Business and Basis of Presentation	12 Months Ended
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	Note 1—Business and Basis of Presentation Description of the Business Warrior Met Coal, Inc. is a U.S.-based, environmentally and socially minded supplier to the global steel industry. The Company is dedicated entirely to mining non-thermal steelmaking coal used as a critical component of steel production by metal manufacturers in Europe, South America and Asia. The Company is a large-scale, low-cost producer and exporter of premium steelmaking coal, also known as hard-coking coal ("HCC"), operating highly efficient longwall operations in its underground mines based in Alabama. The HCC that the Company produces from the Blue Creek coal seam contains very low sulfur and has strong coking properties. The Company also generates ancillary revenues from the sale of natural gas extracted as a byproduct from the underground coal mines and royalty revenues from leased properties. Basis of Presentation The accompanying consolidated financial statements include the accounts of Warrior Met Coal, Inc. and its subsidiaries (the "Company"). All significant intercompany transactions and balances have been eliminated in consolidation. Collective Bargaining Agreement The Company's Collective Bargaining Agreement (“CBA”) with the United Mine Workers of America (“UMWA”) expired on April 1, 2021 and the labor union initiated a strike after an agreement on a new contract was not reached. The Company incurred business interruption expenses of approximately $0.1 million and $0.5 million for the years ended December 31, 2025 and December 31, 2024, respectively, which represents ongoing legal expenses associated with the ongoing labor negotiations. The Company incurred $8.3 million for the years ended December 31, 2023, which represent non-recurring expenses that were directly attributable to the labor strike for incremental safety and security, labor negotiations and other expenses. These expenses are also presented separately in the Consolidated Statements of Operations. On February 16, 2023, the labor union representing certain of the Company's hourly employees announced that they were ending the strike and made an unconditional offer to return to work. The Company continues to engage in good faith efforts with the labor union to reach an agreement on a new contract.

Business and Basis of Presentation

12 Months Ended

Dec. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Note 1—Business and Basis of Presentation

Description of the Business

Warrior Met Coal, Inc. is a U.S.-based, environmentally and socially minded supplier to the global steel industry. The Company is dedicated entirely to mining non-thermal steelmaking coal used as a critical component of steel production by metal manufacturers in Europe, South America and Asia. The Company is a large-scale, low-cost producer and exporter of premium steelmaking coal, also known as hard-coking coal ("HCC"), operating highly efficient longwall operations in its underground mines based in Alabama. The HCC that the Company produces from the Blue Creek coal seam contains very low sulfur and has strong coking properties. The Company also generates ancillary revenues from the sale of natural gas extracted as a byproduct from the underground coal mines and royalty revenues from leased properties.

Basis of Presentation

The accompanying consolidated financial statements include the accounts of Warrior Met Coal, Inc. and its subsidiaries (the "Company"). All significant intercompany transactions and balances have been eliminated in consolidation.

Collective Bargaining Agreement

The Company's Collective Bargaining Agreement (“CBA”) with the United Mine Workers of America (“UMWA”) expired on April 1, 2021 and the labor union initiated a strike after an agreement on a new contract was not reached. The Company incurred business interruption expenses of approximately $0.1 million and $0.5 million for the years ended December 31, 2025 and December 31, 2024, respectively, which represents ongoing legal expenses associated with the ongoing labor negotiations. The Company incurred $8.3 million for the years ended December 31, 2023, which represent non-recurring expenses that were directly attributable to the labor strike for incremental safety and security, labor negotiations and other expenses. These expenses are also presented separately in the Consolidated Statements of Operations. On February 16, 2023, the labor union representing certain of the Company's hourly employees announced that they were ending the strike and made an unconditional offer to return to work. The Company continues to engage in good faith efforts with the labor union to reach an agreement on a new contract.