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Investment Securities - Allowance for Credit Losses HTM (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | $ 3,214 | $ 1,388 |
Provision for credit loss expense | 0 | 1,826 | $ 0
Net (decrease) increase in allowance on previously impaired securities | 0 | 0 |
Ending balance | 3,214 | 3,214 | 1,388
State and political subdivisions |  |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 2,006 | 110 |
Provision for credit loss expense | 0 | 824 |
Net (decrease) increase in allowance on previously impaired securities | (1,810) | 1,072 |
Ending balance | 196 | 2,006 | 110
Other securities |  |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 1,208 | 1,278 |
Provision for credit loss expense | 0 | 1,002 |
Net (decrease) increase in allowance on previously impaired securities | 1,810 | (1,072) |
Ending balance | $ 3,018 | $ 1,208 | $ 1,278

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- Definition Amount, excluding accrued interest, of allowance for credit loss on 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 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount, excluding accrued interest, of increase (decrease) in allowance for credit loss on 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 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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