v3.26.1
PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Property and equipment $ 130,759 $ 121,515
Less: Accumulated depreciation and amortization (85,662) (77,242)
Total Property and Equipment, Net 45,097 44,273
Prosper Funding LLC    
Property, Plant and Equipment [Line Items]    
Less: Accumulated depreciation and amortization (41,370) (37,276)
Total Property and Equipment, Net 21,983 12,560
Internal-use software and website development costs    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 87,842 66,101
Internal-use software and website development costs | Prosper Funding LLC    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 63,353 $ 49,836
Operating lease right-of-use assets    
Property, Plant and Equipment [Line Items]    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Total Property and Equipment, Net Total Property and Equipment, Net
Operating lease right-of-use assets $ 22,690 $ 22,690
Computer equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 4,805 6,335
Office equipment and furniture    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 3,067 2,975
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 7,183 7,143
Assets not yet placed in service    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 5,172 $ 16,271