Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant, and Equipment

(in thousands)	2015	2014	Estimated useful life
Land and land improvements	$14,307	$22,967	25 years for improvements
Buildings	211,027	225,094	25 to 40 years
Machinery and equipment	828,409	892,171	10 years
Furniture and fixtures	6,074	6,716	5 years
Computer and other equipment	14,813	13,692	3 to 10 years
Software	52,503	50,586	5 to 8 years
Capital expenditures in progress	26,291	48,593
Property, plant and equipment, gross	1,153,424	1,259,819
Accumulated depreciation and amortization	(795,954)	(864,706)
Property, plant and equipment, net	$357,470	$395,113