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Nature of Operations (Details) | 12 Months Ended
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Sep. 30, 2018 county
Investment [Line Items] |
General Partner held a general partner interest in AmeriGas Partners | 2.00%
Percentage of limited partnership interest in AmeriGas Partners | 98.00%
Number of counties of operation | 1
AmeriGas Partners |
Investment [Line Items] |
General Partner held a general partner interest in AmeriGas Partners | 1.00%
AmeriGas OLP |
Investment [Line Items] |
General Partner held a general partner interest in AmeriGas Partners | 1.01%
AmeriGas Propane | AmeriGas Partners |
Investment [Line Items] |
General Partner held a general partner interest in AmeriGas Partners | 1.00%
Percentage of limited partnership interest in AmeriGas Partners | 25.30%
General public as limited partner interests in AmeriGas Partners | 73.70%
AmeriGas Propane | AmeriGas OLP |
Investment [Line Items] |
Effective ownership interest in AmeriGas OLP | 27.00%

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- Definition Line items represent reporting concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 12 -Sentence Column A + Details
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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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