Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Summary of Property, plant and equipment

Property, plant and equipment consist of the following:

	June 30, 2017			December 31, 2016
	(In thousands)
Land	$	225,048		$	240,719
Land use rights	26,845			26,845
Buildings and improvements	1,375,059			1,362,007
Machinery and equipment	4,732,833			4,483,523
Software and computer equipment	197,255			205,969
Furniture, fixtures and other equipment	15,432			21,313
Construction in progress	85,082			87,037
Total property, plant and equipment	6,657,554			6,427,413
Accumulated depreciation and amortization	(4,011,744		)	(3,862,765		)
Total property, plant and equipment, net	$	2,645,810		$	2,564,648

The following table summarizes our depreciation expense:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2017		2016		2017		2016
	(In thousands)
Depreciation expense	$	144,839	$	137,451	$	286,295	$	273,959