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Debt - UGI Utilities (Details) - UGI Utilities - USD ($) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2017 | Sep. 30, 2019 | Jun. 27, 2019 | Feb. 01, 2019 | Sep. 30, 2018
Debt Instrument |  |  |  |  |
Total capacity (up to) |  | $ 350,000,000.0 |  |  | $ 450,000,000.0
Line of Credit | 2019 Credit Agreement |  |  |  |  |
Debt Instrument |  |  |  |  |
Total capacity (up to) |  |  | $ 350,000,000 |  |
Additional loan amount |  |  | 150,000,000 |  |
Line of Credit | 2019 Credit Agreement | Minimum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  | 0.00% |  |  |
Line of Credit | 2019 Credit Agreement | Maximum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  | 1.75% |  |  |
Senior Notes | 4.55% Senior Notes due February 2049 |  |  |  |  |
Debt Instrument |  |  |  |  |
Aggregate principal amount |  |  |  | $ 150,000,000 |
Stated interest rate |  |  |  | 4.55% |
Term Loan |  |  |  |  |
Debt Instrument |  |  |  |  |
Aggregate principal amount | $ 125,000,000 |  |  |  |
Debt instrument, quarterly payment | $ 1,600,000 |  |  |  |
Term Loan | Minimum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) | 0.00% |  |  |  |
Term Loan | Maximum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) | 1.875% |  |  |  |
Derivative, fixed interest rate | 3.00% |  |  |  |
Letter of Credit | Line of Credit | 2019 Credit Agreement |  |  |  |  |
Debt Instrument |  |  |  |  |
Total capacity (up to) |  | $ 50,000,000 | 100,000,000 |  |
Revolving Credit Facility | Line of Credit | 2019 Credit Agreement |  |  |  |  |
Debt Instrument |  |  |  |  |
Total capacity (up to) |  |  | $ 450,000,000 |  |

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- Definition Line of Credit Facility, Accordion Feature, Increase Limit + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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