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Debt - Schedule of Long-term Debt (Footnotes) (Details) € in Millions, $ in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 31, 2017 | Oct. 31, 2017 | Sep. 30, 2018 EUR (€) | Sep. 30, 2017 | Sep. 30, 2018 USD ($)
Debt Instrument |  |  |  |  |
Principal repayments due April 30, 2019 |  |  |  |  | $ 29.3
Principal repayments due April 30, 2020 |  |  |  |  | 101.4
AmeriGas Propane |  |  |  |  |
Debt Instrument |  |  |  |  |
Principal repayments due April 30, 2019 |  |  |  |  | 1.6
Principal repayments due April 30, 2020 |  |  |  |  | $ 0.3
AmeriGas Propane | Senior Secured Notes | HOLP Senior Secured Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Effective interest rate |  |  | 6.75% | 6.75% | 6.75%
France SAS | France SAS Senior Facilities term loan, due through April 2020 | EURIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Variable interest rate floor (percentage) |  |  | 0.00% |  |
Basis spread on variable rate (percentage) |  |  | 1.75% | 1.90% |
France SAS | France SAS Senior Facilities term loan, due through April 2020 | EURIBOR | Minimum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 1.60% |  |
France SAS | France SAS Senior Facilities term loan, due through April 2020 | EURIBOR | Maximum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 2.70% |  |
France SAS | France SAS Senior Facilities term loan, due through April 2020 | Interest rate swaps | EURIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Underlying fixed interest rate (percentage) |  |  | 0.18% |  | 0.18%
France SAS | Term Loan | France SAS Senior Facilities term loan, due through April 2020 |  |  |  |  |
Debt Instrument |  |  |  |  |
Principal repayments due April 30, 2019 | € |  |  | € 60 |  |
Principal repayments due April 30, 2020 | € |  |  | € 480 |  |
France SAS | Term Loan | France SAS Senior Facilities term loan, due through April 2020 | EURIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Effective interest rate |  |  | 1.93% | 2.08% | 1.93%
Flaga | Term Loan | Flaga Credit Facility Agreement |  |  |  |  |
Debt Instrument |  |  |  |  |
Effective interest rate |  |  | 1.93% | 1.80% | 1.93%
Flaga | Term Loan | Flaga Credit Facility Agreement | Three-Month EURIBOR | Minimum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 1.20% |  |
Flaga | Term Loan | Flaga Credit Facility Agreement | Three-Month EURIBOR | Maximum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 2.60% |  |
Flaga | Term Loan | Flaga Credit Facility Agreement | Interest rate swaps | Three-Month EURIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Underlying fixed interest rate (percentage) |  |  | 0.23% |  | 0.23%
Flaga | Term Loan | Flaga Term Loan, due September 2018 | One-Month LIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 1.125% |  |
Flaga | Term Loan | Flaga Term Loan, due September 2018 | Cross-currency swaps | One-Month LIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Effective interest rate |  |  | 0.55% | 0.87% | 0.55%
UGI Utilities |  |  |  |  |
Debt Instrument |  |  |  |  |
Principal repayments due April 30, 2019 |  |  |  |  | $ 6.8
Principal repayments due April 30, 2020 |  |  |  |  | $ 95.3
UGI Utilities | Term Loan | Utilities Term Loan | Cross-currency swaps | One-Month LIBOR |  |  |  |  |
Debt Instrument |  |  |  |  |
Effective interest rate |  |  | 2.76% |  | 2.76%
UGI Utilities | Unsecured Debt | Minimum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) |  | 0.00% |  |  |
UGI Utilities | Unsecured Debt | Maximum |  |  |  |  |
Debt Instrument |  |  |  |  |
Basis spread on variable rate (percentage) | 3.00% | 1.875% |  |  |
Underlying fixed interest rate (percentage) | 3.00% | 3.00% |  |  |

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