{"iri":"http://fasb.org/us-gaap/2026#CoalSupplyAgreementsMember","label":"Coal Supply Agreements [Member]","definition":"Coal supply agreement under which an entity buys coal to meet the requirements of one of its facilities.","license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#CoalSupplyAgreementsMember"}