Commitments and Contingencies - Contractual Obligations Under Supply Storage and Service Contracts (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Recorded Unconditional Purchase Obligation
2015	$ 734.5
2016	320.9
2017	87.0
2018	35.1
2019	23.6
After 2019	66.4
UGI Utilities Supply, Storage and Transportation Contracts
Recorded Unconditional Purchase Obligation
2015	156.9
2016	66.8
2017	44.9
2018	30.8
2019	23.6
After 2019	66.4
Midstream & Marketing Supply Contracts
Recorded Unconditional Purchase Obligation
2015	302.1
2016	107.0
2017	42.1
2018	4.3
2019	0
After 2019	0
AmeriGas Propane Supply Contracts
Recorded Unconditional Purchase Obligation
2015	130.8
2016	74.3
2017	0
2018	0
2019	0
After 2019	0
UGI International Supply Contracts
Recorded Unconditional Purchase Obligation
2015	144.7
2016	72.8
2017	0
2018	0
2019	0
After 2019	$ 0

Amount of the recorded unconditional purchase obligation maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 440

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25383-109308

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Amount of the recorded unconditional purchase obligation maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the recorded unconditional purchase obligation maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the recorded unconditional purchase obligation maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the recorded unconditional purchase obligation maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the recorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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