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Retirement Plans (Notes)
 9 Months Ended
Sep. 28, 2024
Retirement Benefits [Abstract]  
Retirement Plans RETIREMENT PLANS
The following is a summary of net pension and Supplemental Executive Retirement Plan (“SERP”) expense recognized by the Company.
 Quarter EndedYear-To-Date Ended
(In millions)September 28,
2024		September 30,
2023		September 28,
2024		September 30,
2023
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 
The non-service cost components of net pension expense is recorded in the Other expense (income), net line item on the consolidated condensed statements of operations and comprehensive income.