Property, Plant and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment as of December 31, 2017 and 2016 consisted of the following:

	December 31
	2017			2016
	(In thousands)
Land	$	175,243		$	174,323
Buildings	677,827			673,687
Leasehold improvements	83,366			82,284
Machinery and equipment	1,867,168			1,921,436
Construction in progress	29,952			24,362
	2,833,556			2,876,092
Less accumulated depreciation	(1,739,492		)	(1,712,241		)
Total	$	1,094,064		$	1,163,851

Depreciation expense amounted to $145.1 million, $151.9 million and $149.7 million during the years ended December 31, 2017, 2016 and 2015, respectively.

There was no material interest capitalized during the years ended December 31, 2017 and 2016.

See Note 16 for information regarding property, plant and equipment write-downs incurred in conjunction with our restructuring plans and certain other events.