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Securities & Allowance for Securities Credit Losses - Schedule of Debt Securities, Held-to-Maturity, Credit Quality Indicator (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | $ 283,913 | $ 300,653
U.S. government and federal agencies |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 115,454 | 122,452
Mortgage Backed Securities |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 1,155 | 1,168
Corporate bonds |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 50,815 | 57,470
State and municipal securities |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 116,489 | 119,563
AAA / AA / A |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 251,045 | 261,229
AAA / AA / A | U.S. government and federal agencies |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 115,454 | 122,452
AAA / AA / A | Mortgage Backed Securities |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 1,155 | 1,168
AAA / AA / A | Corporate bonds |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 17,947 | 18,046
AAA / AA / A | State and municipal securities |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 116,489 | 119,563
BBB / BB / B |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 32,868 | 39,424
BBB / BB / B | U.S. government and federal agencies |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 0 | 0
BBB / BB / B | Mortgage Backed Securities |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 0 | 0
BBB / BB / B | Corporate bonds |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | 32,868 | 39,424
BBB / BB / B | State and municipal securities |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Total | $ 0 | $ 0

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- Definition Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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