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Policyholders' Liabilities - Liability for Future Policy Benefits, Revenue and Interest Expense (Details) - USD ($) $ in Thousands | 3 Months Ended
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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

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