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Subordinated Notes (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Aug. 20, 2020
Subordinated Borrowing [Line Items] |  |  |
Basis spread on variable rate (percent) | 1.48% |  |
Long-term Debt, Gross |  |  | $ 175.0
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.50%
Debt Issuance Costs, Gross |  |  | $ 2.4
Subordinated debt |  |  |
Subordinated Borrowing [Line Items] |  |  |
Basis spread on variable rate (percent) | 4.39% |  |
Long-term Debt | $ 173.7 | $ 173.2 |
Trust I |  |  |
Subordinated Borrowing [Line Items] |  |  |
Preferred securities issued | 15.0 |  |
Junior subordinated notes |  |  |
Subordinated Borrowing [Line Items] |  |  |
Junior subordinated debt purchased by Trust I | $ 15.5 |  |

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