Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 990,364	$ 928,038
Accumulated depreciation	(457,597)	(391,352)
Property, plant and equipment, net	532,767	536,686
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	140,471	136,918
Production Machinery and Technical Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	769,451	720,175
Leasehold Improvements and Others [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	12,883	12,192
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 67,559	$ 58,753