{"cik":1970743,"taxonomy":"us-gaap","tag":"OperatingLeaseRightOfUseAsset","label":"Operating Lease, Right-of-Use Asset","description":"Amount of lessee's right to use underlying asset under operating lease.","entityName":"RMX INDUSTRIES, INC.","units":{"USD":[{"end":"2026-06-30","val":78552,"accn":"0001213900-26-088751","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-13","frame":"CY2026Q2I"}]}}