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Retirement Plans (Summary of Net Pension and Supplemental Executive Retirement Plan Expense Recognized) (Details) - USD ($)
$ in Millions
 3 Months Ended
Apr. 01, 2023
Apr. 02, 2022
Retirement Benefits [Abstract]    
Service cost pertaining to benefits earned during the period $ 0.8 $ 1.3
Interest cost on projected benefit obligations 4.4 3.3
Expected return on pension assets (4.6) (5.1)
Net amortization loss (0.2) 2.8
Net pension expense $ 0.4 $ 2.3