Property, Plant and Equipment, Net (Tables)

9 Months Ended

Sep. 30, 2015

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

Property, plant and equipment, net, consisted of the following: 

	At September 30,						At December 31,
(in thousands)	2015			2014			2014
Land	$	28,899		$	29,624		$	29,390
Buildings and site improvements	172,300			174,343			175,058
Leasehold improvements	5,593			5,404			5,602
Machinery, equipment, and software	231,467			230,534			228,440
	438,259			439,905			438,490
Less accumulated depreciation and amortization	(255,431		)	(246,287		)	(245,383		)
	182,828			193,618			193,107
Capital projects in progress	20,057			12,516			13,920
	$	202,885		$	206,134		$	207,027