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Fair Value Measurements and Disclosures - Summary of Quantitative Information Using Level 3 Fair Value Measurements (Detail) - Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,838,173,000	$ 1,798,302,000
Measurement Input Discount Rate Adjustment [Member] | Collateral dependent loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable Measurement Input		0.12
Measurement Input Discount Rate Adjustment [Member] | Other Real Estate Owned [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable Measurement Input		0
Measurement Input Discount Rate Adjustment [Member] | Valuation Technique Collateral [Member] | Weighted Average [Member] | Collateral dependent loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure		$ 16,223,000
Loans Receivable Measurement Input		0.12
Measurement Input Discount Rate Adjustment [Member] | Valuation Technique Collateral [Member] | Weighted Average [Member] | Other Real Estate Owned [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure		$ 295
Loans Receivable Measurement Input		0

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- Definition

Loans receivable measurement input.

+ References

No definition available.

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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/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 103
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-103

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Section 50
-Paragraph 2
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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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://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-10

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