Segment Reporting Summary Of Information Of Long-Lived Assets In Different Geographic Areas (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment	[1]	$ 513,020	$ 513,705
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment		174,307	169,301
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment		141,621	146,790
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment		5,694	3,320
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment		88,514	91,022
Spain
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment		102,577	103,121
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment		$ 307	$ 151

[1] Long-lived assets represent fixed assets, net of accumulated depreciation.