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Investment Securities - Realized Gains and Losses From Sale of Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Realized Investment Gains (Losses) [Abstract] |  |  |  |
Gross gains | $ 191 | $ 11 | $ 193 | $ 88
Gross losses | $ (112) | $ 0 | $ (112) | $ 0

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