Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consists of the following:

December 31,	2019			2018
(dollars in thousands)
Land and land improvements	$	7,847		$	7,543
Buildings		50,974			50,607
Machinery and equipment		281,008			269,034
Construction in progress		9,441			7,184
Gross property, plant and equipment		349,270			334,368
Accumulated depreciation		(173,209	)		(156,524	)
Property, plant and equipment, net	$	176,061		$	177,844