Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2026

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment and mining properties, net consist of the following:

In thousands	June 30, 2026		December 31, 2025
Mine development	$	2,124,075	$	1,657,873
Mineral interests	9,912,250		1,683,564
Land	84,694		9,961
Facilities and equipment(1)	2,748,233		1,741,055
Construction in progress	148,079		129,662
Total	$	15,017,331	$	5,222,115
Accumulated depreciation, depletion and amortization(2)	(2,854,195)		(2,477,231)
Property, plant and equipment and mining properties, net	$	12,163,136	$	2,744,884

(1) Includes $11.7 million and $123.8 million associated with facilities and equipment assets under finance leases at June 30, 2026 and December 31, 2025, respectively.

(2) Includes $10.4 million and $75.1 million of accumulated amortization related to assets under finance leases at June 30, 2026 and December 31, 2025, respectively.