Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment, at cost

 Property, plant and equipment, at cost, consisted of the following (in thousands):

	September 30, 2018			December 31, 2017
Land	$	26,652		$	68,562
Buildings and leasehold improvements		201,834			205,534
Machinery and equipment		456,945			466,325
		685,431			740,421
Less: Accumulated depreciation		(395,611	)		(367,954	)
Total property, plant and equipment, net	$	289,820		$	372,467