Reclamation (Tables)

6 Months Ended

Jun. 30, 2023

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligation

	Three Months Ended June 30,				Six Months Ended June 30,
In thousands	2023		2022		2023		2022
Asset retirement obligation - Beginning	$	205,380	$	184,322	$	202,431	$	181,888
Accretion	4,073		3,529		8,066		6,992
Settlements	(1,493)		(1,449)		(2,537)		(2,478)
Asset retirement obligation - Ending	$	207,960	$	186,402	$	207,960	$	186,402