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Investments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) Security	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) Security	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Investments [Abstract]
Number of securities owned with fair value less than cost (in Security) | Security	272		272
Allowance for credit losses	$ 0		$ 0		$ 0
Accrued interest receivable on available-for-sale debt securities	$ 2,183		$ 2,183		$ 2,135
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable		Accrued interest receivable		Accrued interest receivable
Contractual payment of past due			90 days
Proceeds from sale of securities available-for-sale	$ 0	$ 0	$ 0	$ 0
Public Funds, Other Deposit and Borrowings [Member] | Asset Pledged as Collateral [Member]
Investments [Abstract]
Investment securities pledged as collateral	$ 378,600		$ 378,600		$ 340,400

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- Definition

Number of days loans are past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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).

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Indicates line item in statement of financial position that includes accrued interest, after allowance for credit loss, on 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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Amount of allowance for credit loss on 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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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

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Amount of cash inflow from sale 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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