{"iri":"http://fasb.org/us-gaap/2026#MainlineMember","label":"Mainline [Member]","definition":"Significant, primary, generally longer routes of a carrier that it operates under its own brand, depart from or arrive to major cities or destinations, which are not defined by the entity as regional.","license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#MainlineMember"}