{"cik":1718108,"taxonomy":"us-gaap","tag":"AssetsCurrent","label":"Assets, Current","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","entityName":"SURFACE ONCOLOGY, INC.","units":{"USD":[{"end":"2017-12-31","val":71330000,"accn":"0001564590-18-014529","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-29"},{"end":"2017-12-31","val":71330000,"accn":"0001564590-18-021570","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":71330000,"accn":"0001564590-18-029110","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":71330000,"accn":"0001564590-19-006783","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-07","frame":"CY2017Q4I"},{"end":"2018-03-31","val":101230000,"accn":"0001564590-18-014529","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-29","frame":"CY2018Q1I"},{"end":"2018-06-30","val":193988000,"accn":"0001564590-18-021570","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":177913000,"accn":"0001564590-18-029110","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":164601000,"accn":"0001564590-19-006783","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-07"},{"end":"2018-12-31","val":164601000,"accn":"0001564590-19-017527","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-09"},{"end":"2018-12-31","val":164601000,"accn":"0001564590-19-029612","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-07"},{"end":"2018-12-31","val":164601000,"accn":"0001564590-19-042483","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"end":"2018-12-31","val":164601000,"accn":"0001564590-20-009521","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018Q4I"},{"end":"2019-03-31","val":144863000,"accn":"0001564590-19-017527","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-09","frame":"CY2019Q1I"},{"end":"2019-06-30","val":129530000,"accn":"0001564590-19-029612","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-07","frame":"CY2019Q2I"},{"end":"2019-09-30","val":114308000,"accn":"0001564590-19-042483","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12","frame":"CY2019Q3I"},{"end":"2019-12-31","val":107926000,"accn":"0001564590-20-009521","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10"},{"end":"2019-12-31","val":107926000,"accn":"0001564590-20-024469","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-12"},{"end":"2019-12-31","val":107926000,"accn":"0001628280-20-012388","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-11"},{"end":"2019-12-31","val":107926000,"accn":"0001718108-20-000015","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-10"},{"end":"2019-12-31","val":107926000,"accn":"0001718108-21-000013","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-09","frame":"CY2019Q4I"},{"end":"2020-03-31","val":93293000,"accn":"0001564590-20-024469","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-12","frame":"CY2020Q1I"},{"end":"2020-06-30","val":117580000,"accn":"0001628280-20-012388","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-11","frame":"CY2020Q2I"},{"end":"2020-09-30","val":107596000,"accn":"0001718108-20-000015","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-10","frame":"CY2020Q3I"},{"end":"2020-12-31","val":180509000,"accn":"0001718108-21-000013","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-09"},{"end":"2020-12-31","val":180509000,"accn":"0001718108-21-000024","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":180509000,"accn":"0001718108-21-000030","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":180509000,"accn":"0001718108-21-000034","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04"},{"end":"2020-12-31","val":180509000,"accn":"0001718108-22-000006","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-02","frame":"CY2020Q4I"},{"end":"2021-03-31","val":179046000,"accn":"0001718108-21-000024","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":170773000,"accn":"0001718108-21-000030","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":154757000,"accn":"0001718108-21-000034","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04","frame":"CY2021Q3I"},{"end":"2021-12-31","val":157346000,"accn":"0001718108-22-000006","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-02"},{"end":"2021-12-31","val":157346000,"accn":"0001718108-22-000015","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-09"},{"end":"2021-12-31","val":157346000,"accn":"0001718108-22-000019","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-03"},{"end":"2021-12-31","val":157346000,"accn":"0001718108-22-000022","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-02"},{"end":"2021-12-31","val":157346000,"accn":"0001718108-23-000004","fy":2022,"fp":"FY","form":"10-K","filed":"2023-03-09"},{"end":"2021-12-31","val":157346000,"accn":"0001193125-23-181336","fy":null,"fp":null,"form":"8-K","filed":"2023-07-03","frame":"CY2021Q4I"},{"end":"2022-03-31","val":184285000,"accn":"0001718108-22-000015","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-09","frame":"CY2022Q1I"},{"end":"2022-06-30","val":161505000,"accn":"0001718108-22-000019","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-03","frame":"CY2022Q2I"},{"end":"2022-09-30","val":150122000,"accn":"0001718108-22-000022","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-02","frame":"CY2022Q3I"},{"end":"2022-12-31","val":129140000,"accn":"0001718108-23-000004","fy":2022,"fp":"FY","form":"10-K","filed":"2023-03-09"},{"end":"2022-12-31","val":129140000,"accn":"0001718108-23-000013","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":129140000,"accn":"0001193125-23-181336","fy":null,"fp":null,"form":"8-K","filed":"2023-07-03"},{"end":"2022-12-31","val":129140000,"accn":"0001718108-23-000019","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-02","frame":"CY2022Q4I"},{"end":"2023-03-31","val":107209000,"accn":"0001718108-23-000013","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":60588000,"accn":"0001718108-23-000019","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-02","frame":"CY2023Q2I"}]}}