{"cik":1778922,"taxonomy":"us-gaap","tag":"Assets","label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","entityName":"SpyGlass Pharma, Inc.","units":{"USD":[{"end":"2024-12-31","val":23318000,"accn":"0001778922-26-000020","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":115866000,"accn":"0001778922-26-000020","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-26"},{"end":"2025-12-31","val":115866000,"accn":"0001778922-26-000035","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-14"},{"end":"2025-12-31","val":115866000,"accn":"0001778922-26-000045","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-06","frame":"CY2025Q4I"},{"end":"2026-03-31","val":258386000,"accn":"0001778922-26-000035","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-14","frame":"CY2026Q1I"},{"end":"2026-06-30","val":243433000,"accn":"0001778922-26-000045","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-06","frame":"CY2026Q2I"}]}}