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Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($) | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value | $ 21,730,000 | $ 23,660,000
Principal Balance/Amortized Cost | 21,411,000 | 23,290,000
Difference | 319,000 | 370,000
Nonaccrual mortgage loans held for sale recorded at fair value | 0 | 0
Loans held for sale |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value | 14,975,000 | 16,852,000
Principal Balance/Amortized Cost | 14,596,000 | 16,475,000
Difference | 379,000 | 377,000
Securities carried at fair value through income |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value | 6,755,000 | 6,808,000
Principal Balance/Amortized Cost | 6,815,000 | 6,815,000
Difference | $ (60,000) | $ (7,000)

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- Definition This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-28 + Details
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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/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-30 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-31 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-32 + Details
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