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Financial Instruments and Risk Management - Reconciliation of the Beginning and Ending Balances of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details) - USD ($)
$ in Thousands
6 Months Ended
Mar. 26, 2022
Mar. 27, 2021
Reconciliation of beginning and ending balances of assets measured at fair value on recurring basis using significant unobservable inputs [Rollforward]    
Beginning balance of over-the-counter options $ 4,626 $ 0
Beginning balance realized during the period (4,615) 0
Contracts purchased during the period 0 750
Change in the fair value of outstanding contracts (11) 0
Ending balance of over-the-counter options 0 750
Reconciliation of beginning and ending balances of liabilities measured at fair value on recurring basis using significant unobservable inputs [Rollforward]    
Beginning balance of over-the-counter options (451) 0
Beginning balance realized during the period 11 0
Contracts purchased during the period 0 0
Change in the fair value of outstanding contracts 346 0
Ending balance of over-the-counter options $ (94) $ 0