Property, Plant and Equipment

12 Months Ended

Dec. 30, 2017

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT

A summary of property, plant and equipment follows (in thousands):

	December 30, 2017			December 31, 2016
Land	$	165,847		$	152,949
Buildings and improvements	513,078			464,957
Machinery and equipment	1,617,008			1,385,694
Vehicles	229,995			204,995
Aircraft	13,504			13,504
Construction in process	181,838			135,662
	2,721,270			2,357,761
Accumulated depreciation	(1,075,448		)	(842,186		)
	$	1,645,822		$	1,515,575