Information by Segment and Geographic Area (Details 2) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	$ 469,900	$ 479,747	$ 490,255
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	135,086	120,555	125,386
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	89,503	95,569	90,288
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	36,960	54,704	62,597
All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	$ 208,351	$ 208,919	$ 211,984