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Pension Settlement (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Oct. 01, 2023
Jul. 02, 2023
Apr. 02, 2023
Sep. 25, 2022
Jul. 02, 2023
Oct. 01, 2023
Sep. 25, 2022
US              
Defined Benefit Plan Disclosure [Line Items]              
Pension charge   $ (0.2) $ 9.2   $ 9.0    
Pension charge, cash   $ 2.1 2.3        
Derecognition of pension liability     $ 6.9        
United Kingdom              
Defined Benefit Plan Disclosure [Line Items]              
Defined benefit pension credit $ 0.3     $ 0.3   $ 1.0 $ 1.0