v3.26.1
Business and Basis of Presentation Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Derivative [Line Items]        
Stockholders' Equity Attributable to Noncontrolling Interest $ 120,956   $ 117,395  
Preferred Stock, Shares Issued 0   0  
Redeemable Noncontrolling Interest, Equity, Carrying Amount $ 195,969 $ 245,461 $ 252,981 $ 199,402
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 1,980 258    
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders (443) (708)    
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest (3,988) (1,654)    
Noncontrolling Interest, Change in Redemption Value 807 (10,825)    
Temporary Equity, Accretion to Redemption Value, Adjustment (807) 548    
Disposal Group, Including Discontinued Operation, Assets   6,392,004    
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent 0 (30,247)    
Put / call option exercise (49,708) 0    
Payments to Noncontrolling Interests $ (383)      
Discontinued Operations, Held-for-Sale or Disposed of by Sale | Ambac Assurance Corporation [Member]        
Derivative [Line Items]        
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax   (14,497)    
Disposal Group, Including Discontinued Operation, Revenue   26,797    
Disposal Group, Including Discontinued Operation, Operating Expense   41,594    
Disposal Group, Including Discontinued Operation, Operating Income (Loss)   (14,797)    
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent   $ (30,247)