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Fair Value Measurements and Disclosure - Summary of Financial Assets Measured at Fair Value on NonRecurring Basis (Detail) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | $ 1,470,144 | $ 1,347,137
Fair Value, Nonrecurring [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 4,485 | 30
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 4,485 | 30
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure |  | 30
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure |  |
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure |  |
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure |  | $ 30
Collateral dependent loan [Member] | Fair Value, Nonrecurring [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 4,485 |
Collateral dependent loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 0 |
Collateral dependent loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 0 |
Collateral dependent loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Assets Measured On Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | $ 4,485 |

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- Definition Fair value assets measured on nonrecurring basis line item. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Publisher FASB -URI https://asc.fasb.org//310-10/tableOfContent + Details
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