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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 02, 2016
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Income Tax Contingency [Line Items]        
Effective income tax rate 31.50% 40.20% 30.00% 40.70%
Reversal in valuation allowance related to tax benefits for foreign losses $ 2.5   $ 2.5