{"cik":2052568,"taxonomy":"us-gaap","tag":"OperatingLeaseLiability","label":"Operating Lease, Liability","description":"Present value of lessee's discounted obligation for lease payments from operating lease.","entityName":"Legence Corp.","units":{"USD":[{"end":"2025-12-31","val":125062000,"accn":"0002052568-26-000008","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-30","frame":"CY2025Q4I"}]}}