Property Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

The components of property, plant and equipment, net were as follows at December 31, 2017 and 2016 (in thousands):

	2017			2016
Land	$	11,520		$	7,883
Building and leasehold improvements	115,270			114,522
Machinery and equipment	261,723			256,742
Total property, plant and equipment	388,513			379,147
Less - accumulated depreciation	(265,415		)	(249,265		)
Property, plant and equipment, net	$	123,098		$	129,882