Policyholders' Liabilities - Liability for Future Policy Benefits, Revenue and Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	$ 29,154	$ 27,861
Liability for Future Policy Benefit, Interest Expense	10,581	10,727
Home Service Insurance:
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	10,643	10,814
Liability for Future Policy Benefit, Interest Expense	3,023	2,970
Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	27,052	23,316
Liability for Future Policy Benefit, Interest Expense	8,367	8,464
Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	4,627	3,646
Liability for Future Policy Benefit, Interest Expense	2,214	2,263
Life Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	(172)	1,109
Liability for Future Policy Benefit, Interest Expense	0	0
Life Insurance, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Reinsurance	2,540	373
Liability for Future Policy Benefit, Interest Expense	0	0
Life Insurance, Net of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	28,967	27,698
Liability for Future Policy Benefit, Interest Expense	10,581	10,727
Life Insurance, Accident And Health, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	188	164
Liability for Future Policy Benefit, Interest Expense	0	0
Life Insurance, Accident And Health, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Reinsurance	1	1
Liability for Future Policy Benefit, Interest Expense	0	0
Life Insurance, Accident And Health, Net Of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	187	163
Liability for Future Policy Benefit, Interest Expense	0	0
Home Service Insurance, Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	8,104	8,241
Liability for Future Policy Benefit, Interest Expense	1,366	1,344
Home Service Insurance, Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	1,957	2,040
Liability for Future Policy Benefit, Interest Expense	1,657	1,626
Home Service Insurance, Life Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	333	294
Liability for Future Policy Benefit, Interest Expense	0	0
Home Service Insurance, Life Insurance, Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Reinsurance	12	12
Liability for Future Policy Benefit, Interest Expense	0	0
Home Service Insurance, Life Insurance, Net of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	10,382	10,563
Liability for Future Policy Benefit, Interest Expense	3,023	2,970
Home Service Insurance, Accident And Health, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	261	251
Liability for Future Policy Benefit, Interest Expense	$ 0	$ 0