{"iri":"http://fasb.org/us-gaap/2026#IncreaseDecreaseInCoalInventories","label":"Increase (Decrease) in Coal Inventories","definition":"The increase (decrease) during the reporting period in the value of coal held in inventory.","license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#IncreaseDecreaseInCoalInventories"}