Financial Instruments and Risk Management (Tables)

3 Months Ended

Dec. 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 condensed consolidated balance sheets as of December 30, 2023 and September 30, 2023, respectively:

	As of December 30, 2023			As of September 30, 2023
Asset Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as    hedging instruments:
Commodity-related derivatives	Other current assets	$	2,345	Other current assets	$	18,538
	Other assets		—	Other assets		8
		$	2,345		$	18,546
Liability Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as    hedging instruments:
Commodity-related derivatives	Other current liabilities	$	3,118	Other current liabilities	$	2,427
	Other liabilities		—	Other liabilities		4,784
		$	3,118		$	7,211

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)
	Three Months Ended					Three Months Ended
	December 30, 2023					December 24, 2022
	Assets		Liabilities			Assets			Liabilities
Beginning balance of over-the-counter options	$	—	$	806		$	222		$	3,408
Beginning balance realized during the period		—		(613	)		(46	)		(298	)
Contracts purchased during the period		—		—			—			—
Change in the fair value of outstanding contracts		—		25			(65	)		308
Ending balance of over-the-counter options	$	—	$	218		$	111		$	3,418

Effect of the Partnership's Derivative Instruments on the Condensed Consolidated Statements of Operations

The effect of the Partnership’s derivative instruments on the condensed consolidated statements of operations for the three months ended December 30, 2023 and December 24, 2022 are as follows:

	Three Months Ended December 30, 2023				Three Months Ended December 24, 2022
Derivatives Not Designated as Hedging Instruments	Unrealized Gains (Losses)  Recognized in Income				Unrealized Gains (Losses) Recognized in Income
	Location	Amount			Location	Amount
Commodity-related derivatives	Cost of products sold	$	(10,786	)	Cost of products sold	$	(13,706	)

Fair Value of Partnership's Recognized Derivative Assets and Liabilities on a Gross Basis and Amounts Offset on 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 condensed consolidated balance sheets subject to enforceable master netting arrangements or similar agreements:

	As of December 30, 2023							As of September 30, 2023
						Net amounts							Net amounts
						presented in the							presented in the
	Gross amounts		Effects of netting			balance sheet		Gross amounts		Effects of netting			balance sheet
Asset Derivatives
Commodity-related derivatives	$	7,047	$	(4,702	)	$	2,345	$	35,339	$	(16,793	)	$	18,546
Liability Derivatives
Commodity-related derivatives	$	7,820	$	(4,702	)	$	3,118	$	24,004	$	(16,793	)	$	7,211

Fair Value of the Partnership's Senior Notes

The fair values of the Senior Notes are based upon quoted market prices (a Level 1 input) and the fair value of the Green Bonds is based upon a valuation model (a Level 3 input). Senior Notes, Revolving Credit Facility and Green Bonds are defined below in Note 10 (“Long-Term Borrowings”) and the fair values of the Senior Notes and Green Bonds are as follows:

	As of
	December 30,		September 30,
	2023		2023
5.875% Senior Notes due March 1, 2027	$	349,125	$	334,250
5.00% Senior Notes due June 1, 2031		586,918		541,658
5.50% Green Bonds due October 1, 2028 through October 1, 2033		66,131		63,031
	$	1,002,174	$	938,939