v3.26.3
Debt - Schedule of Debt (Details)
3 Months Ended 9 Months Ended
Sep. 24, 2026
USD ($)
Jan. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 17, 2026
USD ($)
Jan. 15, 2026
USD ($)
Dec. 31, 2025
USD ($)
£ / $
Jun. 01, 2017
USD ($)
Jun. 01, 2017
EUR (€)
Debt Instrument [Line Items]                      
Exchange rate | £ / $                 1.3491    
Outstanding as of     $ 2,335,000,000   $ 2,335,000,000            
Carrying value (at amortized cost) as of     2,300,133,000   2,300,133,000       $ 2,127,829,000    
Fair value     2,184,147,000   2,184,147,000       2,146,990,000    
Loss on debt extinguishment     $ 2,000,000.0 $ 0 $ 2,600,000 $ 0          
5.000% Bonds due 2026 | Burford Capital PLC | Bonds                      
Debt Instrument [Line Items]                      
Interest rate     5.00%   5.00%         5.00% 5.00%
Outstanding as of     $ 0   $ 0            
Carrying value (at amortized cost) as of     0   0       218,325,000    
Fair value     $ 0   $ 0       217,417,000    
Principal value                   $ 225,800,000 € 175,000,000.0
Loss on debt extinguishment   $ 600,000                  
6.250% Senior Notes due 2028 | Burford Capital Global Finance LLC | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate 6.25%   6.25%   6.25%            
Outstanding as of     $ 0   $ 0            
Carrying value (at amortized cost) as of     0   0       397,155,000    
Fair value     $ 0   $ 0       398,188,000    
Loss on debt extinguishment $ 2,000,000.0                    
8.000% Senior Secured Notes due 2029 | Burford Capital Global Finance LLC | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate     8.00%   8.00%   8.00%        
Outstanding as of     $ 300,000,000   $ 300,000,000            
Carrying value (at amortized cost) as of     293,303,000   293,303,000       0    
Fair value     $ 305,529,000   $ 305,529,000       0    
Principal value             $ 300,000,000.0        
6.875% Senior Notes due 2030 | Burford Capital Global Finance LLC | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate     6.875%   6.875%            
Outstanding as of     $ 360,000,000   $ 360,000,000            
Carrying value (at amortized cost) as of     355,289,000   355,289,000       354,291,000    
Fair value     $ 342,749,000   $ 342,749,000       353,693,000    
9.250% Senior Notes due 2031 | Burford Capital Global Finance LLC | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate     9.25%   9.25%            
Outstanding as of     $ 675,000,000   $ 675,000,000            
Carrying value (at amortized cost) as of     669,024,000   669,024,000       668,080,000    
Fair value     $ 662,999,000   $ 662,999,000       696,722,000    
7.500% Senior Notes due July 15, 2033 | Burford Capital Global Finance LLC | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate     7.50%   7.50%            
Outstanding as of     $ 500,000,000   $ 500,000,000            
Carrying value (at amortized cost) as of     490,974,000   490,974,000       489,978,000    
Fair value     $ 434,770,000   $ 434,770,000       480,970,000    
8.50% Senior Notes due January 15, 2034 | Burford Capital Global Finance LLC | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate     8.50%   8.50%     8.50%      
Outstanding as of     $ 500,000,000   $ 500,000,000            
Carrying value (at amortized cost) as of     491,543,000   491,543,000       0    
Fair value     $ 438,100,000   $ 438,100,000       $ 0    
Principal value               $ 500,000,000.0