Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 546,212	$ 497,837
Less - accumulated depreciation	227,244	219,395
Property, plant and equipment, net	318,968	278,442	$ 121,089
Land Owned [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	30,884	7,548
Land under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	1,340	2,097
Buildings and Improvements Owned [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 61,142	52,641
Buildings and Improvements Owned [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	15 years
Buildings and Improvements Owned [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	40 years
Buildings under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	20 years
Property, plant and equipment, Gross	$ 3,956	6,225
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 432,841	408,299
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	12 years
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 16,049	$ 21,027