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Reclamation

9 Months Ended

Sep. 30, 2021

Asset Retirement Obligation Disclosure [Abstract]

Reclamation and mine closure costs are based principally on legal and regulatory requirements. Management estimates costs associated with reclamation of mining properties. On an ongoing basis, management evaluates its estimates and assumptions, and future expenditures could differ from current estimates.

Changes to the Company’s asset retirement obligations for its operating sites are as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
In thousands	2021		2020		2021		2020
Asset retirement obligation - Beginning	$	141,205	$	138,904	$	137,120	$	134,543
Accretion	2,984		2,924		8,769		8,591

Settlements	(1,406)		(930)		(3,106)		(2,236)
Asset retirement obligation - Ending	$	142,783	$	140,898	$	142,783	$	140,898

The Company accrued $2.0 million and $2.2 million at each of September 30, 2021 and December 31, 2020, respectively, for reclamation liabilities related to former mining activities, which are included in Reclamation.