Information by Segment and Geographic Area (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	$ 1,451,223	$ 1,723,092	$ 2,066,288
Property, plant and equipment, net	490,255	564,035	663,244
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	614,327	758,820	880,884
Property, plant and equipment, net	125,386	142,506	151,397
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	156,552	217,011	257,885
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	90,288	97,305	102,842
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	62,597	57,381	69,515
All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	680,344	747,261	927,519
Property, plant and equipment, net	$ 211,984	$ 266,843	$ 339,490