Unit-Based Compensation Arrangements - Summary of Activity For Restricted Units Plans (Details) - 2018 Restricted Unit Plan [Member] - $ / shares		3 Months Ended	6 Months Ended
		Dec. 30, 2023	Mar. 30, 2024
Units [Rollforward]
Outstanding, beginning of period (in units)		1,366,362	1,366,362
Awarded (in units)		455,655	455,655
Forfeited (in units)			0
Vested (in units)	[1]		(681,134)
Outstanding, ending of period (in units)			1,140,883
Weighted Average Grant Date Fair Value Per Unit [Abstract]
Outstanding, beginning of period (in dollars per unit)		$ 12.94	$ 12.94
Awarded (in dollars per unit)			14.68
Forfeited (in dollars per unit)			0
Vested (in dollars per unit)	[1]		(13.53)
Outstanding, end of period (in dollars per unit)			$ 13.29

[1] During fiscal 2024, the Partnership withheld 180,787 Common Units from participants for income tax withholding purposes for those executive officers of the Partnership whose shares of restricted units vested during the period.