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Investments (Equity Securities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities $ 5,478 $ 5,447
Bond Mutual Funds [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities 742 739
Common Stock    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities 973 810
Non-redeemable Preferred Stock [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities 7 7
Nonredeemable Preferred Stock Fund Member [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities $ 3,756 $ 3,891