v3.26.1
Fair Value of Financial Instruments - Narrative (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial instruments, fair value $ 341,575 $ 364,726
Underwriting-related derivative liability 9,236 3,984
Other investments 173,280 173,358
Equity securities 11,748 11,748
Contingent receivable 11,923 9,955
Asset Purchase Agreement    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Net present value of total distributions 11,923 9,955
Investments in direct lending entities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other investments 53,127 53,275
Total unfunded commitments on equity method investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other investments 76,870 78,911
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial instruments, fair value 151,662 151,883
Underwriting-related derivative liability 9,236 3,984
Equity securities 6,910 6,910
Contingent receivable 11,923 $ 9,955
Significant Unobservable Inputs (Level 3) | Discounted cash flows & option pricing models    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent receivable 11,923  
Significant Unobservable Inputs (Level 3) | Discounted cash flows    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Underwriting-related derivative liability $ 9,236  
Fixed maturities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, fair value disclosure, number of securities priced for fair value | security 0 0
Private equity funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities $ 9,742 $ 9,742
Estimate of Fair Value Measurement | Fixed maturities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, valued by third party, percentage 100.00% 100.00%