Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2018

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment were comprised of the following:

	March 31, 2018			December 31, 2017
Land and land improvements	$	12,140		$	12,172
Buildings		68,845			68,572
Machinery and equipment		343,236			340,396
Construction-in-process		5,908			5,019
Other		7,204			7,193
		437,333			433,352
Accumulated depreciation and amortization		(224,374	)		(218,372	)
Property, plant and equipment, net	$	212,959		$	214,980