XML 23 R52.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Utility Regulatory Assets and Liabilities and Regulatory Matters - Narrative (Details) - USD ($) $ in Millions | Jan. 28, 2020 | Oct. 11, 2019 | Jan. 28, 2019 | Oct. 27, 2018 | Oct. 25, 2018 | Dec. 31, 2019 | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | --- | --- | ---
Pennsylvania Public Utility Commission | UGI Gas |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  |  |  |
Public utilities, requested rate increase (decrease), amount |  |  | $ 71.1 |  |  |  |  |
Public utilities, approved rate increase (decrease), amount |  | $ 30.0 |  |  |  |  |  |
Tax benefit to be returned |  |  | $ 24.0 |  |  |  |  |
Energy Efficiency and Conservation and Growth extension tariff, extension term |  | 5 years |  |  |  |  |  |
Pennsylvania Public Utility Commission | Electric Utility |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  |  |  |
Public utilities, requested rate increase (decrease), amount |  |  |  |  | $ 3.2 |  |  |
Public utilities, customer billing credit |  |  |  | $ 0.2 |  |  |  |
Gas Utility |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  |  |  |
Fair value of unrealized gains (losses) |  |  |  |  |  | $ (2.9) | $ (2.2) | $ 0.8
Subsequent Event | Pennsylvania Public Utility Commission | UGI Gas |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  |  |  |
Public utilities, requested rate increase (decrease), amount | $ 74.6 |  |  |  |  |  |  |

X
- Definition Public Utilities, Energy Efficiency and Conservation and Growth Extension Tariff, Extension Term + References No definition available. + Details
Name: | ugi_PublicUtilitiesEnergyEfficiencyAndConservationAndGrowthExtensionTariffExtensionTerm
Namespace Prefix: | ugi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public Utilities, Tax Benefits Received, To Be Returned + References No definition available. + Details
Name: | ugi_PublicUtilitiesTaxBenefitsReceivedToBeReturned
Namespace Prefix: | ugi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Tax Cuts And Jobs Act Of 2017, Customer Billing Credit + References No definition available. + Details
Name: | ugi_TaxCutsAndJobsActOf2017CustomerBillingCredit
Namespace Prefix: | ugi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of public utility's approved rate increase (decrease) by regulatory agency. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of public utility's requested rate increase (decrease) with regulatory agency. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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
Name: | us-gaap_RegulatoryAssetLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RegulatoryAgencyAxis=ugi_PennsylvaniaPublicUtilityCommissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ugi_UGIGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ugi_ElectricUtilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=ugi_GasUtilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |