Property, Plant and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

(4) Property, Plant and Equipment

The components of property, plant and equipment at December 31 were as follows (in thousands):

	2016			2015
Land	$	2,404		$	2,488
Buildings		88,201			79,182
Machinery and other equipment		221,325			223,561
Computer equipment		70,110			57,338
Software		54,451			38,517
		436,491			401,086
Accumulated depreciation		(295,173	)		(295,576	)
	$	141,318		$	105,510

Depreciation and amortization expense related to property, plant and equipment was $37,299, $38,185 and $40,890 for the years ended December 31, 2016, 2015 and 2014, respectively.