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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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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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