Property, Plant and Equipment

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

NOTE 9 - PROPERTY, PLANT AND EQUIPMENT

December 31,	2018			2017
(Dollars in thousands)
Land and buildings	$	140,471		$	136,918
Machinery and equipment		769,451			720,175
Leasehold improvements and others		12,883			12,192
Construction in progress		67,559			58,753
		990,364			928,038
Accumulated depreciation		(457,597	)		(391,352	)
Property, plant and equipment, net	$	532,767		$	536,686

Depreciation expense was $68.8 million, $54.2 million and $34.3 million for the years ended December 31, 2018, 2017 and 2016, respectively.