Property, Plant and Equipment - Summary of Property Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 1,199,443	$ 1,105,891
Accumulated depreciation	(434,074)	(389,878)
Property, Plant and Equipment, Net, Total	765,369	716,013
Land and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	71,079	80,638
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	237,499	222,825
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	760,250	669,030
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 130,615	$ 133,398
Minimum [Member] | Land and improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years
Minimum [Member] | Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years
Minimum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	5 years
Maximum [Member] | Land and improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	25 years
Maximum [Member] | Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	40 years
Maximum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years