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Borrowing Arrangements - Narrative (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Borrowing Arrangements |  |
Debt instrument, interest rate, stated percentage | 6.18% |
Debt securities amortized cost | $ 515,813 | $ 536,334
Available-for-sale debt securities | 473,075 | 477,113
Federal Home Loan Bank Advances |  |
Borrowing Arrangements |  |
Borrowings |  | 45,000
Overnight Borrowings |  |
Borrowing Arrangements |  |
Borrowings | $ 20,000 |
Debt instrument, interest rate, stated percentage | 4.49% |
Line of Credit | Unsecured Credit Lines |  |
Borrowing Arrangements |  |
Total credit limit | $ 110,000 | 110,000
Line of Credit | Federal Reserve Bank | Federal Reserve Bank Advances |  |
Borrowing Arrangements |  |
Total credit limit | 3,501 | 3,669
Collateral pledged | 4,044 | 4,406
Fair value of collateral | 3,679 | 3,828
Federal Home Loan Bank Advances |  |
Borrowing Arrangements |  |
Borrowings |  | $ 90,000
Debt, Weighted Average Interest Rate |  | 0.86%
Remaining borrowing capacity | 737,721 |
Federal Home Loan Bank Advances | Asset Pledged as Collateral |  |
Borrowing Arrangements |  |
Debt securities amortized cost | 156,316 | $ 153,139
Available-for-sale debt securities | 197,654 | $ 193,424
Federal Home Loan Bank Advances | Asset Pledged as Collateral | Financing Receivable |  |
Borrowing Arrangements |  |
Financial Instruments, Owned, at Fair Value | $ 1,197,335 |

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