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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) - Fair Value, Inputs, Level 3 [Member] - USD ($)
$ in Thousands
9 Months Ended
Jun. 24, 2023
Jun. 25, 2022
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 $ 222 $ 4,626
Beginning balance realized during the period (132) (4,626)
Contracts purchased during the period 0 654
Change in the fair value of outstanding contracts (90) 0
Ending balance of over-the-counter options 0 654
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 3,408 451
Beginning balance realized during the period (1,611) (78)
Contracts purchased during the period 0 2,378
Change in the fair value of outstanding contracts (863) (280)
Ending balance of over-the-counter options $ 2,660 $ 2,471