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Derivative Financial Instruments - Interest Swap Derivatives (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Mar. 31, 2021	Jun. 30, 2020	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			$ 904			$ 904		$ 0
Fair Value			81			81		0
Interest expense			45,637	$ 15,105		118,073	$ 35,815
Payments for swap termination payments		$ 46,100
Cash pledged as collateral			9,400			9,400			$ 7,700
Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value hedging adjustment					$ (2,088)	(1,707)
Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			50,000			$ 50,000		$ 50,000
Weighted Average Remaining Maturity (years)						1 year 1 month 6 days		1 year 9 months 18 days
Fair Value			$ 1,717			$ 1,717		$ 2,093
Weighted-Average Rate			2.33%			2.33%		2.33%
Loans | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Weighted Average Remaining Maturity (years)						10 years 7 months 6 days
Securities available-for-sale | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			$ 50,000			$ 50,000		$ 50,000
Weighted Average Remaining Maturity (years)						1 year 1 month 6 days		1 year 9 months 18 days
Fair Value			$ 1,717			$ 1,717		$ 2,093
Weighted-Average Rate			2.33%			2.33%		2.33%
Payments for swap termination payments	$ 1,900
3-month SOFR | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			$ 110,000			$ 110,000		$ 110,000
Weighted Average Remaining Maturity (years)						3 years 3 months 18 days		4 years 1 month 6 days
Fair Value			$ 6,450			$ 6,450		$ 4,787
Derivative, variable interest rate			2.88%			2.88%		2.88%
1-month SOFR | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			$ 20,000			$ 20,000		$ 60,000
Weighted Average Remaining Maturity (years)						2 months 12 days		7 months 6 days
Fair Value			$ 85			$ 85		$ 735
Derivative, variable interest rate			2.94%			2.94%		2.88%
Fed Funds Effective | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			$ 40,000			$ 40,000		$ 40,000
Weighted Average Remaining Maturity (years)						8 months 12 days		1 year 4 months 24 days
Fair Value			$ 682			$ 682		$ 1,030
Derivative, variable interest rate			2.78%			2.78%		2.78%

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Cash Pledged As Collateral

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Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Nominal or face amount used to calculate payment on derivative.

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Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

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The increase (decrease) during the period in the carrying value of derivative instruments reported as assets that are due to be disposed of within one year (or the normal operating cycle, if longer).

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Amount of the cost of borrowed funds accounted for as interest expense.

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