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Inventories - Narrative (Details) - UGI Utilities $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 USD ($) storage_agreement Bcf | Sep. 30, 2016 USD ($) Bcf | Dec. 31, 2015 USD ($) Bcf
Inventory |  |  |
Number of storage agreements | storage_agreement | 4 |  |
Volume of gas storage inventories released under SCAAs with non-affiliates (in bcf) | Bcf | 1.9 | 3.5 | 3.8
Carrying value of gas storage inventories released under SCAAs with non-affiliates | $ | $ 4.8 | $ 7.6 | $ 9.4
Minimum |  |  |
Inventory |  |  |
SCAA contract term (in years) | 1 year |  |
Maximum |  |  |
Inventory |  |  |
SCAA contract term (in years) | 3 years |  |

X
- Definition Number of Storage Contract Administrative Agreements + References No definition available. + Details
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Balance Type: | na
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- Definition Storage Agreement Term + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Carrying amount as of the balance sheet date of natural gas storage inventories released under SCAA's with non-affiliates. + References No definition available. + Details
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- Definition Volume of gas storage inventories released. + References No definition available. + Details
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- Definition Line items represent financial 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 No definition available. + Details
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- Details
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Period Type: |

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- Details
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- Details
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