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v3.23.2

Business Combinations and Divestitures - Additional Information (Detail) $ in Thousands | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 USD ($) PartnershipUnit | Sep. 30, 2023 USD ($) PartnershipUnit | Jun. 30, 2023 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 | 5 |  |  |
Aggregate purchase price partnership acquired | $ 15,600 |  |  |
Cash and assuming | 13,100 |  |  |
Liabilities | 2,500 |  |  |
Aggregate purchase price allocation, intangible assets | 7,300 |  |  |
Goodwill | 3,100 |  |  |
Aggregate purchase price allocation, fixed assets | 5,600 |  |  |
Gross purchase price increased (reduced) by working capital credits | $ (400) |  |  |
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) |  |
Cash proceeds from sale of assets |  | $ 2,200 |  |

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