Property, Plant and Equipment, Net

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, Net

Property, Plant and Equipment, Net

Property, plant and equipment as of December 31, 2016 and 2015 were as follows:

	Estimated Useful Lives	December 31,
In thousands		2016			2015
Land	–	$	3,981		$	2,636
Buildings and improvements	10-35 years	74,397			55,887
Machinery and equipment	5-25 years	226,675			195,125
Office equipment	2-8 years	31,504			30,622
Vehicles	3-6 years	1,553			864
Assets under capital leases:
Land	–	226			546
Buildings and improvements	10-35 years	4,806			4,798
		343,142			290,478
Accumulated depreciation		(196,251		)	(185,356		)
Accumulated amortization of capital leases		(2,915		)	(2,829		)
		143,976			102,293
Construction in progress		16,819			12,140
Total property, plant and equipment, net		$	160,795		$	114,433

Depreciation expense was $17.8 million in 2016, $16.4 million in 2015, and $16.7 million in 2014.