Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

		2016		2015
Land	$	14,826	$	17,054
Improvements to land and leaseholds		17,408		16,590
Buildings		33,910		39,366
Machinery and equipment, including equipment under capitalized leases		118,060		118,677
Construction in progress		1,291		11,844
		185,495		203,531
Less accumulated depreciation and amortization, including accumulated amortization of capitalized leases		81,522		76,786
	$	103,973	$	126,745