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Common Stock And Equity Based Compensation - AmeriGas Common Unit Based Award Activity (Details) (USD $) |  |  | 12 Months Ended |  |  | 12 Months Ended |  |  | 12 Months Ended
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Sep. 30, 2014 Amerigas Performance Units and Stock Units | Sep. 30, 2013 Amerigas Performance Units and Stock Units | Sep. 30, 2014 AmeriGas Performance Unit | Sep. 30, 2014 AmeriGas Partners Common Units | Sep. 30, 2014 Vested Amerigas Performance Units and Stock Units | Sep. 30, 2013 Vested Amerigas Performance Units and Stock Units | Sep. 30, 2014 Vested AmeriGas Performance Unit | Sep. 30, 2014 Vested AmeriGas Partners Common Units | Sep. 30, 2014 Non-Vested Amerigas Performance Units and Stock Units | Sep. 30, 2013 Non-Vested Amerigas Performance Units and Stock Units | Sep. 30, 2014 Non-Vested AmeriGas Performance Unit | Sep. 30, 2014 Non-Vested AmeriGas Partners Common Units
Number of AmeriGas Partners Common Units Subject to Award |  |  |  |  |  |  |  |  |  |  |  |
Number of Equity-based Units - beginning balance (in units) | 200,235 | 224,167 |  |  | 37,207 | 47,715 |  |  | 163,028 | 176,452 |  |
Granted |  |  | 53,800 | 32,658 |  |  | 633 | 15,936 |  |  | 53,167 | 16,722
Forfeited |  |  | (8,150) | (7,783) |  |  | 0 | 0 |  |  | (8,150) | (7,783)
Vested |  |  | 0 | 0 |  |  | 15,319 | 52,061 |  |  | (15,319) | (52,061)
Performance criteria not met |  |  | (31,317) |  |  |  | (31,317) |  |  |  | 0 |
Awards paid |  |  |  | (63,140) |  |  |  | (63,140) |  |  |  | 0
Number of Equity-based Units - ending balance (in units) | 200,235 | 224,167 |  |  | 37,207 | 47,715 |  |  | 163,028 | 176,452 |  |
Weighted Average Grant Date Fair Value (per Unit) |  |  |  |  |  |  |  |  |  |  |  |
Weighted Average Grant Date Fair Value - beginning balance (in usd per unit) | $ 44.82 | $ 47.88 |  |  | $ 44.27 | $ 47.92 |  |  | $ 44.95 | $ 47.87 |  |
Granted |  |  | $ 41.50 | $ 46.37 |  |  | $ 41.37 | $ 48.00 |  |  | $ 41.50 | $ 44.81
Forfeited |  |  | $ 45.96 | $ 51.10 |  |  | $ 0.00 | $ 0.00 |  |  | $ 45.96 | $ (51.10)
Vested |  |  | $ 0.00 | $ 0.00 |  |  | $ 53.93 | $ 47.58 |  |  | $ 53.93 | $ 47.58
Performance criteria not met |  |  | $ 54.51 |  |  |  | $ 54.51 |  |  |  | $ 0.00 |
Unit awards paid |  |  |  | $ 48.00 |  |  |  | $ 48.00 |  |  |  | $ 0.00
Weighted Average Grant Date Fair Value - ending balance (in usd per unit) | $ 44.82 | $ 47.88 |  |  | $ 44.27 | $ 47.92 |  |  | $ 44.95 | $ 47.87 |  |

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- Definition Share based compensation arrangement by share based payment award equity instruments other than options unit awards paid weighted average grant date fair value. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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