{"cik":1542574,"taxonomy":"us-gaap","tag":"OperatingLeaseLiability","label":"Operating Lease, Liability","description":"Present value of lessee's discounted obligation for lease payments from operating lease.","entityName":"PROSPER MARKETPLACE, INC.","units":{"USD":[{"end":"2025-12-31","val":9193000,"accn":"0001416265-26-000035","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-13","frame":"CY2025Q4I"},{"end":"2026-06-30","val":7419000,"accn":"0001416265-26-000035","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-13","frame":"CY2026Q2I"}]}}