Policyholders' Liabilities - Liability for Future Policy Benefit, Discounted Undiscounted Activity (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	$ 770,148	$ 621,935
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	1,623,273	1,495,206
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	570,976	481,963
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change	996,556	973,350
Home Service Insurance, Life Insurance, Permanent
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	444,658	455,552
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	487,177	484,740
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	257,925	275,629
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change	198,809	211,946
Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	45,502	47,161
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	324,043	326,821
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	40,627	42,138
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change	187,066	195,122
Home Service Insurance, Life Insurance, Permanent Limited Pay
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	74,616	77,266
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	319,376	320,810
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	48,690	53,075
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change	$ 111,639	$ 122,784