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Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 28, 2020
Dec. 28, 2019
Mar. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Unsecured Debt $ 1,020.0 $ 397.5 $ 628.3
Derivative, Fair Value, Net $ (6.8) $ 0.3 $ 3.9