Annual delivery of propane by acquired subsidiary.

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Fair value of common units contributed by general partner.

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Number of retail customer.

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Percentage of contribution by contributor in form of limited partner interest.

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Percentage of contribution by contributor in form of membership interest.

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Percentage of remaining contribution by contributor in form of general partner interest.

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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Number of shares of equity interests issued or issuable to acquire entity.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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The number of businesses acquired by the entity during the period.

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The number of states the entity operates in as of the balance sheet date.

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Units contributed by each class of partners during the year. Units represent shares of ownership of the general, limited, and preferred partners.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended		12 Months Ended				12 Months Ended
	Jan. 12, 2012 Heritage Propane Customer gal States	Jan. 12, 2012 Heritage Propane States	Sep. 30, 2012 Heritage Propane	Jan. 12, 2012 Heritage Operating LP	Jan. 12, 2012 Heritage Operating LP Heritage Propane	Jan. 12, 2012 Titan Energy	Sep. 30, 2014 Energy Services	Sep. 30, 2013 Energy Services	Sep. 30, 2014 AmeriGas	Sep. 30, 2013 AmeriGas propane_distribution_business	Sep. 30, 2012 AmeriGas	Sep. 30, 2013 UGI International
Business Acquisition
Purchase price		$ 2,604.8
Cash consideration	1,472.2						20.0	23.0	15.7	20.0	13.5	36.0
Number of Businesses Acquired										2
Common Units issued by AmeriGas Partners (in units)	29,567,362	29,567,362
Fair value of Common Units issued as consideration in acquisition of Heritage Propane	1,132.6
Number of states in which business operates		41
Annual delivery of propane by acquired subsidiary (in gallons)	500,000,000
Number of retail customer	1,000,000
Limited partner interest (percentage)				99.999%		99.99%
Membership interest (percentage)				100.00%		100.00%
Remaining general partner interest (percentage)				0.001%		0.01%
Common units contributed to partnership (in units)	934,327
Fair value of contributed Common Units (in usd)					41.7
Transaction expenses included in Consolidated Statements of Income			$ 5.3