v3.26.1
Significant Concentrations (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Concentration Risk [Line Items]        
Percentage of fund from whole loan channel 0.95 0.94 0.95 0.93
Prosper Funding LLC        
Concentration Risk [Line Items]        
Percentage of fund from whole loan channel 0.95 0.94 0.95 0.93
Minimum        
Concentration Risk [Line Items]        
Transaction fee cap percentage (as a percent)     1.00%  
Minimum | Prosper Funding LLC        
Concentration Risk [Line Items]        
Transaction fee cap percentage (as a percent)     1.00%  
Maximum        
Concentration Risk [Line Items]        
Transaction fee cap percentage (as a percent)     9.99%  
Maximum | Prosper Funding LLC        
Concentration Risk [Line Items]        
Transaction fee cap percentage (as a percent)     9.99%  
Related Party One        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent) 43.30% 17.00% 47.80% 15.50%
Related Party One | Prosper Funding LLC        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent) 43.30% 17.00% 47.80% 15.50%
Related Party Two        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent) 13.10% 14.00%   13.80%
Related Party Two | Prosper Funding LLC        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent) 13.10% 14.00%   13.80%
Related Party Three        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent) 11.40% 12.90%   13.50%
Related Party Three | Prosper Funding LLC        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent) 11.40% 12.90%   13.50%
Related Party Four        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent)   10.90%   13.40%
Related Party Four | Prosper Funding LLC        
Concentration Risk [Line Items]        
Percentage of loan purchased (as a percent)   10.90%   13.40%