PROPERTY, PLANT AND EQUIPMENT (Tables)

9 Months Ended

Sep. 30, 2024

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment and Depreciation and Depletion Expense

The Company’s property, plant and equipment consisted of the following:

	September 30, 2024		December 31, 2023
(in thousands)
Land and land improvements	$	40,254	$	27,091
Buildings and building improvements	95,236		92,203
Machinery and equipment	564,681		503,145
Assets under construction	262,994		211,848
Mineral rights	438,395		438,395
Property, plant and equipment, gross	1,401,560		1,272,682
Less: Accumulated depreciation and depletion	(171,043)		(114,628)
Property, plant and equipment, net	$	1,230,517	$	1,158,054

The Company’s depreciation and depletion expense were as follows:

	For the three months ended September 30,				For the nine months ended September 30,
(in thousands)	2024		2023		2024		2023
Depreciation expense	$	16,018	$	13,951	$	46,012	$	28,385
Depletion expense	$	2,969	$	2,664	$	8,864	$	8,407