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Income Taxes - Income Before Income Taxes (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Dec. 30, 2016
Income Tax Disclosure [Abstract]      
U.S. $ 11.9 $ 31.1 $ 16.0
Non-U.S. (11.7) 113.0 221.4
Income before income taxes $ 0.2 $ 144.1 $ 237.4