Income Taxes - Reconciliation of U.S. Statutory Income Tax Rate to Our Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
U.S. statutory income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal deduction	(2.40%)	0.70%	0.80%
Tax impact of foreign operations, including foreign tax credits	(40.20%)	(11.70%)	(12.10%)
Change in valuation allowance	(3.70%)
Non-deductible expenses	2.40%
Tax impact of certain significant transactions	21.60%	1.40%	1.60%
Tax benefit relating to U.S. manufacturer's deduction and export sales	(6.20%)	(1.90%)	(1.80%)
R&D credit	(2.50%)	(0.20%)	(0.60%)
Other	0.60%	0.10%	(0.10%)
Effective income tax rate	4.60%	23.40%	22.80%