Financial Instruments and Risk Management - Effect of the Partnership's Derivative Instruments on the Condensed Consolidated Statements of Operations (Details) - Commodity-Related Derivatives [Member] - Derivatives Not Designated as Hedging Instruments [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2024	Mar. 25, 2023	Mar. 30, 2024	Mar. 25, 2023
Derivative Instruments Gain Loss [Line Items]
Unrealized Gains (Losses) Recognized in Income	$ 5,868	$ (4,501)	$ (4,918)	$ (18,207)
Cost of Products Sold [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Costs and Expenses	Costs and Expenses	Costs and Expenses	Costs and Expenses