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Derivative Financial Instruments - Interest Rate Swaps Designated as Cash Flow Hedges (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Derivative [Line Items] |  |  |  |  |
Pre-tax changes in fair value included in AOCI | $ 118 | $ 3,388 | $ (165) | $ 10,948 |
Interest Rate Swap |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount | $ 105,000 |  | $ 105,000 |  | $ 125,000
Weighted average pay rates | 2.22% |  | 2.22% |  | 2.26%
Weighted average receive rates | 5.19% |  | 5.19% |  | 4.44%
Weighted average maturity |  |  | 2 years 2 months 12 days |  | 2 years 7 months 6 days
Pre-tax changes in fair value included in AOCI |  |  | $ 5,547 |  | $ 5,727

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- Definition 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. + References No definition available. + Details
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