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Investment Securities - Cost and Equity Method Investments (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Investment [Line Items] |  |  |
Federal home loan bank stock | $ 11,197,000 | $ 13,413,000 |
Federal reserve bank stock | 14,653,000 | 14,653,000 |
Equity Securities, FV-NI | 1,859,000 | 2,129,000 |
Equity Securities without Readily Determinable Fair Value, Amount | 14,725,000 | 4,689,000 |
Alternative Investment | 44,657,000 | 26,384,000 |
Other Investments and Securities, at Cost | $ 87,091,000 | $ 61,268,000 |
equity investment shares sold | 22,160 | 86,770 | 79,697
Proceeds from Sale of Federal Home Loan Bank Stock | $ 2,200,000 | $ 8,700,000 | $ 8,000,000
equity investment purchased, shares |  |  | 0
Gain on equity securities, net | 2,955,000 | 5,011,000 | $ 2,182,000
Alternative Investment, income recognized | 2,400,000 | 4,500,000 | 2,400,000
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount | 871,000 |  |
Investments [Member] |  |  |
Investment [Line Items] |  |  |
Gain on equity securities, net | $ 601,000 | $ (552,000) | $ (239,000)

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