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Income Taxes - Reconciliation of Company's Effective Tax Rate to U.S. Federal Statutory Rate (Detail)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
U.S. Federal income tax statutory rate 35.00% 35.00% 35.00%
Federal tax credits (0.70%) (1.80%) (1.20%)
State income taxes, net of federal benefit 1.00% 0.80% 1.30%
Effect of foreign operations taxed at various rates (12.10%) (12.70%) (6.40%)
Qualified production activity tax benefit (1.40%) (2.90%) (1.60%)
Transition tax, net of foreign tax credits 6.40%    
Revaluation of US deferred income taxes (5.00%)    
Stock based compensation (2.50%)    
Deferred tax asset valuation allowance (0.10%) 2.10%  
Release of income tax reserves (including interest) (0.40%) (2.40%) (4.80%)
Foreign dividends, net of foreign tax credits 3.30% (2.20%) 0.70%
Acquisition and integration related costs   1.50%  
Other 0.70% 0.70% 0.30%
Total 24.20% 18.10% 23.30%