v3.26.1
Financial Derivatives (Schedule of Credit Derivatives) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Credit Derivatives [Line Items]    
Financial derivatives–assets, at fair value $ 174,889 $ 142,723
Derivative Liability (80,793) (53,073)
Derivative Assets (Liabilities), at Fair Value, Net 94,096 89,650
Credit default swaps on asset-backed indices    
Credit Derivatives [Line Items]    
Financial derivatives–assets, at fair value 1,127 2,206
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Long    
Credit Derivatives [Line Items]    
Notional value 177 190
Financial derivatives–assets, at fair value $ 16 $ 9
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Long | Weighted Average    
Credit Derivatives [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    
Credit Derivatives [Line Items]    
Notional value $ 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    
Credit Derivatives [Line Items]    
Remaining Years to Maturity 34 years 11 months 4 days 33 years 18 days
Credit default swaps on corporate bond indices    
Credit Derivatives [Line Items]    
Financial derivatives–assets, at fair value $ 15,951 $ 4,621
Derivative Liability (32,305) (25,407)
Credit default swaps on corporate bond indices | Financial Derivatives - Assets | Long    
Credit Derivatives [Line Items]    
Notional value 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    
Credit Derivatives [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    
Credit Derivatives [Line Items]    
Notional value $ 983,097 $ 1,034,704
Remaining Years to Maturity 4 years 6 months 10 days 4 years 9 months 3 days
Derivative Liability $ (32,305) $ (25,407)
Credit default swaps on corporate bonds    
Credit Derivatives [Line Items]    
Derivative Liability (111) (155)
Credit default swaps on corporate bonds | Financial Derivatives - Liabilities | Short    
Credit Derivatives [Line Items]    
Notional value 13,000 13,000
Derivative Liability $ (111) $ (155)
Credit default swaps on corporate bonds | Financial Derivatives - Liabilities | Short | Weighted Average    
Credit Derivatives [Line Items]    
Remaining Years to Maturity 11 months 19 days 1 year 5 months 19 days
Credit default swaps    
Credit Derivatives [Line Items]    
Notional value $ 868,373 $ 909,243
Derivative Assets (Liabilities), at Fair Value, Net $ (15,340) $ (18,737)
Credit default swaps | Weighted Average    
Credit Derivatives [Line Items]    
Remaining Years to Maturity 4 years 6 months 18 days 5 years 8 months 26 days
Credit Default Swap, Asset Backed Securities    
Credit Derivatives [Line Items]    
Derivative Liability $ (2) $ (2)
Credit Default Swap, Asset Backed Securities | Financial Derivatives - Liabilities | Short    
Credit Derivatives [Line Items]    
Notional value 45 46
Derivative Liability $ (2) $ (2)
Credit Default Swap, Asset Backed Securities | Financial Derivatives - Liabilities | Short | Weighted Average    
Credit Derivatives [Line Items]    
Remaining Years to Maturity 9 years 2 months 26 days 9 years 8 months 26 days
Credit Default Swap, Selling Protection [Member]    
Credit Derivatives [Line Items]    
Fair Value $ 15,967 $ 4,630
Notional value $ 136,922 $ 165,200