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Prepaid Expenses and Other
 12 Months Ended
Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid Expenses and Other Prepaid Expenses and Other
Prepaid expenses and other consisted of the following (in thousands):
 December 31, 2024December 31, 2023
Deferred longwall move expenses$24,643 $18,513 
Prepaid insurance3,616 1,991 
Other3,449 7,049 
Total prepaid expenses and other$31,708 $27,553