Property, Plant & Equipment, Net

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Property, Plant & Equipment, Net

6. Property, Plant & Equipment, Net

Property, plant & equipment, net, consisted of the following:

	June 30,			December 31,
(in thousands)	2017			2016
Land	$	14,950		$	14,950
Buildings		70,934			70,628
Machinery, equipment and fixtures		67,135			65,407
Computer software		18,488			18,482
Construction in progress		11,603			7,224
		183,110			176,691
Less: accumulated depreciation and amortization		(91,247	)		(82,504	)
Total property, plant & equipment, net	$	91,863		$	94,187

Depreciation and amortization expense related to property, plant & equipment, net, was $4.0 million and $2.8 million for the three months ended June 30, 2017 and 2016, respectively, and $9.1 million and $5.3 million for the six months ended June 30, 2017 and 2016, respectively.

Property, plant & equipment dedicated to research and development (“R&D”) activities had a carrying value of $2.0 million as of June 30, 2017. The Company believes these assets will be utilized for either internally funded ongoing R&D activities or R&D activities funded by a strategic partner.