XML 65 R38.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Derivative Instruments and Hedging Activities (Details) | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2015 USD ($) $ / Mcf MMcf | Dec. 31, 2014 USD ($) | Apr. 01, 2014 USD ($)
Derivative disclosures |  |  |  |  |
Unrealized losses included in accumulated other comprehensive income and will reclassified into natural gas and crude oil revenues , pre-tax | $ |  |  |  |  | $ 73,400,000
Unrealized losses included in accumulated other comprehensive income and will reclassified into natural gas and crude oil revenues , net of tax | $ |  |  | $ 0 | $ 0 | $ 44,200,000
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net | $ | $ 0 | $ 0 |  |  |
Derivatives Designated as Hedges | Natural Gas Collars with contract period of July 2015 - December 2015 |  |  |  |  |
Derivative disclosures |  |  |  |  |
Volume | MMcf |  |  | 35,700.0 |  |
Derivatives Designated as Hedges | Natural Gas Collars with contract period of July 2015 - December 2015 | Minimum |  |  |  |  |
Derivative disclosures |  |  |  |  |
Collar Floor Price |  |  | 3.86 |  |
Collar Ceiling Price |  |  | 4.27 |  |
Derivatives Designated as Hedges | Natural Gas Collars with contract period of July 2015 - December 2015 | Maximum |  |  |  |  |
Derivative disclosures |  |  |  |  |
Collar Floor Price |  |  | 3.91 |  |
Collar Ceiling Price |  |  | 4.43 |  |
Derivatives Designated as Hedges | Natural Gas Collars with contract period of July 2015 - December 2015 | Weighted Average |  |  |  |  |
Derivative disclosures |  |  |  |  |
Collar Floor Price |  |  | 3.87 |  |
Collar Ceiling Price |  |  | 4.35 |  |
Derivatives Designated as Hedges | Natural Gas Swaps with contract period of July 2015 - December 2015 |  |  |  |  |
Derivative disclosures |  |  |  |  |
Volume | MMcf |  |  | 35,700.0 |  |
Derivatives Designated as Hedges | Natural Gas Swaps with contract period of July 2015 - December 2015 | Weighted Average |  |  |  |  |
Derivative disclosures |  |  |  |  |
Swaps Weighted Average |  |  | 3.92 |  |
Derivatives Designated as Hedges | Natural Gas Swaps with contract period of July 2015 - October 2015 |  |  |  |  |
Derivative disclosures |  |  |  |  |
Volume | MMcf |  |  | 17,900.0 |  |
Derivatives Designated as Hedges | Natural Gas Swaps with contract period of July 2015 - October 2015 | Weighted Average |  |  |  |  |
Derivative disclosures |  |  |  |  |
Swaps Weighted Average |  |  | 3.36 |  |

X
- Definition Aggregate notional amount of price risk derivatives for instruments with notional amounts expressed in nonmonetary units. + References No definition available. + Details
Name: | cog_NonmonetaryNotionalAmountOfPriceRiskDerivatives1
Namespace Prefix: | cog_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). + References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80784-113994 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
Name: | us-gaap_DerivativeCapPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Floor rate on a price risk derivative such as a floor or a collar. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. + References No definition available. + Details
Name: | us-gaap_DerivativeFloorPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
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 Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
Name: | us-gaap_DerivativeSwapTypeAverageFixedPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
Name: | us-gaap_GainLossOnCashFlowHedgeIneffectivenessNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DerivativeByNatureAxis=cog_NaturalGasCollarWithContractPeriodOfJuly2015ToDecember2015MemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeByNatureAxis=cog_NaturalGasSwapWithContractPeriodOfJuly2015ToDecember2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeByNatureAxis=cog_NaturalGasSwapsWithContractPeriodofJuly2015ToOctober2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |