XML 42 R35.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Significant Accounting Policies (Details Textual) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Dec. 31, 2011
Significant Accounting Policies (Textual) [Abstract] |
Decrease in income tax expense | $ 5.5

X
- Definition Decrease in income tax expense (benefit). + References No definition available. + Details
Name: | ugi_DecreaseInIncomeTaxExpenseBenefit
Namespace Prefix: | ugi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ugi_SignificantAccountingPoliciesTextualAbstract
Namespace Prefix: | ugi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration