Property, Plant and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Text Block]

6. Property, Plant and Equipment, net

The components of property, plant and equipment, net were as follows:

	December 31, 2017			December 31, 2016
Land	$	68,476		$	68,575
Buildings and improvements	616,282			597,523
Machinery, equipment and other	1,919,113			1,802,832
Property, plant and equipment, gross	2,603,871			2,468,930
Total accumulated depreciation	(1,604,099		)	(1,523,260		)
Property, plant and equipment, net	$	999,772		$	945,670

Total depreciation expense was $191,285, $175,495 and $167,516 for the years ended December 31, 2017, 2016 and 2015, respectively.