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Segment Information (Narrative) (Details)
$ in Millions
12 Months Ended
Sep. 24, 2022
USD ($)
segment
Sep. 25, 2021
USD ($)
Sep. 26, 2020
USD ($)
Segment Reporting Information [Line Items]      
Number of operating segments | segment 1    
Fluid dairy [Member]      
Segment Reporting Information [Line Items]      
Sales eliminated in consolidation | $ $ 51.4 $ 46.5 $ 47.0