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Basis of Presentation - Additional Information (Details) | 9 Months Ended
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Jun. 26, 2021 USD ($) wk
Organization Consolidation And Presentation Of Financial Statements [Line Items] |
Minimum number of weeks in the fiscal year reporting calendar | 52
Maximum number of weeks in the fiscal year reporting calendar | 53
Minimum number of weeks in a fiscal quarter | 13
Maximum number of weeks in a fiscal quarter | 14
Remaining or unsatisfied performance obligations | $ | $ 0
Tank Rent and Maintenance Service [Member] |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |
Revenue recognition, recognition period | 1 year
Suburban Propane Partners, L.P. [Member] |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |
Limited partner interest in the Operating Partnership (in hundredths) | 100.00%

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