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Derivative Instruments and Hedging Activities (Details) kWh in Millions, MMBTU in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2016 USD ($) | Mar. 31, 2016 EUR (€) | Jun. 30, 2015 USD ($) | Jun. 30, 2016 USD ($) kWh MMBTU gal | Jun. 30, 2015 USD ($) kWh MMBTU gal | Jun. 30, 2016 EUR (€) | Jun. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 EUR (€) | Jun. 30, 2015 USD ($)
Derivative |  |  |  |  |  |  |  |  |  |
Settlement of UGI Utilities interest rate agreements |  |  |  | $ 36,000,000 | $ 0 |  |  |  |  |
Amount of net losses associated with interest rate hedges to be reclassified with interest rate hedges during the next 12 months |  |  |  |  |  |  | $ (3,300,000) |  |  |
Amount of net gains associated with currency rate risk to be reclassified into earnings during the next 12 months |  |  |  |  |  |  | 12,300,000 |  |  |
Restricted cash |  |  |  |  |  |  | 9,600,000 | $ 69,300,000 |  | $ 45,200,000
Loss on ineffectiveness and excluded derivatives recognized in income |  |  |  | $ 5,500,000 |  |  |  |  |  |
UGI France |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Derivative interest rate floor |  | 0.00% |  |  |  |  |  |  |  |
Commodity contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Amounts remaining in AOCI related to commodity derivative hedges |  |  |  |  |  |  | 0 |  |  |
Interest Rate Swap |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (in currency) | € |  |  |  |  |  | € 645,800,000 |  |  | € 659,100,000 |
Interest Rate Swap | Interest Expense |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Loss on interest rate swaps |  |  | $ 9,000,000 |  |  |  |  |  |  |
Interest Rate Swap | UGI France |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Payment to interest rate swap counterparties | € |  | € 7,700,000 |  |  |  |  |  |  |  |
Interest Rate Swap | UGI France | EURIBOR |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Underlying EURIBOR fixed rate |  | 0.18% |  |  |  |  |  |  |  |
Interest Rate Swap | UGI France | Term Loan |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (in currency) | € |  | € 600,000,000 |  |  |  |  |  |  |  |
Interest Rate Protection Agreements |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (in currency) |  |  |  |  |  |  | 0 |  |  | 0
Interest Rate Protection Agreements | UGI Utilities |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Settlement of UGI Utilities interest rate agreements | $ 36,000,000 |  |  |  |  |  |  |  |  |
Foreign currency contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Maximum length of time hedged in price risk cash flow hedges (in months) |  |  |  | 38 months |  |  |  |  |  |
Notional amount (in currency) |  |  |  |  |  | € 0 | 316,800,000 |  | € 0 | 227,900,000
Cross-currency contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (in currency) |  |  |  |  |  |  | $ 59,100,000 |  |  | $ 52,000,000
Propane | Commodity contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Volume of LPG commodity derivatives (in gallons) | gal |  |  |  | 406,400,000 | 405,900,000 |  |  |  |  |
Maximum length of time hedging exposure to LPG commodity price risk (in months) |  |  |  | 39 months |  |  |  |  |  |
Propane | Natural Gas Storage and Propane Storage NYMEX Contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Volume of LPG commodity derivatives (in gallons) | gal |  |  |  | 0 | 2,000,000 |  |  |  |  |
Natural Gas | Natural Gas Futures, Forward And Pipeline Contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | MMBTU |  |  |  | 79.6 | 120.8 |  |  |  |  |
Maximum length of time hedged in price risk cash flow hedges (in months) |  |  |  | 53 months |  |  |  |  |  |
Natural Gas | Gas Basis Swap Contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | MMBTU |  |  |  | 106.3 | 63.9 |  |  |  |  |
Natural Gas | Natural Gas Storage and Propane Storage NYMEX Contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | MMBTU |  |  |  | 1.8 | 0.8 |  |  |  |  |
Natural Gas | Gas Utility | Commodity contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | MMBTU |  |  |  | 13.4 | 13.1 |  |  |  |  |
Maximum length of time hedged in price risk cash flow hedges (in months) |  |  |  | 15 months |  |  |  |  |  |
Electricity | Commodity contracts | Long |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | kWh |  |  |  | 558.0 | 429.5 |  |  |  |  |
Maximum length of time hedged in price risk cash flow hedges (in months) |  |  |  | 36 months |  |  |  |  |  |
Electricity | Commodity contracts | Short |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | kWh |  |  |  | 344.7 | 210.5 |  |  |  |  |
Maximum length of time hedged in price risk cash flow hedges (in months) |  |  |  | 36 months |  |  |  |  |  |
Electricity | Electric Utility | Commodity contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | kWh |  |  |  |  | 494.5 |  |  |  |  |
Electricity | Electric Utility | Financial Transmission Rights |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | kWh |  |  |  | 80.6 |  |  |  |  |  |
Maximum length of time hedged in price risk cash flow hedges (in months) |  |  |  | 11 months |  |  |  |  |  |
Electricity | Electric Utility | NYISO Capacity Swap Contracts |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |
Notional amount (energy measure) | kWh |  |  |  |  | 494.5 |  |  |  |  |

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