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Income Taxes - Reconciliation of Beginning and Ending Amount of Uncertain Tax Positions Excluding Interest and Penalties (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Dec. 30, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance $ 3.2 $ 3.2 $ 3.9
Gross decreases - tax position in prior period 0.0 0.0 0.0
Gross increases - current-period tax positions 0.1 0.1 0.1
Settlements 0.0 0.0 0.0
Lapse of statute of limitations (0.3) (0.1) (0.8)
Foreign exchange (0.1) 0.0 0.0
Ending balance $ 2.9 $ 3.2 $ 3.2