Securities - Narrative (Details) $ in Millions |
Jun. 30, 2026
USD ($)
security
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Dec. 31, 2025
USD ($)
security
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| Debt and Equity Securities, FV-NI [Line Items] | ||
| Private mortgage-backed security fair value | $ 0.7 | $ 0.7 |
| Accrued interest on available for sale debt securities | 5.0 | 5.2 |
| Accrued interest on held to maturity debt securities | $ 4.2 | $ 4.2 |
| Number of securities | security | 577 | 573 |
| Number of securities held in an unrealized loss position | security | 517 | 491 |
| FHLB stock and FRB stock, cost | $ 42.0 | $ 41.6 |
| FHLB, cost | 8.9 | 8.5 |
| FRB stock | 33.1 | 33.1 |
| Collateral For Public Deposits | ||
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Investment securities, pledged as collateral for public deposits | 885.4 | 876.8 |
| Collateral For FRB Borrowings | ||
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Investment securities, pledged as collateral for public deposits | $ 616.3 | $ 622.1 |
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- Definition Debt Securities, Available-For-Sale And Held-To-Maturity, Number Of Positions No definition available.
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- Definition Debt Securities, Available-For-Sale And Held-To-Maturity, Unrealized Loss Position, Number Of Positions No definition available.
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- Definition Private mortgage-backed security fair value. No definition available.
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- Definition Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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