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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Income Tax Disclosure [Abstract]    
Other Tax Expense (Benefit) $ 3.1 $ 15.1
Gross unrecognized tax benefit 16.5  
Unrecognized tax benefit that would affect effective tax rate $ 15.5