{"cik":1943421,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"Rubico Inc.","units":{"USD/shares":[{"start":"2023-01-01","end":"2023-12-31","val":507.54,"accn":"0001140361-26-010621","fy":2025,"fp":"FY","form":"20-F","filed":"2026-03-23","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":454.96,"accn":"0001140361-26-010621","fy":2025,"fp":"FY","form":"20-F","filed":"2026-03-23","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":49.07,"accn":"0001140361-26-010621","fy":2025,"fp":"FY","form":"20-F","filed":"2026-03-23","frame":"CY2025"}]}}