Policyholders' LIabilities - Liability for Future Policy Benefits, Revenue and Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	$ 28,773	$ 29,834	$ 54,980	$ 56,765
Liability for Future Policy Benefit, Interest Expense	10,699	10,861	21,605	21,781
Home Service Insurance:
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	11,066	11,632	22,151	22,308
Liability for Future Policy Benefit, Interest Expense	2,914	2,886	5,824	5,787
Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	22,507	22,818	44,965	45,075
Liability for Future Policy Benefit, Interest Expense	8,532	8,556	17,102	17,126
Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	3,610	3,336	7,778	6,992
Liability for Future Policy Benefit, Interest Expense	2,167	2,305	4,503	4,655
Life Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	2,738	3,845	2,815	5,270
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Life Insurance, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Liability for Future Policy Benefit, Reinsurance	412	253	1,060	753
Life Insurance, Net of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	28,443	29,746	54,498	56,584
Liability for Future Policy Benefit, Interest Expense	10,699	10,861	21,605	21,781
Life Insurance, Accident And Health, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	332	89	484	183
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Life Insurance, Accident And Health, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Liability for Future Policy Benefit, Reinsurance	2	1	2	2
Life Insurance, Accident And Health, Net Of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	330	88	482	181
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Home Service Insurance, Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	8,268	8,292	16,640	16,748
Liability for Future Policy Benefit, Interest Expense	1,322	1,325	2,646	2,667
Home Service Insurance, Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	2,117	2,102	4,271	4,143
Liability for Future Policy Benefit, Interest Expense	1,592	1,561	3,178	3,120
Home Service Insurance, Life Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	466	1,051	834	1,051
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Home Service Insurance, Life Insurance, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Liability for Future Policy Benefit, Reinsurance	2	5	17	19
Home Service Insurance, Life Insurance, Net of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	10,849	11,440	21,728	21,923
Liability for Future Policy Benefit, Interest Expense	2,914	2,886	5,824	5,787
Home Service Insurance, Accident And Health, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	217	192	423	385
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Home Service Insurance, Accident And Health, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Liability for Future Policy Benefit, Reinsurance	0	0	0	0
Home Service Insurance, Accident And Health, Net Of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	217	192	423	385
Liability for Future Policy Benefit, Interest Expense	$ 0	$ 0	$ 0	$ 0