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Investments in and Acquisitions and Dispositions of Businesses - Additional Information (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Mar. 09, 2022	Feb. 17, 2022	Mar. 26, 2022	Dec. 25, 2021	Jun. 25, 2022	Jun. 26, 2021
Business Acquisition [Line Items]
Investment plus direct transaction costs					$ 36,366	$ 8,316
Proceeds from sale of business					$ 850	$ 0
Propane And Propane Retailer [Member]
Business Acquisition [Line Items]
Proceeds from sale of business		$ 850
Gain on sale of assets			$ 363
Asset acquired				$ 500
Suburban Renewables
Business Acquisition [Line Items]
Investment plus direct transaction costs	$ 30,000
Percentage of equity interest	25.00%
Oberon
Business Acquisition [Line Items]
Percentage of equity interest					38.00%