v3.26.1
Financial Derivatives (Credit Default Swaps) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Financial derivatives–assets, at fair value $ 174,889 $ 142,723
Financial derivatives–liabilities, at fair value- (80,793) (53,073)
Fair Value (94,096) (89,650)
Credit default swaps on asset-backed indices    
Derivative [Line Items]    
Financial derivatives–assets, at fair value 1,127 2,206
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Long    
Derivative [Line Items]    
Notional Amount (177) (190)
Financial derivatives–assets, at fair value $ 16 $ 9
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Long | Weighted Average    
Derivative [Line Items]    
Remaining Years to Maturity 11 years 6 months 11 years 11 months 26 days
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Short    
Derivative [Line Items]    
Notional Amount $ (9,153) $ (26,693)
Financial derivatives–assets, at fair value $ 1,111 $ 2,197
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Short | Weighted Average    
Derivative [Line Items]    
Remaining Years to Maturity 34 years 11 months 4 days 33 years 18 days
Credit default swaps on corporate bonds    
Derivative [Line Items]    
Financial derivatives–liabilities, at fair value- $ (111) $ (155)
Credit default swaps on corporate bonds | Financial Derivatives - Liabilities | Short    
Derivative [Line Items]    
Notional Amount (13,000) (13,000)
Financial derivatives–liabilities, at fair value- $ (111) $ (155)
Credit default swaps on corporate bonds | Financial Derivatives - Liabilities | Short | Weighted Average    
Derivative [Line Items]    
Remaining Years to Maturity 11 months 19 days 1 year 5 months 19 days
Credit default swaps on corporate bond indices    
Derivative [Line Items]    
Financial derivatives–assets, at fair value $ 15,951 $ 4,621
Financial derivatives–liabilities, at fair value- (32,305) (25,407)
Credit default swaps on corporate bond indices | Financial Derivatives - Assets | Long    
Derivative [Line Items]    
Notional Amount (136,745) (165,010)
Financial derivatives–assets, at fair value $ 15,951 $ 4,621
Credit default swaps on corporate bond indices | Financial Derivatives - Assets | Long | Weighted Average    
Derivative [Line Items]    
Remaining Years to Maturity 2 years 11 months 12 days 3 years 8 months 8 days
Credit default swaps on corporate bond indices | Financial Derivatives - Liabilities | Short    
Derivative [Line Items]    
Notional Amount $ (983,097) $ (1,034,704)
Financial derivatives–liabilities, at fair value- $ (32,305) $ (25,407)
Remaining Years to Maturity 4 years 6 months 10 days 4 years 9 months 3 days
Credit default swaps    
Derivative [Line Items]    
Notional Amount $ (868,373) $ (909,243)
Fair Value $ 15,340 $ 18,737
Credit default swaps | Weighted Average    
Derivative [Line Items]    
Remaining Years to Maturity 4 years 6 months 18 days 5 years 8 months 26 days