Plant, Equipment and Timberlands - Summary of Plant, Equipment and Timberlands (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ (1,036,825)	$ (1,009,331)
Subtotal	633,831	636,429
Construction in progress	137,665	58,657
Asset retirement obligation, net		579
Timberlands, less depletion	4,402	3,199
Total	775,898	698,864	$ 697,608
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	192,877	205,338
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,335,669	1,305,067
Furniture, Fixtures, and Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 142,110	$ 135,355