v3.26.3
Assured Life Re Acquisition - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 8 Months Ended 9 Months Ended 15 Months Ended
Jan. 21, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Assured Guaranty Re Ltd. | BERMUDA              
Business Combination [Line Items]              
Dividend payment restrictions schedule, percentage of statutory capital and surplus         25.00%    
Statutory amount available for dividend payments without regulatory approval   $ 41,000   $ 41,000 $ 41,000   $ 41,000
Unencumbered asset   31,000   31,000 31,000   31,000
Dividend payment restrictions schedule amount of statutory capital         31,000    
Assured Life Re Acquisition              
Business Combination [Line Items]              
Voting equity interest acquired, percentage 100.00%            
Cash purchase price $ 158,000            
Acquiree's revenue since acquisition date, actual   14,000   39,000      
Acquiree's earnings (loss) since acquisition date, actual   (200)   1,000      
Acquisition-related cost, expense       $ 4,000     $ 7,000
Pro forma revenue   214,000 $ 228,000   665,000 $ 845,000  
Pro forma income (loss), after tax   $ 81,000 $ 126,000   $ 202,000 $ 394,000  
Assured Life Re Acquisition | Pension Risk Transfers Insurance Liabilities              
Business Combination [Line Items]              
Acquired assets, weighted average useful life 10 years 3 months 18 days            
Assured Life Re Acquisition | Multi-year Guaranteed Annuity Policyholder Balances              
Business Combination [Line Items]              
Acquired assets, weighted average useful life 2 years 3 months 18 days            
Assured Life Re Acquisition, Pension Risk Transfers              
Business Combination [Line Items]              
Value of business acquired $ 14,000            
Negative value of business acquired (14,000)            
Assured Life Re Acquisition, Multi-year Guaranteed Annuities              
Business Combination [Line Items]              
Value of business acquired (14,000)            
Negative value of business acquired $ 14,000