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Intangible Assets - Estimated Amortization Expense for Intangible Assets (Detail) - USD ($)
$ in Millions
Dec. 29, 2018
Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
2019 $ 66.4  
2020 57.8  
2021 49.7  
2022 41.0  
2023 34.6  
Thereafter 182.9  
Total $ 432.4 $ 462.5