v3.26.1
Loss And Loss Adjustment Expense Reserves (Schedule Of Losses And Loss Adjustment Expenses, Additional Disclosure) (Details) - Fire - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Feb. 28, 2026
Sep. 30, 2025
Unusual or Infrequent Item, or Both [Line Items]          
Subrogation recovered and recoverable - Eaton fire $ (558,887)   $ (537,506)    
Negotiated payout percentage by utility companies         52.00%
Settled payout percentage by utility companies       55.00%  
Subrogation recovered and recoverable - Palisades fire (50,204)   (48,026)    
Subrogation recovered and recoverable - Palisades fire, amount received 32,000        
Subrogation recovered and recoverable - Palisades fire, remaining balance 18,000        
Reinsurance limit 1,290,000        
Reinsurance retention 150,000        
Reduction of reinsurance limit 6,500        
Reinsurance recovered and recoverable (1,293,500)   (1,293,500)    
Reinsurance limit, additional utilized amount net of loss reinsurance treaty 10,000        
Loss from catastrophes, share of indirect losses, gross $ 91,296   92,717    
Assessment for shortfall   $ 50,000      
Percentage of recoupable assesment 50.00%        
Recoupable assessment $ (25,000)   $ (25,000)    
Recouped amount $ 4,500        
Minimum          
Unusual or Infrequent Item, or Both [Line Items]          
Average payout percentage by utility companies 55.00%