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Securities - Fair Value of Equity Securities and Related Gross Unrealized Gains (Losses) Recognized in Interest Income (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Debt Securities, Trading, and Equity Securities, FV-NI, Cost [Abstract]    
Amortized Cost $ 7,928 $ 8,982
Gross Unrealized Gains 208 305
Gross Unrealized Losses (874) (721)
Fair Value $ 7,262 $ 8,566