{"cik":2089982,"taxonomy":"us-gaap","tag":"LiabilitiesCurrent","label":"Liabilities, Current","description":"Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.","entityName":"HCM IV Acquisition Corp.","units":{"USD":[{"end":"2025-12-31","val":195614,"accn":"0001213900-26-035836","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-30","frame":"CY2025Q4I"}]}}