PROPERTY, PLANT AND EQUIPMENT

6 Months Ended

Jun. 30, 2019

Property, Plant and Equipment [Abstract]

A summary of property, plant and equipment as of June 30, 2019 and December 31, 2018 is as follows (in thousands):



	June 30, 2019			December 31, 2018
	(unaudited)
Land	$	6,386		$	6,376
Buildings and leasehold improvements	58,788			57,006
Machinery and equipment	275,460			269,084
Furniture and fixtures	10,706			10,253
Capitalized Enterprise Resource Planning system development costs	46,637			46,637
Computers and computer software	17,463			15,826
Automobiles	4,728			4,879
Construction in progress	11,896			6,550
Total	432,064			416,611
Accumulated depreciation and amortization	(239,245		)	(221,817		)
Property, plant and equipment, net	$	192,819		$	194,794

Included in the table above are assets under finance leases of $5.3 million and $5.2 million as of June 30, 2019 and December 31, 2018, respectively, net of accumulated amortization. Depreciation expense for the three months ended June 30, 2019 and 2018 was $8.7 million and $8.8 million, respectively. Depreciation expense for the six months ended June 30, 2019 and 2018 was $17.3 million and $18.1 million, respectively. Construction in progress contains certain internal use software costs that have yet to be fully implemented.