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Reclamation

3 Months Ended

Mar. 31, 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 March 31,
In thousands		2021		2020
Asset retirement obligation - Beginning		$	137,120	$	134,543
Accretion		2,863		2,804

Settlements		(629)		(719)
Asset retirement obligation - Ending		$	139,354	$	136,628

The Company accrued $2.1 million and $1.9 million at each of March 31, 2021 and March 31, 2020, respectively, for reclamation liabilities related to former mining activities, which are included in Reclamation.