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Business Combinations and Divestitures - Additional Information (Detail) $ in Thousands		3 Months Ended	12 Months Ended
	Oct. 25, 2022 USD ($)	Dec. 31, 2021 USD ($) PartnershipUnit	Sep. 30, 2023 USD ($) PartnershipUnit	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)
Business Acquisition [Line Items]
Goodwill				$ 254,354	$ 254,110
Heating Oil Dealers
Business Acquisition [Line Items]
Number of businesses acquired | PartnershipUnit		3
Aggregate purchase price partnership acquired		$ 4,200
Cash and assuming		3,300
Liabilities		900
Aggregate purchase price allocation, intangible assets		2,900
Aggregate purchase price allocation, fixed assets		2,100
Gross purchase price increased (reduced) by working capital credits		$ (800)
Cash proceeds from sale of assets	$ 2,200
Heating Oil Dealers | Scenario Forecast
Business Acquisition [Line Items]
Number of businesses acquired | PartnershipUnit			2
Aggregate purchase price partnership acquired			$ 1,200
Cash and assuming			1,200
Aggregate purchase price allocation, intangible assets			1,700
Goodwill			200
Aggregate purchase price allocation, fixed assets			200
Gross purchase price increased (reduced) by working capital credits			$ (900)

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