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POSTRETIREMENT AND POSTEMPLOYMENT BENEFITS - Net Period Postretirement Cost (Benefit) Components for Postretirement Plans (Details) - Postemployment Retirement Benefits - USD ($)
$ in Thousands
 12 Months Ended
Sep. 29, 2024
Sep. 24, 2023
Sep. 25, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost for benefits earned during the year $ 50 $ 68 $ 108
Interest cost on projected benefit obligation 596 598 340
Expected return on plan assets (1,279) (1,182) (1,053)
Amortization of net (gain) loss (1,234) (1,014) (994)
Amortization of prior service benefit (375) (647) (647)
Curtailment gain (1,184) 0 0
Net periodic pension cost (benefit) $ (3,426) $ (2,177) $ (2,246)