XML 68 R56.htm IDEA: XBRL DOCUMENT v3.25.1
Fair Value Measurements - Schedule of Quantitative Information about Significant Unobservable Inputs in the Fair Value Measurement of Level 3 Assets (Details)
$ in Thousands
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Other investment assets measured at fair value $ 283,366 $ 222,447    
Total Level 3 securities 662,511 619,247    
Corporate securities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total Level 3 securities 240,917 242,679 $ 287,496 $ 297,332
CLO and other ABS        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total Level 3 securities 412,802 367,994 $ 260,097 $ 245,313
Valuation Technique, Discounted Cash Flow        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total assets measured at fair value 379,145 396,800    
Valuation Technique, Discounted Cash Flow | Corporate securities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total assets measured at fair value 147,340 147,294    
Valuation Technique, Discounted Cash Flow | CLO and other ABS        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total assets measured at fair value $ 231,805 $ 249,506    
Valuation Technique, Discounted Cash Flow | Illiquidity Spread | Minimum | Corporate securities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt securities, available-for-sale, measurement input (0.044) (0.044)    
Valuation Technique, Discounted Cash Flow | Illiquidity Spread | Minimum | CLO and other ABS        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt securities, available-for-sale, measurement input (0.0097) (0.0097)    
Valuation Technique, Discounted Cash Flow | Illiquidity Spread | Maximum | Corporate securities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt securities, available-for-sale, measurement input 0.053 0.053    
Valuation Technique, Discounted Cash Flow | Illiquidity Spread | Maximum | CLO and other ABS        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt securities, available-for-sale, measurement input 0.196 0.196    
Valuation Technique, Discounted Cash Flow | Illiquidity Spread | Weighted Average | Corporate securities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt securities, available-for-sale, measurement input 0.018 0.017    
Valuation Technique, Discounted Cash Flow | Illiquidity Spread | Weighted Average | CLO and other ABS        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt securities, available-for-sale, measurement input 0.022 0.019