Debt (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Long term debt and capital lease obligations

	September 30, 2020				December 31, 2019
In thousands	Current		Non-Current		Current		Non-Current
2024 Senior Notes, net(1)	$	—	$	227,414	$	—	$	226,885
Revolving Credit Facility(2)	—		20,000		—		—
Finance lease obligations	23,265		30,459		22,746		45,866
	$	23,265	$	277,873	$	22,746	$	272,751

(1) Net of unamortized debt issuance costs of $2.6 million and $3.1 million at September 30, 2020 and December 31, 2019, respectively.

(2) Unamortized debt issuance costs of $1.7 million and $2.3 million at September 30, 2020 and December 31, 2019, respectively, included in Other Non-Current Assets.

Interest expenses incurred for various debt instruments

Interest Expense

	Three Months Ended September 30,				Nine Months Ended September 30,
In thousands	2020		2019		2020		2019
2024 Senior Notes	$	3,378	$	3,563	$	10,134	$	10,907
Revolving Credit Facility	767		963		2,520		4,769
Finance lease obligations	927		1,210		2,852		3,459
Amortization of debt issuance costs	372		378		1,143		1,110
Accretion of Silvertip contingent consideration	—		182		—		541
Other debt obligations	45		58		261		60
Capitalized interest	(393)		(374)		(921)		(1,587)
Total interest expense, net of capitalized interest	$	5,096	$	5,980	$	15,989	$	19,259