Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Summary of property, plant and equipment

Following is a summary of property, plant and equipment:

	December 31, 2017		December 31, 2016
Land	$	385,027	288,633
Buildings and improvements	1,413,877		1,189,408
Machinery and equipment	4,603,911		3,979,349
Furniture and fixtures	211,730		236,183
Leasehold improvements	78,803		77,976
Construction in progress	792,936		472,226
	7,486,284		6,243,775
Less accumulated depreciation and amortization	3,215,494		2,873,427
Net property, plant and equipment	$	4,270,790	3,370,348