XML 99 R81.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Derivatives (Schedule of Outstanding Derivatives Entered Into to Hedge Inventory or Fixed Price Purchase Commitments) (Details) bbl in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2018 bbl $ / bbl $ / units
Designated as hedges under accounting rules | Sell (Short) Contracts | Future | Crude Oil |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 217
Weighted average contract price per bbl | $ / bbl | 65.89
Designated as hedges under accounting rules | Buy (Long) Contracts | Future | Crude Oil |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 0
Weighted average contract price per bbl | $ / bbl | 0.00
Not qualifying or not designated as hedges under accounting rules | Sell (Short) Contracts | Future | Crude Oil |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 261
Weighted average contract price per bbl | $ / bbl | 67.17
Not qualifying or not designated as hedges under accounting rules | Sell (Short) Contracts | Future | Natural Gas |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 51
Weighted average contract price per bbl | $ / bbl | 2.99
Not qualifying or not designated as hedges under accounting rules | Sell (Short) Contracts | Future | Fuel Oil Futures |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 143
Weighted average contract price per bbl | $ / bbl | 64.87
Not qualifying or not designated as hedges under accounting rules | Sell (Short) Contracts | Swap | Natural Gas |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 367
Weighted average contract price per bbl | $ / bbl | 0.70
Not qualifying or not designated as hedges under accounting rules | Sell (Short) Contracts | Options | Crude Oil |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 35
Weighted average premium received | $ / bbl | 1.35
Not qualifying or not designated as hedges under accounting rules | Buy (Long) Contracts | Future | Crude Oil |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 197
Weighted average contract price per bbl | $ / bbl | 69.95
Not qualifying or not designated as hedges under accounting rules | Buy (Long) Contracts | Future | Natural Gas |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 368
Weighted average contract price per bbl | $ / bbl | 2.81
Not qualifying or not designated as hedges under accounting rules | Buy (Long) Contracts | Future | Fuel Oil Futures |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 40
Weighted average contract price per bbl | $ / bbl | 63.84
Not qualifying or not designated as hedges under accounting rules | Buy (Long) Contracts | Swap | Natural Gas |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 0
Weighted average contract price per bbl | $ / units | 0.00
Not qualifying or not designated as hedges under accounting rules | Buy (Long) Contracts | Options | Crude Oil |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 10
Weighted average premium received | $ / bbl | 0.22

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract but not the derivative contract itself. + References No definition available. + Details
Name: | us-gaap_UnderlyingDerivative
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract measured in volume but not the derivative contract itself. + References No definition available. + Details
Name: | us-gaap_UnderlyingDerivativeVolume
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PositionAxis=us-gaap_ShortMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_FutureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnergyAxis=us-gaap_CrudeOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PositionAxis=us-gaap_LongMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnergyAxis=srt_NaturalGasReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnergyAxis=gel_FuelOilFuturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_SwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_OptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |