Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Accumulated depreciation	$ (70,969)	$ (67,260)
Property, plant and equipment, net	84,422	86,517
Land [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	14,950	14,950
Buildings [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	69,577	68,941
Machinery, Equipment and Fixtures [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	65,982	60,787
Construction in Progress [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 4,882	$ 9,099