Retirement Plans (Summary of Net Pension and Supplemental Executive Retirement Plan Expense Recognized) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Retirement Benefits [Abstract]
Service cost pertaining to benefits earned during the period	$ 0.7	$ 0.7	$ 2.1	$ 2.3
Interest cost on projected benefit obligations	4.5	4.4	13.4	13.3
Expected return on pension assets	(4.9)	(4.6)	(14.7)	(13.9)
Net amortization loss	(0.5)	(0.1)	(1.3)	(0.5)
Net pension expense (income)	$ (0.2)	$ 0.4	$ (0.5)	$ 1.2