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Derivative Financial Instruments - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Derivatives |  |  |  |  |
Accumulated derivative credit valuation adjustment | $ 38,000 |  | $ 38,000 |  | $ 117,000
Interest Rate Swap Agreements on Loans with Third-party Counter Parties |  |  |  |  |
Derivatives |  |  |  |  |
Interest rate swaps - assets, fair value | 39,800,000 |  | 39,800,000 |  |
Interest rate swaps - liabilities, fair value | 11,400,000 |  | 11,400,000 |  |
Interest Rate Swap Related to AFS Securities | Designated as Hedging Instrument |  |  |  |  |
Derivatives |  |  |  |  |
Unrealized gains on interest rate swaps | 246,000 | $ 421,000 | 24,000 | $ 353,000 |
Gain recognized in income on ineffective portion of hedges |  |  | 0 | 0 |
Interest Rate Swap Related to FHLB Borrowings | Designated as Hedging Instrument |  |  |  |  |
Derivatives |  |  |  |  |
Unrealized gains on interest rate swaps | $ 11,600,000 | $ 5,300,000 | 6,500,000 | 7,500,000 |
Gain recognized in income on ineffective portion of hedges |  |  | $ 0 | $ 0 |

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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-7 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (c)(2) -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D + Details
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