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Other Accrued Liabilities (Tables)
9 Months Ended
Sep. 30, 2025
Other Liabilities Disclosure [Abstract]  
Schedule of Accrued Liabilities
Other accrued liabilities consisted of the following:
September 30,
2025
December 31,
2024
Subsidence Liability$118,191 $88,259 
Accrued Compensation and Benefits57,563 54,138 
Accrued Other Taxes50,759 6,973 
Other67,594 31,928 
Current Portion of Long-Term Liabilities:  
Asset Retirement Obligations41,496 35,554 
Pneumoconiosis Benefits25,259 16,389 
Postretirement Benefits Other than Pensions21,422 17,887 
Workers' Compensation17,360 11,056 
Total Other Accrued Liabilities$399,644 $262,184