Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 380,596	$ 350,049
Less: accumulated depreciation	(209,240)	(184,521)
Property, plant and equipment, net	186,390	179,793
Buildings and Related Structures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	65,385	64,939
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	279,614	255,618
Others [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	35,597	29,492
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 15,034	$ 14,265