Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 27, 2015

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment are as follows (in thousands):

	June 27, 2015			December 27, 2014
Land and land improvements	$	13,982		$	13,982
Buildings and building improvements	103,029			101,407
Machinery and equipment	618,312			623,619
Furniture and fixtures	9,580			10,086
Construction in progress	17,565			13,154
	762,468			762,248
Accumulated depreciation	(491,526		)	(479,840		)
	$	270,942		$	282,408