XML 93 R99.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Other Employee Benefits MultiEmployer Plans (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Letters of Credit Outstanding, Amount | $ 60,230,000 us-gaap_LettersOfCreditOutstandingAmount | $ 66,054,000 us-gaap_LettersOfCreditOutstandingAmount |
Voluntary Severance Incentive Program |  |  | 13,304,000 cnx_VoluntarySeveranceIncentiveProgram
Non-Pension Multiemployer Plans [Domain] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Letters of Credit Outstanding, Amount | 21,394,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_NonPensionMultiemployerPlansDomain | 60,741,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_NonPensionMultiemployerPlansDomain | 63,614,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_NonPensionMultiemployerPlansDomain
Retiree Health Benefit Act of 1992 [Domain] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Multiemployer Plan, Period Contributions | 10,121,000 us-gaap_MultiemployerPlanPeriodContributions / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_RetireeHealthBenefitActOf1992Domain | 11,435,000 us-gaap_MultiemployerPlanPeriodContributions / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_RetireeHealthBenefitActOf1992Domain | 12,358,000 us-gaap_MultiemployerPlanPeriodContributions / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_RetireeHealthBenefitActOf1992Domain
Multiemployer Plan, Withdrawal Obligation | 110,864,000 us-gaap_MultiemployerPlansWithdrawalObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_RetireeHealthBenefitActOf1992Domain |  |
401k Defined Contribution [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined Contribution Plan, Cost Recognized | $ 21,606,000 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_A401KDefinedContributionMember | $ 23,748,000 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_A401KDefinedContributionMember | $ 24,127,000 us-gaap_DefinedContributionPlanCostRecognized / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = cnx_A401KDefinedContributionMember

X
- Definition CONSOL Energy offered a voluntary severance incentive program (VSIP) to active salaried corporate and operation support employees with 30 years of service, or more. Under this program, eligible employees who accepted the offer will receive a severance payment equal to one year's salary and the 2013 accrued vacation earned as of December 31, 2012. This Liability will be paid in January 2013. + References No definition available. + Details
Name: | cnx_VoluntarySeveranceIncentiveProgram
Namespace Prefix: | cnx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450702-114947 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450691-114947 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450657-114947 + Details
Name: | us-gaap_MultiemployerPlanPeriodContributions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References No definition available. + Details
Name: | us-gaap_MultiemployerPlansWithdrawalObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=cnx_A401KDefinedContributionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=cnx_NonPensionMultiemployerPlansDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=cnx_RetireeHealthBenefitActOf1992Domain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |