Investments Equity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 14,844	$ 22,102
Equity Funds [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	3,571	3,174
Bond Mutual Funds [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	5,060	12,354
Common Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	990	1,143
Nonredeemable Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	161	281
Nonredeemable Preferred Stock Fund
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 5,062	$ 5,150