Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Accumulated depreciation	$ (67,533)	$ (61,432)
Property, plant and equipment, net	92,393	96,014
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	68,858	67,571
Machinery, Equipment and Fixtures [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	63,343	65,179
Construction in Progress [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 12,775	$ 9,746