XML 82 R67.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Commitments and Contingencies - Narrative (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) Drilling_Rig | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Commitments and Contingencies |  |  |
Rent expense | $ 10.7 | $ 13.9 | $ 10.8
Drilling Rig Commitments |  |  |
Commitments and Contingencies |  |  |
Number of drilling rig commitments | Drilling_Rig | 1 |  |
Future minimum commitment for 2017 | $ 4.2 |  |
Hydraulic Fracturing Services Agreement [Member] |  |  |
Commitments and Contingencies |  |  |
Future minimum commitment for 2017 | $ 4.0 |  |
Term of agreement | 15 months |  |
Maximum | Drilling Rig Commitments |  |  |
Commitments and Contingencies |  |  |
Drilling rig commitment term | 3 years |  |

X
- Definition Contractual Obligation, Term + References No definition available. + Details
Name: | cog_ContractualObligationTerm
Namespace Prefix: | cog_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the term of the drilling rig commitment of the entity. + References No definition available. + Details
Name: | cog_DrillingRigCommitmentTerm
Namespace Prefix: | cog_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of drilling rig commitments entered into by the entity. + References No definition available. + Details
Name: | cog_NumberOfDrillingRigCommitments
Namespace Prefix: | cog_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_ContractualObligationDueInNextTwelveMonths
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=cog_DrillingRigObligationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=cog_HydraulicFracturingServicesAgreementMember
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: |