Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments

Approximate future minimum lease payments under noncancelable leases are:

	Payments due by period
In thousands	Operating Lease Payments		Capital Lease Payments			Total
2018	$	4,829	$	283		$	5,112
2019	3,842		292			4,134
2020	2,934		36			2,970
2021	1,981		—			1,981
2022	1,877		—			1,877
Thereafter	10,341		—			10,341
Total	25,804		611			26,415
Interest on capital leases	—		(9		)	(9		)
Total	$	25,804	$	602		$	26,406