Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2021

Property, Plant and Equipment [Abstract]

Summary of property, plant and equipment and depreciation expense

Property, plant and equipment consist of the following:

	June 30, 2021		December 31, 2020
	(In thousands)
Land	$	219,127	$	221,304
Buildings and improvements	1,639,368		1,625,355
Machinery and equipment	6,109,777		5,736,797
Finance lease assets	81,582		40,856
Software and computer equipment	230,312		231,171
Furniture, fixtures and other equipment	20,829		20,774
Construction in progress	125,194		48,602
Total property, plant and equipment	8,426,189		7,924,859
Accumulated depreciation and amortization	(5,552,619)		(5,358,857)
Total property, plant and equipment, net	$	2,873,570	$	2,566,002

The following table summarizes our depreciation expense:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2021		2020		2021		2020
	(In thousands)
Depreciation expense	$	139,445	$	124,224	$	274,677	$	247,725