Segment Information (Details Textual)	6 Months Ended
Mar. 31, 2013 Reportable_Segments
Segment Reporting Information [Line Items]
Number of reportable segments (in reportable segments)	6
Segment Information (Textual) [Abstract]
General Partner's interest in AmeriGas OLP (as a percent)	1.01%

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration