Disaggregation of Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 25, 2023	Mar. 26, 2022	Mar. 25, 2023	Mar. 26, 2022	Sep. 24, 2022
Disaggregation Of Revenue [Line Items]
Contract with customer, liability revenue recognized	$ 14,917	$ 35,486	$ 52,031	$ 68,774
Contract assets	$ 19,613		$ 19,613		$ 7,953
Propane [Member]
Disaggregation Of Revenue [Line Items]
Segment reporting, percentage of revenue	87.00%	87.00%	87.00%	87.00%
Fuel Oil and Refined Fuels [Member]
Disaggregation Of Revenue [Line Items]
Segment reporting, percentage of revenue	7.00%	7.00%	7.00%	7.00%
Natural Gas and Electricity [Member]
Disaggregation Of Revenue [Line Items]
Segment reporting, percentage of revenue	2.00%	2.00%	2.00%	2.00%