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Other Accrued Liabilities (Tables)
 12 Months Ended
Dec. 31, 2025
Other Liabilities Disclosure [Abstract]  
Schedule of Other Accrued Liabilities
Other accrued liabilities consisted of the following:
 December 31,
 20252024
Subsidence Liability$113,352 $88,259 
Accrued Compensation and Benefits73,783 54,138 
Accrued Other Taxes53,038 6,973 
Other63,951 31,928 
Current Portion of Long-Term Liabilities:  
Asset Retirement Obligations38,738 35,554 
Pneumoconiosis Benefits24,539 16,389 
Postretirement Benefits Other than Pensions18,696 17,887 
Workers' Compensation18,241 11,056 
Total Other Accrued Liabilities$404,338 $262,184