Property, Plant and Equipment, net

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Property, plant and equipment consisted of the following:



	December 31,
(in thousands)	2015			2014
Land	$	28,698		$	29,390
Buildings and site improvements	171,890			175,058
Leasehold improvements	5,560			5,602
Machinery and equipment	232,560			228,440
	438,708			438,490
Less accumulated depreciation and amortization	(257,115		)	(245,383		)
	181,593			193,107
Capital projects in progress	32,123			13,920
	$	213,716		$	207,027

Included in property, plant and equipment at December 31, 2015 and 2014, are fully depreciated assets with an original cost of $156.7 million and $161.1 million, respectively. These fully depreciated assets are still in use in the Company’s operations.

In December 2015, the Company purchased for $12.6 million a manufacturing facility in West Chicago for the purposes of combining the operations of its two leased chemical facilities into one owned facility. The Company estimates 2016 costs to complete improvements to operate out of the new facility will be $7.0 million to $10.0 million.

The Company capitalizes certain development costs associated with internal use software, including external direct costs of materials and services and payroll costs for employees devoting time to a software project. As of December 31, 2015 and 2014, depreciable capitalized software development costs were $1.6 million and $1.8 million, respectively, and included in capital projects in progress at December 31, 2015 and 2014, were software in development costs of $12.2 million and $8.3 million, respectively. Costs incurred during the preliminary project stage, as well as costs for maintenance and training, are expensed as incurred.

Depreciation expense was $20.4 million for both years ended December 31, 2015 and 2014,and was $20.1 million for the year ended December 31, 2013.