{"cik":1651308,"taxonomy":"us-gaap","tag":"LongTermDebt","label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","entityName":"BEONE MEDICINES LTD.","units":{"USD":[{"end":"2025-12-31","val":836369000,"accn":"0001628280-26-011946","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-26"},{"end":"2025-12-31","val":836369000,"accn":"0001628280-26-030867","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-06"},{"end":"2025-12-31","val":836369000,"accn":"0001628280-26-052878","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-05","frame":"CY2025Q4I"},{"end":"2026-03-31","val":842920000,"accn":"0001628280-26-030867","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-06","frame":"CY2026Q1I"},{"end":"2026-06-30","val":788681000,"accn":"0001628280-26-052878","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-05","frame":"CY2026Q2I"}]}}