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Business Combinations (Schedule Of Estimated Future Amortization Expense) (Detail) - USD ($)
$ in Millions
Apr. 02, 2021
Jan. 01, 2021
Business Combinations [Abstract]    
2021 (Remaining) $ 104.1  
2022 118.1  
2023 105.6  
2024 80.0  
2025 45.8  
Thereafter 89.4  
Total $ 543.0 $ 580.1