Inventories (Tables)

6 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

The following table summarizes the components of inventory:

	June 30, 2016		December 31, 2015
Raw materials and supplies	$	76,831	$	76,680
Work in process	32,331		33,721
Finished goods	82,519		88,901
Total inventories, net	$	191,681	$	199,302