Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Employee and retiree benefits	$ 132,638	$ 132,379
Credit and net operating loss carryforwards	186,062	183,594
Trademarks and other(2)	1,406	143,727
Amortizable R&D expenses(2)	4,040	56,091
Other, net	(2,783)	10,076
Gross deferred tax assets	321,363	525,867
Property, plant and equipment, net	(17,000)	(11,337)
Trademarks and other	(55,899)	(72,710)
Gross deferred tax liabilities	(72,899)	(84,047)
Valuation allowance	(152,752)	(339,395)
Total net deferred tax assets	$ 95,712	$ 102,425