Environmental Costs (Tables)

12 Months Ended

Dec. 31, 2020

Environmental Remediation Obligations [Abstract]

Schedule of change in environmental remediation

The following table displays the activity and balances associated with accruals related to environmental costs included in other current liabilities and other long-term liabilities:

	2020		2019
In thousands
Balance at January 1	$	6,078	$	5,531
Net additions to accrual	141		1,122
Payments	(165)		(569)
Changes in foreign currency exchange rates	(5)		(6)
Balance at December 31	$	6,049	$	6,078

Schedule of future payments for environmental remediation

The following represents estimated future payments for the undiscounted environmental remediation liability related to the Bloomfield campus as of December 31, 2020:

In thousands
2021	$	700
2022	151
2023	184
2024	387
2025	—
Thereafter	4,883
Total	$	6,305