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Financial Instruments - Additional Information (Details) - USD ($)
12 Months Ended
Sep. 28, 2024
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]    
Debt securities, available-for-sale, noncurrent $ 0  
Marketable securities 51,426,000 $ 0
Realized gain (loss) 0  
Accrued interest write-off $ 0