities for which Entity has Right to Sell or Repledge (Including Securities Sold or Repledged) [Line Items] |  |  |
Loans serviced for others unpaid principal amount | 362,800 | $ 363,400 | 364,300
Capitalized service right assets included in other assets | 3,500 | 3,500 | 3,500
Fair value of the capitalized servicing rights | $ 4,700 | $ 5,300 | $ 4,800
Prepayment rate | 7.70% | 6.10% | 8.10%
Number of strata which included loan | Strata | 2 |  |
Number of loans | Loan | 3,629 |  |
Discount yield | 5.52% |  |
Valuation allowance | $ 3 |  | $ 2
Agricultural Real Estate Loans [Member] |  |  |
Customer Securities for which Entity has Right to Sell or Repledge (Including Securities Sold or Repledged) [Line Items] |  |  |
Loans serviced for others unpaid principal amount | 146,800 | $ 138,500 | 141,900
Capitalized service right assets included in other assets | 2,300 | 2,000 | 2,100
Fair value of the capitalized servicing rights | $ 2,300 | $ 2,600 | $ 2,700
Prepayment rate | 0.447% | 0.215% | 0.184%
Number of strata which included loan | Strata | 12 |  |
Number of loans | Loan | 643 |  |
Discount yield | 8.37% |  |
Valuation allowance | $ 84 |  | $ 95
Two 1-4 Family Real Estate Strata [Member] |  |  |
Customer Securities for which Entity has Right to Sell or Repledge (Including Securities Sold or Repledged) [Line Items] |  |  |
Number of loans | Loan | 77 |  |
Eleven Agricultural Real Estate Strata [Member] |  |  |
Customer Securities for which Entity has Right to Sell or Repledge (Including Securities Sold or Repledged) [Line Items] |  |  |
Number of loans | Loan | 147 |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A + Details
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