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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, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
U.S. Federal income tax statutory rate	35.00%	35.00%	35.00%
Federal tax credits	(1.20%)	(1.00%)	(1.80%)
State income taxes, net of federal benefit	1.30%	2.00%	1.30%
Effect of foreign operations taxed at various rates	(6.40%)	(7.30%)	0.30%
Qualified production activity tax benefit	(1.60%)	(1.80%)	(1.40%)
Deferred tax asset valuation allowance		(0.50%)	(0.70%)
Release of income tax reserves (including interest)	(4.80%)	(10.70%)
Foreign dividends, net of foreign tax credits	0.70%	(1.00%)
Income tax charges on accumulated foreign earnings			10.90%
Tax benefit related to reinstatement of tax incentives			(4.00%)
Other	0.30%	0.40%	0.10%
Total	23.30%	15.10%	39.70%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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