{"cik":1943421,"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":"Rubico Inc.","units":{"USD":[{"end":"2024-12-31","val":113413000,"accn":"0001140361-26-010621","fy":2025,"fp":"FY","form":"20-F","filed":"2026-03-23","frame":"CY2024Q4I"},{"end":"2025-12-31","val":134069000,"accn":"0001140361-26-010621","fy":2025,"fp":"FY","form":"20-F","filed":"2026-03-23","frame":"CY2025Q4I"}]}}