Commitments, Contingencies and Legal Proceedings (Tables)

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Schedule of Reserves

Our reserve for past and future government oversight costs and long-term monitoring and maintenance is set forth below:

	Nine months ended September 30,
In thousands	2021		2020
Balance at January 1,	$	18,455	$	21,870
Payments	(1,780)		(3,243)
Accretion	152		155
Balance at September 30,	$	16,827	$	18,782