Debt Instrument, Covenant, EBITDA to Interest Expense Ratio, Minimum

No definition available.

Name:	ugi_DebtInstrumentCovenantEBITDAtoInterestExpenseRatioMinimum
Namespace Prefix:	ugi_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant, Total Indebtedness to EBITDA Ratio, Maximum

+ References

No definition available.

+ Details

Name:	ugi_DebtInstrumentCovenantTotalIndebtednesstoEBITDARatioMaximum
Namespace Prefix:	ugi_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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

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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. 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 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 2: 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 3: 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 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

+ Details

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

Debt (Details)	1 Months Ended
Debt (Details)	Feb. 29, 2016 USD ($)	Oct. 31, 2015 EUR (€)	Apr. 30, 2016 USD ($)	Mar. 31, 2016 EUR (€)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Line of Credit Facility
Long-term debt \| $					$ 3,639,000,000	$ 3,428,700,000
Energy Services \| Energy Services Credit Agreement
Line of Credit Facility
Maximum ratio of total indebtedness to EBITDA	3.50
Minimum ratio of EBITDA to interest expense	3.50
Line of Credit \| Flaga \| Flaga Credit Facility Agreement
Line of Credit Facility
Maximum borrowing capacity		€ 100,800,000.0
Line of Credit \| Flaga \| Flaga Multi-Currency Working Capital Facility
Line of Credit Facility
Maximum borrowing capacity				€ 46,000,000
Line of Credit \| Flaga \| Revolving Credit Facility \| Flaga Credit Facility Agreement
Line of Credit Facility
Maximum borrowing capacity		€ 25,000,000
Facility fee on unused balance		30.00%
Line of Credit \| Flaga \| Revolving Credit Facility \| Flaga Credit Facility Agreement \| EURIBOR \| Minimum
Line of Credit Facility
Basis spread on variable rate		1.45%
Line of Credit \| Flaga \| Revolving Credit Facility \| Flaga Credit Facility Agreement \| EURIBOR \| Maximum
Line of Credit Facility
Basis spread on variable rate		3.65%
Line of Credit \| Energy Services \| Energy Services Credit Agreement
Line of Credit Facility
Maximum borrowing capacity \| $	$ 240,000,000
Basis spread on variable rate	2.25%
Line of Credit \| Energy Services \| Energy Services Credit Agreement \| Federal Funds Rate
Line of Credit Facility
Basis spread on variable rate	0.50%
Line of Credit \| Energy Services \| Energy Services Credit Agreement \| London Interbank Offered Rate (LIBOR)
Line of Credit Facility
Basis spread on variable rate	1.00%
Line of Credit \| Energy Services \| Letter of Credit [Member] \| Energy Services Credit Agreement
Line of Credit Facility
Maximum borrowing capacity \| $	$ 50,000,000
Overdraft Facility \| Flaga \| Flaga Credit Facility Agreement
Line of Credit Facility
Maximum borrowing capacity		€ 5,000,000
Guarantee Facility \| Flaga \| Flaga Credit Facility Agreement
Line of Credit Facility
Maximum borrowing capacity		25,000,000
Term Loan \| Flaga \| Flaga Credit Facility Agreement
Line of Credit Facility
Maximum borrowing capacity		€ 45,800,000.0
Term Loan \| Flaga \| Flaga Credit Facility Agreement \| Three-Month EURIBOR \| Interest Rate Swap \| Through September 2016
Line of Credit Facility
Underlying EURIBOR fixed rate		2.18%
Term Loan \| Flaga \| Flaga Credit Facility Agreement \| Three-Month EURIBOR \| Interest Rate Swap \| October 2016 Through October 2020
Line of Credit Facility
Underlying EURIBOR fixed rate		0.23%
Term Loan \| Flaga \| Flaga Credit Facility Agreement \| Three-Month EURIBOR \| Minimum
Line of Credit Facility
Basis spread on variable rate		0.40%
Term Loan \| Flaga \| Flaga Credit Facility Agreement \| Three-Month EURIBOR \| Maximum
Line of Credit Facility
Basis spread on variable rate		1.80%
Term Loan \| Flaga \| Flaga Term Loan Due October 2016
Line of Credit Facility
Long-term debt				19,100,000
Term Loan \| Flaga \| Flaga Term Loan Due August 2016
Line of Credit Facility
Long-term debt				€ 26,700,000
Senior Notes \| UGI Utilities \| Senior Notes due June 2026 \| Subsequent Event
Line of Credit Facility
Aggregate principal amount \| $			$ 100,000,000
Stated interest rate			2.95%
Senior Notes \| UGI Utilities \| Senior Notes due September 2046 \| Subsequent Event
Line of Credit Facility
Aggregate principal amount \| $			$ 200,000,000
Stated interest rate			4.12%
Senior Notes \| UGI Utilities \| Senior Notes due October 2046 \| Subsequent Event
Line of Credit Facility
Aggregate principal amount \| $			$ 100,000,000
Stated interest rate			4.12%
Senior Notes \| UGI Utilities \| Senior Notes Due September 2016
Line of Credit Facility
Aggregate principal amount \| $					$ 175,000,000
Stated interest rate				5.75%	5.75%