Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

(Dollars in thousands)	2015			2014
Land and land improvements	$	18,194		$	18,374
Buildings and structures	36,364			36,174
Machinery and equipment	193,968			176,085
Construction in progress	224			5,878
	248,750			236,511
Less: accumulated depreciation	(173,465		)	(170,762		)
Total property, plant and equipment, net	$	75,285		$	65,749