Financial Instruments and Risk Management (Tables)

9 Months Ended

Jun. 26, 2021

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 June 26, 2021 and September 26, 2020, respectively:

	As of June 26, 2021			As of September 26, 2020
Asset Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as    hedging instruments:
Commodity-related derivatives	Other current assets	$	26,076	Other current assets	$	1,066
	Other assets		532	Other assets		461
		$	26,608		$	1,527
Liability Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as    hedging instruments:
Commodity-related derivatives	Other current liabilities	$	6,049	Other current liabilities	$	2,684
	Other liabilities		1,013	Other liabilities		—
		$	7,062		$	2,684

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)
	Nine Months Ended				Nine Months Ended
	June 26, 2021				June 27, 2020
	Assets		Liabilities		Assets			Liabilities
Beginning balance of over-the-counter options	$	—	$	—	$	419		$	—
Beginning balance realized during the period		—		—		(419	)		—
Contracts purchased during the period		2,675		182		—			—
Change in the fair value of outstanding contracts		—		—		—			—
Ending balance of over-the-counter options	$	2,675	$	182	$	—		$	—

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 and nine months ended June 26, 2021 and June 27, 2020 are as follows:

	Three Months Ended June 26, 2021			Three Months Ended June 27, 2020
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	$	11,139	Cost of products sold	$	861

	Nine Months Ended June 26, 2021			Nine Months Ended June 27, 2020
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	$	17,632	Cost of products sold	$	(1,077	)

Fair Value of the Partnership's Senior Notes

.  Based upon quoted market prices (a Level 1 input), the fair value of the Senior Notes (also defined below in Note 10) of the Partnership are as follows:

	As of
	June 26,		September 26,
	2021		2020
5.5% senior notes due June 1, 2024	$	—	$	531,563
5.75% senior notes due March 1, 2025		—		255,625
5.875% senior notes due March 1, 2027		369,250		360,063
5.0% senior notes due June 1, 2031		664,625		—
	$	1,033,875	$	1,147,251