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Investments Equity Securities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity securities | $ 5,447 | $ 5,282
Bond Mutual Funds [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity securities | 739 | 740
Common Stock [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity securities | 810 | 665
Nonredeemable Preferred Stock [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity securities | 7 | 7
Nonredeemable Preferred Stock Fund |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity securities | $ 3,891 | $ 3,870

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