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Retirement Plans (Summary of Net Pension and Supplemental Executive Retirement Plan Expense Recognized) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Retirement Benefits [Abstract]
Service cost pertaining to benefits earned during the period	$ 0.5	$ 0.7
Interest cost on projected benefit obligations	4.2	4.4
Expected return on pension assets	(4.5)	(4.9)
Defined Benefit Plan, Amortization of Gain (Loss)	(0.4)	(0.4)
Net pension income	$ (0.2)	$ (0.2)

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Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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