{"cik":2088896,"taxonomy":"us-gaap","tag":"LesseeOperatingLeaseLiabilityPaymentsDue","label":"Lessee, Operating Lease, Liability, to be Paid","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease.","entityName":"X-Energy, Inc.","units":{"USD":[{"end":"2026-03-31","val":68259000,"accn":"0001193125-26-256376","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-06-04","frame":"CY2026Q1I"}]}}