Land Use Rights - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 1,460	$ 1,460	$ 1,496
Land use rights, net	2,713	45,275
Disposal Group, Held-for-sale, Not Discontinued Operations
Finite-Lived Intangible Assets [Line Items]
Land use rights, net	43,600
EMEAA
Finite-Lived Intangible Assets [Line Items]
Land use rights, net	1,141	43,766
Mexico
Finite-Lived Intangible Assets [Line Items]
Land use rights, net	$ 1,572	$ 1,509
Minimum
Finite-Lived Intangible Assets [Line Items]
Land use rights term	20 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Land use rights term	29 years