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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 |  |  |  |  |  |  |  |  |

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