{"cik":2101833,"taxonomy":"us-gaap","tag":"CommonStockSharesOutstanding","label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","entityName":"ATII Holdings Inc.","units":{"shares":[{"end":"2025-12-31","val":100,"accn":"0001104659-26-055717","fy":null,"fp":null,"form":"S-4","filed":"2026-05-05"},{"end":"2025-12-31","val":100,"accn":"0001104659-26-076467","fy":null,"fp":null,"form":"S-4/A","filed":"2026-06-22"},{"end":"2025-12-31","val":100,"accn":"0001104659-26-086700","fy":null,"fp":null,"form":"S-4/A","filed":"2026-07-24"},{"end":"2025-12-31","val":100,"accn":"0001104659-26-104734","fy":null,"fp":null,"form":"S-4/A","filed":"2026-09-02","frame":"CY2025Q4I"},{"end":"2026-03-31","val":100,"accn":"0001104659-26-076467","fy":null,"fp":null,"form":"S-4/A","filed":"2026-06-22"},{"end":"2026-03-31","val":100,"accn":"0001104659-26-086700","fy":null,"fp":null,"form":"S-4/A","filed":"2026-07-24","frame":"CY2026Q1I"},{"end":"2026-06-30","val":100,"accn":"0001104659-26-104734","fy":null,"fp":null,"form":"S-4/A","filed":"2026-09-02","frame":"CY2026Q2I"}]}}