Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Summary of Carrying Values of Property, Plant and Equipment

The carrying values of property, plant and equipment were as follows:

	December 31,
	2015			2014
	(In thousands)
Land and land improvements	$	29,235		$	31,879
Buildings and leasehold improvements		135,154			131,534
Machinery and equipment		483,773			472,543
Computer equipment and software		112,888			96,546
Construction in process		28,274			33,726
Gross property, plant and equipment		789,324			766,228
Accumulated depreciation		(478,695	)		(449,843	)
Net property, plant and equipment	$	310,629		$	316,385