Commitments, Contingencies and Legal Proceedings (Tables)

12 Months Ended

Dec. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

Summary of Minimum Annual Payment Due on Noncancelable Operating Lease

The following table summarizes the minimum annual payments due on noncancelable operating leases and other similar contractual obligations having initial or remaining terms in excess of one year:

In thousands	Leases		Other
2021	$	4,736	$	91,806
2022		3,277		12,304
2023		1,568		—
2024		1,005		—
2025		726		—
Thereafter		3,620		—

Schedule of Reserves

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

GLATFELTER 2020 FORM 10-K 59

	Year ended December 31
In thousands		2020			2019
Balance at January 1,	$	21,870		$	45,001
Payments		(3,622	)		(20,805	)
Reserve adjustment		—			(2,509	)
Accretion		207		183
Balance at December 31,	$	18,455		$	21,870