Derivative, Gain (Loss) on Derivative, Net, And Write-off Of Deferred Debt Issuance Cost

No definition available.

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Namespace Prefix:	ugi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

+ Details

Name:	us-gaap_DerivativeGainLossOnDerivativeNet
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

Name:	us-gaap_ExtinguishmentOfDebtAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_WriteOffOfDeferredDebtIssuanceCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Debt - UGI International (Details) $ in Millions		1 Months Ended				12 Months Ended
Debt - UGI International (Details) $ in Millions	May 29, 2015 EUR (€)	Oct. 31, 2015 EUR (€)	Oct. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Apr. 30, 2015 EUR (€)	Sep. 30, 2015 USD ($)	Sep. 30, 2017 EUR (€)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 EUR (€)	Sep. 30, 2016 USD ($)	May 29, 2015 USD ($)
Debt Instrument
Long-term debt \| $								$ 4,172.1		$ 3,795.5
Interest rate swaps \| Interest expense
Debt Instrument
Loss on interest rate swaps \| $						$ 9.0
France SAS
Debt Instrument
Total Capacity							€ 60,000,000		€ 60,000,000
France SAS \| 2015 Senior Facilities Agreement
Debt Instrument
Debt instrument term (in years)					5 years
France SAS \| 2015 Senior Facilities Agreement \| Term Loan
Debt Instrument
Long-term debt	€ 600,000,000				€ 600,000,000						$ 659.6
Long-term debt, gross \| $								708.9		674.4
France SAS \| 2015 Senior Facilities Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument
Total Capacity					€ 60,000,000
France SAS \| 2011 Senior Facilities Agreement \| Interest expense
Debt Instrument
Write-off of unamortized debt issuance costs \| $						1.3
France SAS \| 2011 Senior Facilities Agreement \| Interest rate swaps \| Interest expense
Debt Instrument
Loss on interest rate swaps \| $						9.0
France SAS \| 2011 Senior Facilities Agreement \| AGZ Holding
Debt Instrument
Repayments of debt	€ 342,000,000
France SAS \| 2011 Senior Facilities Agreement \| Term Loan
Debt Instrument
Pretax loss on early extinguishment of debt \| $						10.3
Flaga
Debt Instrument
Total Capacity							55,000,000		€ 55,000,000
Flaga \| Flaga Credit Facility Agreement \| Line of Credit
Debt Instrument
Total Capacity		€ 100,800,000
Flaga \| Flaga Credit Facility Agreement \| Overdraft Facility
Debt Instrument
Total Capacity		5,000,000					5,000,000
Flaga \| Flaga Credit Facility Agreement \| Guarantee Facility
Debt Instrument
Total Capacity		25,000,000					25,000,000
Flaga \| Flaga Credit Facility Agreement \| Term Loan
Debt Instrument
Long-term debt, gross		45,800,000
Flaga \| Flaga Credit Facility Agreement \| Revolving Credit Facility \| Line of Credit
Debt Instrument
Total Capacity		25,000,000					€ 25,000,000
Flaga \| Flaga Multi-Currency Working Capital Facility \| Line of Credit
Debt Instrument
Total Capacity		46,000,000
Flaga \| Flaga Term Loan, due October 2016 \| Term Loan
Debt Instrument
Amount of debt extinguished		19,100,000	$ 21.4
Flaga \| Flaga Term Loan, due through August 2016 \| Term Loan
Debt Instrument
Amount of debt extinguished		€ 26,700,000	$ 29.8
Flaga \| Flaga Term Loan due through September 2016 \| Term Loan
Debt Instrument
Amount of debt extinguished \| $				$ 52.0
Flaga \| Flaga Term Loan, due September 2018 \| Term Loan
Debt Instrument
Long-term debt, gross \| $				$ 59.1		$ 59.1		$ 59.1		$ 59.1