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Retirement Plans (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Jun. 28, 2024
Sep. 26, 2025
Sep. 27, 2024
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]      
Document Period End Date   Sep. 26, 2025  
Retirement plan expenses $ 24,925 $ 24,739 $ 24,558