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Financial Instruments and Risk Management - Additional Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Sep. 28, 2024 USD ($) State Location | Sep. 30, 2023 USD ($)
Derivatives, Fair Value [Line Items] |  |
Maximum maturity period of highly liquid investment considered as cash equivalents | 3 months |
Cash collateral | $ 6,439 | $ 0
Number of locations served by the partnership | Location | 700 |
Number of states in which the partnership operates | State | 42 |
Green Bonds Due October 1 2028 through October 1 2033 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value of Senior Notes | $ 72,264 |
Senior Notes [Member] | 5.0% Senior Notes due June 1, 2031 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value of Senior Notes | 606,099 |
Senior Notes [Member] | 5.875% Senior Notes due March 1, 2027 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value of Senior Notes | $ 350,056 |
Supplier Concentration Risk [Member] | Propane Purchases [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Minimum concentration risk threshold accounted for by a single customer or supplier (in hundredths) | 10.00% |
Supplier Concentration Risk [Member] | Propane Purchases [Member] | Crestwood Equity Partners L.P [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Concentration percentage of propane supply provided by suppliers (in hundredths) | 30.00% |
Supplier Concentration Risk [Member] | Propane Purchases [Member] | Targa Liquids Marketing [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Concentration percentage of propane supply provided by suppliers (in hundredths) | 15.00% |
Commodity Contract [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Weighted average maturity of outstanding commodity-related derivatives | 3 months | 6 months

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