Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and equipment consists of the following components (dollars in thousands):

	December 31, 2017		December 31, 2016
Land and land improvements	$	15,500	$	14,910
Building and building improvements	73,550		71,100
Machinery and equipment	303,880		281,180
	392,930		367,190
Less: Accumulated depreciation	202,680		188,030
Property and equipment, net	$	190,250	$	179,160

Depreciation Expense

Depreciation expense as included in the accompanying consolidated statement of operations is as follows (dollars in thousands):

	Year ended December 31,
	2017		2016		2015
Depreciation expense, included in cost of sales	$	24,950	$	21,620	$	19,730
Depreciation expense, included in selling, general and administrative expense	2,000		2,770		2,840
Total depreciation expense	$	26,950	$	24,390	$	22,570