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Goodwill and Intangible Assets - Future Estimated Amortization Expense (Detail)
$ in Millions
Dec. 27, 2019
USD ($)
Finite Lived Intangible Assets Future Amortization Expense [Abstract]  
2020 $ 19.8
2021 19.6
2022 19.3
2023 14.2
2024 14.0
Thereafter 84.4
Definite lives intangible assets, net carrying amount $ 171.3