{"cik":1728117,"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":"GOSSAMER BIO, INC.","units":{"USD":[{"end":"2019-06-30","val":28281000,"accn":"0001564590-19-030814","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08","frame":"CY2019Q2I"},{"end":"2019-09-30","val":28370000,"accn":"0001564590-19-042943","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12","frame":"CY2019Q3I"},{"end":"2019-12-31","val":28459000,"accn":"0001564590-20-012323","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-24","frame":"CY2019Q4I"},{"end":"2020-03-31","val":28548000,"accn":"0001564590-20-024690","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-12","frame":"CY2020Q1I"}]}}