v3.26.1
Policyholders' Liabilities (Liability for Future Policy Benefits, Revenue and Interest Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
International Insurance Segment        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income $ 28,369 $ 28,878 $ 53,567 $ 54,486
Liability for Future Policy Benefit, Interest Expense 9,453 9,725 18,912 19,570
Domestic Insurance Segment        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 15,334 14,510 30,074 28,699
Liability for Future Policy Benefit, Interest Expense 3,892 3,796 7,758 7,555
International Insurance, Permanent        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 22,672 21,958 43,914 43,725
Liability for Future Policy Benefit, Interest Expense 7,624 7,962 15,316 16,043
International Insurance, Permanent Limited Pay        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 4,238 3,891 9,009 8,352
Liability for Future Policy Benefit, Interest Expense 1,829 1,763 3,596 3,527
International Insurance, Other        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income, Net Of Adjustments 1,803 3,268 1,219 2,932
Liability for Future Policy Benefit, Interest Expense, Net Of Adjustments 0 0 0 0
International Insurance, Life Insurance, Reinsurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Reinsurance 516 428 900 899
Liability for Future Policy Benefit, Interest Expense 0 0 0 0
International Insurance, Life Insurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 28,197 28,689 53,242 54,110
Liability for Future Policy Benefit, Interest Expense 9,453 9,725 18,912 19,570
International Insurance, Accident And Health, Other        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 172 189 325 376
Liability for Future Policy Benefit, Interest Expense 0 0 0 0
Domestic Insurance, Life Insurance, Permanent        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 17,207 14,017 32,873 27,406
Liability for Future Policy Benefit, Interest Expense 1,758 1,679 3,491 3,331
Domestic Insurance, Life Insurance, Permanent Limited Pay        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 1,983 2,040 3,956 4,163
Liability for Future Policy Benefit, Interest Expense 2,134 2,117 4,267 4,224
Domestic Insurance, Life Insurance, Other        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income   776 225 1,273
Liability for Future Policy Benefit, Interest Expense 0 0 0 0
Liability for Future Policy Benefit, Gross Premium Expense (228)      
Domestic Insurance, Life Insurance, Reinsurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Reinsurance 3,885 2,584 7,495 4,666
Liability for Future Policy Benefit, Interest Expense 0 0 0 0
Domestic Insurance, Life Insurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 15,077 14,249 29,559 28,176
Liability for Future Policy Benefit, Interest Expense 3,892 3,796 7,758 7,555
Domestic Insurance, Accident And Health, Other        
Liability for Future Policy Benefit, Activity [Line Items]        
Liability for Future Policy Benefit, Gross Premium Income 258 262 516 524
Liability for Future Policy Benefit, Reinsurance 1 1 1 1
Liability for Future Policy Benefit, Interest Expense 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 257 261 515 523
Liability for Future Policy Benefit, Interest Expense $ 0 $ 0 $ 0 $ 0