Property, Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment, Net [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment, net includes the following:

	December 31
	2025		2024
Coal lands and real estate	$	72,490	$	70,766
Mineral interests	73,850		69,148
Plant and equipment	354,447		317,933
Property, plant and equipment, at cost	500,787		457,847
Less allowances for depreciation, depletion and amortization	213,241		198,390
	$	287,546	$	259,457