Policyholders' Liabilities - Liability for Future Policy Benefits, Revenue and Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	$ 32,201	$ 31,148	$ 91,667	$ 86,128
Liability for Future Policy Benefit, Interest Expense	10,660	10,779	32,021	32,384
Home Service Insurance:
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	10,712	10,942	32,480	33,093
Liability for Future Policy Benefit, Interest Expense	2,985	2,921	8,934	8,745
Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	27,930	23,654	76,047	68,619
Liability for Future Policy Benefit, Interest Expense	8,391	8,471	25,282	25,573
Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	3,395	3,555	11,067	11,333
Liability for Future Policy Benefit, Interest Expense	2,269	2,308	6,739	6,811
Life Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	2,508	4,279	7,550	7,094
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, Reinsurance	1,828	392	3,559	1,452
Liability for Future Policy Benefit, Interest Expense	0	0	0	0
Life Insurance, Net of Reinsurance
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	32,005	31,096	91,105	85,594
Liability for Future Policy Benefit, Interest Expense	10,660	10,779	32,021	32,384
Life Insurance, Accident And Health, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	197	53	565	537
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, Reinsurance	1	1	3	3
Liability for Future Policy Benefit, Interest Expense	0	0	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	196	52	562	534
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	8,257	8,372	24,723	25,012
Liability for Future Policy Benefit, Interest Expense	1,349	1,322	4,040	3,968
Home Service Insurance, Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	1,837	2,154	5,905	6,425
Liability for Future Policy Benefit, Interest Expense	1,636	1,599	4,894	4,777
Home Service Insurance, Life Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	367	178	1,114	1,012
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, Reinsurance	5	6	24	23
Liability for Future Policy Benefit, Interest Expense	0	0	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	10,456	10,698	31,718	32,426
Liability for Future Policy Benefit, Interest Expense	2,985	2,921	8,934	8,745
Home Service Insurance, Accident And Health, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Gross Premium Income	256	244	762	667
Liability for Future Policy Benefit, Interest Expense	$ 0	$ 0	$ 0	$ 0