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Fair Value Measurements Financial Instruments not Carried at Fair Value (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Reported Value Measurement [Member]      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Policy loans $ 78,085   $ 80,307
Mortgage loans 50   1,148
Cash and cash equivalents 21,007   27,294
Annuity - investment contracts 66,592   64,384
Limited partnership 62,454   56,038
FHLB common stocks 192   192
All other investments 21   21
Other long-term investments 62,717   57,399
Reported Value Measurement [Member] | Other Property      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Mortgage loans 0   1,000
Reported Value Measurement [Member] | Single Family      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Mortgage loans 50   148
Estimate of Fair Value, Fair Value Disclosure [Member]      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Policy loans 78,085   80,307
Cash and Cash Equivalents, Fair Value Disclosure 21,007   27,294
Annuity - investment contracts 57,548   72,352
Estimate of Fair Value, Fair Value Disclosure [Member] | Other Property      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Mortgage loans 0 $ 1,000 1,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Single Family      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Mortgage loans 52   169
Policy loans 78,085   80,307
Cash and cash equivalents 21,007   27,294
Annuity - investment contracts $ 91,984   $ 83,918
Insurance policy loans interest rate 7.70%   7.70%
Fair value maximum rate of investment contract 4.53%   2.63%
Fair value minimum interest rate of investment contract 3.91%   0.50%
Limited partnership $ 62,454   $ 56,038
Other long-term investments $ 62,717   $ 57,399
Other Property      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Mortgage loans on real estate, interest rate   6.00%  
Single Family      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Mortgage loans on real estate, interest rate 7.00%   6.40%
Mortgage loan maturity higher end range 6 years    
Mortgage loans interest rate used to estimate fair value 6.25%