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Goodwill and Intangible Assets - Intangible Assets Mortgage Servicing Rights (Details) - Mortgage Servicing Rights - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Finite Lived Intangible Assets [Line Items] |  |  |
Beginning balance | $ 5,629 | $ 6,859 | $ 6,859
Adjustment to valuation reserve | 1 | (77) | 7
Mortgage servicing rights amortized | (797) | (939) | (1,226)
Interest only strip | (10) | (8) | (11)
Ending balance | 4,823 | 5,835 | 5,629
Fair value of portfolio | $ 5,863 | $ 6,470 | $ 6,716

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- Definition The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481229/860-50-50-4 + Details
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