Equity (Details Textual)				0 Months Ended
Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2011	Jan. 12, 2012 Heritage Propane [Member]	Jun. 30, 2012 AmeriGas Partners [Member] IPO [Member]
Equity (Textual) [Abstract]
Common units issued by AmeriGas Partners (in units)				29,567,362
Number of Common Units sold in underwritten public offering (in shares)	115,623,094	115,507,094	115,507,094		7,000,000

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

Name:	us-gaap_CommonStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant