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Fair Value Measurements - Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - Equity Securities [Member] - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Balance $ 2,756 $ 2,542
Total realized and unrealized gains included in noninterest income 71 67
Net purchases, sales, calls, and maturities 70 110
Net transfers into Level 3 0 0
Balance 2,897 2,719
Amount of total losses for the period included in earning attributable to the change in unrealized gains (losses)relating to assets and liabilities still held at March 31, $ 36 $ 0