Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill by reportable segment are as follows:

	AmeriGas Propane			UGI International			Midstream & Marketing		UGI Utilities		Total
Balance September 30, 2015	$	1,956.0		$	803.7		$	11.6	$	182.1	$	2,953.4
Acquisitions	24.2			16.9			—		—		41.1
Dispositions	—			(1.6		)	—		—		(1.6		)
Purchase accounting adjustments	(1.9		)	(2.6		)	—		—		(4.5		)
Foreign currency translation	—			0.6			—		—		0.6
Balance September 30, 2016	1,978.3			817.0			11.6		182.1		2,989.0
Acquisitions	23.0			55.5			—		—		78.5
Purchase accounting adjustments	—			(1.7		)	—		—		(1.7		)
Foreign currency translation	—			41.4			—		—		41.4
Balance September 30, 2017	$	2,001.3		$	912.2		$	11.6	$	182.1	$	3,107.2

Schedule of Finite-Lived Intangible Assets

Intangible assets comprise the following at September 30:

	2017			2016
Customer relationships, noncompete agreements and other	$	817.8		$	773.5
Trademarks and tradenames (not subject to amortization)	134.1			131.6
Gross carrying amount	951.9			905.1
Accumulated amortization	(340.2		)	(324.8		)
Intangible assets, net	$	611.7		$	580.3

Schedule of Indefinite-Lived Intangible Assets

Intangible assets comprise the following at September 30:

	2017			2016
Customer relationships, noncompete agreements and other	$	817.8		$	773.5
Trademarks and tradenames (not subject to amortization)	134.1			131.6
Gross carrying amount	951.9			905.1
Accumulated amortization	(340.2		)	(324.8		)
Intangible assets, net	$	611.7		$	580.3