Financial Instruments and Risk Management (Tables)

12 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Fair value of the Partnership's derivative instruments and their location in the condensed consolidated balance sheets

The following summarizes the fair value of the Partnership’s derivative instruments and their location in the consolidated balance sheets as of September 30, 2023 and September 24, 2022, respectively:

	As of September 30, 2023			As of September 24, 2022
Asset Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as hedging    instruments:
Commodity-related derivatives	Other current assets	$	18,538	Other current assets	$	18,263
	Other assets		8	Other assets		16,430
		$	18,546		$	34,693
Liability Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as hedging    instruments:
Commodity-related derivatives	Other current liabilities	$	2,427	Other current liabilities	$	16,957
	Other liabilities		4,784	Other liabilities		1,895
		$	7,211		$	18,852

Reconciliation of the beginning and ending balances of assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs

The following summarizes the reconciliation of the beginning and ending balances of assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs:

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
	Fiscal 2023						Fiscal 2022
	Assets			Liabilities			Assets			Liabilities
Beginning balance of over-the-counter options	$	222		$	3,408		$	4,626		$	451
Beginning balance realized during the period		(194	)		(2,475	)		(4,626	)		(219	)
Contracts purchased during the period		—			—			222			3,295
Change in the fair value of outstanding contracts		(28	)		(127	)		—			(119	)
Ending balance of over-the-counter options	$	—		$	806		$	222		$	3,408

Effect of the Partnership's derivative instruments on the condensed consolidated statements of operations

The effect of the Partnership’s derivative instruments on the consolidated statements of operations for fiscal 2023, 2022 and 2021 are as follows:

	Unrealized Gains (Losses) Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount
Commodity-related derivatives:
Fiscal 2023	Cost of products sold	$	(3,671	)
Fiscal 2022	Cost of products sold	$	(27,929	)
Fiscal 2021	Cost of products sold	$	43,121

Fair value of the Partnership's recognized derivative assets and liabilities on a gross basis and amounts offset on the condensed consolidated balance sheets

The following table presents the fair value of the Partnership’s recognized derivative assets and liabilities on a gross basis and amounts offset on the consolidated balance sheets subject to enforceable master netting arrangements or similar agreements:

	As of September 30, 2023
						Net amounts
						presented in the
	Gross amounts		Effects of netting			balance sheet
Asset Derivatives
Commodity-related derivatives	$	35,339	$	(16,793	)	$	18,546
	$	35,339	$	(16,793	)	$	18,546
Liability Derivatives
Commodity-related derivatives	$	24,004	$	(16,793	)	$	7,211
	$	24,004	$	(16,793	)	$	7,211

	As of September 24, 2022
						Net amounts
						presented in the
	Gross amounts		Effects of netting			balance sheet
Asset Derivatives
Commodity-related derivatives	$	117,260	$	(82,567	)	$	34,693
	$	117,260	$	(82,567	)	$	34,693
Liability Derivatives
Commodity-related derivatives	$	101,419	$	(82,567	)	$	18,852
	$	101,419	$	(82,567	)	$	18,852