$CNX
CNX Resources Corp Stock $cnx

$cnx Overview Financials Valuation SEC Filings Company Website

2013 Form 10-K Financial Statement

#000107041214000005 Filed on February 07, 2014

Income Statement

Concept	2013	2012 Q4	2012
Revenue	$3.300B	$808.2M	$3.678B
YoY Change	-10.27%	-41.58%	-15.98%
Cost Of Revenue	$1.868B	-$374.2M	$2.001B
YoY Change	-6.69%	-138.58%	-23.16%
Gross Profit	$1.253B	-$91.60M	$1.281B
YoY Change	-2.17%	-118.74%	-21.57%
Gross Profit Margin	37.98%	-11.33%	34.83%
Selling, General & Admin	$90.41M	-$112.8M	$90.74M
YoY Change	-0.37%	-190.6%	-20.85%
% of Gross Profit	7.21%		7.08%
Research & Development	$61.10M		$39.00M
YoY Change	56.67%
% of Gross Profit	4.88%		3.04%
Depreciation & Amortization	$500.2M	-$35.90M	$427.1M
YoY Change	17.11%	-0.28%	-0.8%
% of Gross Profit	39.91%		33.34%
Operating Expenses	$1.316B	-$148.7M	$1.458B
YoY Change	-9.76%	-153.82%	1171.7%
Operating Profit	-$62.38M	$57.10M	-$176.9M
YoY Change	-64.74%	-73.13%	-111.65%
Interest Expense	$219.2M	-$51.30M	$220.0M
YoY Change	-0.38%	-12.16%	-11.4%
% of Operating Profit		-89.84%
Other Income/Expense, Net	$95.54M	$102.0M	$81.03M
YoY Change	17.9%	22.01%	172.37%
Pretax Income	$46.08M	$107.8M	$406.7M
YoY Change	-88.67%	-54.65%	-53.41%
Income Tax	-$33.19M	$28.30M	$88.73M
% Of Pretax Income	-72.03%	26.25%	21.82%
Net Earnings	$660.4M	$149.9M	$388.5M
YoY Change	70.01%	-23.38%	-38.58%
Net Earnings / Revenue	20.02%	18.55%	10.56%
Basic Earnings Per Share	$2.89	$0.66	$1.71
Diluted Earnings Per Share	$2.87	$0.65	$1.70
COMMON SHARES
Basic Shares Outstanding	228.7M shares	227.9M shares	227.6M shares
Diluted Shares Outstanding	230.1M shares	229.9M shares	229.1M shares

Balance Sheet

Concept	2013	2012 Q4	2012
SHORT-TERM ASSETS
Cash & Short-Term Investments	$327.0M	$22.00M	$22.00M
YoY Change	1386.36%	-94.15%	-94.15%
Cash & Equivalents	$327.0M	$21.86M	$22.00M
Short-Term Investments
Other Short-Term Assets	$347.0M	$430.0M	$430.0M
YoY Change	-19.3%	13.16%	13.16%
Inventory	$158.0M	$170.8M	$171.0M
Prepaid Expenses		$148.4M
Receivables	$333.0M	$428.3M	$466.0M
Other Receivables	$280.0M	$131.1M	$450.0M
Total Short-Term Assets	$1.446B	$1.539B	$1.539B
YoY Change	-6.04%	-18.91%	-18.91%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.442B	$10.19B	$10.19B
YoY Change	-7.35%	9.27%	9.28%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$292.0M	$222.8M	$223.0M
YoY Change	30.94%	22.41%	22.53%
Other Assets	$214.0M	$216.2M	$1.019B
YoY Change	-79.0%	-25.15%	24.42%
Total Long-Term Assets	$9.948B	$11.46B	$11.46B
YoY Change	-13.19%	7.82%	7.82%
TOTAL ASSETS
Total Short-Term Assets	$1.446B	$1.539B	$1.539B
Total Long-Term Assets	$9.948B	$11.46B	$11.46B
Total Assets	$11.39B	$13.00B	$13.00B
YoY Change	-12.34%	3.77%	3.77%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$515.0M	$498.5M	$499.0M
YoY Change	3.21%	-4.5%	-4.41%
Accrued Expenses	$159.0M	$546.0M	$168.0M
YoY Change	-5.36%	-29.1%	-78.18%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$63.00M	$63.00M
YoY Change	-100.0%
Long-Term Debt Due	$169.0M	-$4.126M	$155.0M
YoY Change	9.03%	-64.91%	638.1%
Total Short-Term Liabilities	$1.120B	$1.387B	$1.387B
YoY Change	-19.25%	-0.09%	-0.07%
LONG-TERM LIABILITIES
Long-Term Debt	$3.164B	$3.124B	$3.173B
YoY Change	-0.28%	0.04%	-0.13%
Other Long-Term Liabilities	$1.861B	$118.3M	$4.157B
YoY Change	-55.23%	-5.31%	-4.41%
Total Long-Term Liabilities	$5.025B	$3.242B	$7.330B
YoY Change	-31.45%	-0.16%	-2.6%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.120B	$1.387B	$1.387B
Total Long-Term Liabilities	$5.025B	$3.242B	$7.330B
Total Liabilities	$6.387B	$9.044B	$9.044B
YoY Change	-29.38%	1.45%	1.45%
SHAREHOLDERS EQUITY
Retained Earnings		$2.403B
YoY Change		9.97%
Common Stock		$2.284M
YoY Change		0.48%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$609.0K
YoY Change		-93.48%
Treasury Stock Shares
Shareholders Equity	$5.006B	$3.954B	$3.954B
YoY Change
Total Liabilities & Shareholders Equity	$11.39B	$13.00B	$13.00B
YoY Change	-12.34%	3.77%	3.77%

Cashflow Statement

Concept	2013	2012 Q4	2012
OPERATING ACTIVITIES
Net Income	$660.4M	$149.9M	$388.5M
YoY Change	70.01%	-23.38%	-38.58%
Depreciation, Depletion And Amortization	$500.2M	-$35.90M	$427.1M
YoY Change	17.11%	-0.28%	-0.8%
Cash From Operating Activities	$658.8M	$197.9M	$728.1M
YoY Change	-9.52%	-28.09%	-52.34%
INVESTING ACTIVITIES
Capital Expenditures	$1.496B	-$93.50M	$1.245B
YoY Change	20.12%	-48.31%	5.7%
Acquisitions			$0.00
YoY Change
Other Investing Activities	$1.294B	-$320.1M	$48.29M
YoY Change	2579.63%	92.48%	-93.54%
Cash From Investing Activities	-$202.0M	-$413.6M	-$1.000B
YoY Change	-79.81%	19.12%	72.92%
FINANCING ACTIVITIES
Cash Dividend Paid	$85.83M		$142.3M
YoY Change	-39.67%		47.66%
Common Stock Issuance & Retirement, Net	$3.727M		$8.278M
YoY Change	-54.98%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$151.2M	6.600M	-$81.58M
YoY Change	85.39%	-126.72%	-86.54%
NET CHANGE
Cash From Operating Activities	$658.8M	197.9M	$728.1M
Cash From Investing Activities	-$202.0M	-413.6M	-$1.000B
Cash From Financing Activities	-$151.2M	6.600M	-$81.58M
Net Change In Cash	$305.6M	-209.1M	-$353.9M
YoY Change	-186.35%	116.24%	-203.19%
FREE CASH FLOW
Cash From Operating Activities	$658.8M	$197.9M	$728.1M
Capital Expenditures	$1.496B	-$93.50M	$1.245B
Free Cash Flow	-$837.3M	$291.4M	-$517.4M
YoY Change	61.83%	-36.11%	-248.15%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	514580000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	498515000	USD
CY2012Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	USD
CY2013Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	USD
CY2012Q4	us-gaap	Accounts Receivable From Securitization AccountsReceivableFromSecuritization	37846000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	332574000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	428328000	USD
CY2012	us-gaap	Accretion Expense AccretionExpense	37922000	USD
CY2013	us-gaap	Accretion Expense AccretionExpense	41909000	USD
CY2011	us-gaap	Accretion Of Discount AccretionOfDiscount	56698000	USD
CY2012	us-gaap	Accretion Of Discount AccretionOfDiscount	-39203000	USD
CY2013	us-gaap	Accretion Of Discount AccretionOfDiscount	61539000	USD
CY2013Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	26305000	USD
CY2012Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	35943000	USD
CY2013Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	30371000	USD
CY2012Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	28744000	USD
CY2012Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	34219000	USD
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	0	USD
CY2012Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	34219000	USD
CY2013Q4	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	9552000	USD
CY2012Q4	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	20582000	USD
CY2012Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	39172000	USD
CY2013Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	38953000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3613499000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4136247000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	42493000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	76761000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-325117000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-747342000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2296908000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2364592000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	47838000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	66042000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	48842000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-2075000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	6028000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	7329000	USD
CY2013Q4	us-gaap	Advances For Gas Exploration Development And Production Amount AdvancesForGasExplorationDevelopmentAndProductionAmount	22668000	USD
CY2012Q4	us-gaap	Advances For Gas Exploration Development And Production Amount AdvancesForGasExplorationDevelopmentAndProductionAmount	8229000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	41127	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	42131	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	56987	USD
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3061583	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1156018	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3368376	shares
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	539177000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	500648000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	600875000	USD
CY2012	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	-36086000	USD
CY2013	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	-38198000	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	42558000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	40832000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	146002000	USD
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	175603000	USD
CY2013Q4	us-gaap	Assets Assets	11393667000	USD
CY2012Q4	us-gaap	Assets Assets	12997594000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	1445592000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1539094000	USD
CY2013Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	2614251000	USD
CY2013Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	149230000	USD
CY2013	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	14907000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2013Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	96015000	USD
CY2012Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	93745000	USD
CY2013Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	8498000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	49413000	USD
CY2013Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	47596000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	71043000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	12059000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	8128000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	8758000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	9842000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	10984000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	21272000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	14949000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	56094000	USD
CY2012Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	44726000	USD
CY2013Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	50371000	USD
CY2012Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	-959291000	USD
CY2013Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	-1187409000	USD
CY2012Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	5983151000	USD
CY2013Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	6931183000	USD
CY2013Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	5743774000	USD
CY2012Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	5023860000	USD
CY2012Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	1596838000	USD
CY2013Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	1670404000	USD
CY2012Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	1006882000	USD
CY2013Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	1058008000	USD
CY2012Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	1266017000	USD
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	228094712	shares
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	2294000	USD
CY2013Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	1463406000	USD
CY2013Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	688548000	USD
CY2012Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	492364000	USD
CY2013Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	17728000	USD
CY2013Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	0	USD
CY2013Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	17728000	USD
CY2013	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	35438000	USD
CY2012	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	107079000	USD
CY2011	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	175633000	USD
CY2011Q2	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	49472000	USD
CY2012Q4	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	13426000	USD
CY2011Q1	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	49293000	USD
CY2011Q3	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	27430000	USD
CY2012Q1	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	14061000	USD
CY2013Q4	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	3946000	USD
CY2012Q2	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	10125000	USD
CY2013Q3	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	11563000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	327420000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	21862000	USD
CY2011Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	32794000	USD
CY2013Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	21862000	USD
CY2012Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	375736000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	375736000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	342942000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	305558000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-353874000	USD
CY2013	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.375
CY2013	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-520000	USD
CY2011	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-547000	USD
CY2012	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-601000	USD
CY2012	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-328789000	USD
CY2013	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	777145000	USD
CY2011	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-203310000	USD
CY2013	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	105206000	USD
CY2012	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	270771000	USD
CY2011	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	198735000	USD
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.625
CY2011	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.425
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	226162133	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	227056212	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	229145736	shares
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	705281000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1081281000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	442285000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	2284000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	705281000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1082667000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	442682000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-1386000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-397000	USD
CY2013	us-gaap	Cost Of Purchased Oil And Gas CostOfPurchasedOilAndGas	4837000	USD
CY2011	us-gaap	Cost Of Purchased Oil And Gas CostOfPurchasedOilAndGas	3831000	USD
CY2012	us-gaap	Cost Of Purchased Oil And Gas CostOfPurchasedOilAndGas	2711000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	3253610000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	3270839000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	3504119000	USD
CY2013	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	0	USD
CY2012	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	50005000	USD
CY2011	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	6673000	USD
CY2013	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	260477000	USD
CY2011	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	58731000	USD
CY2012	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	28634000	USD
CY2013	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	629100000	USD
CY2012	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	339608000	USD
CY2011	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	463401000	USD
CY2011	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	131419000	USD
CY2013	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	95413000	USD
CY2012	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	130312000	USD
CY2013	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	984990000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3588000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	77829000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	193624000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1508000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-10903000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	32150000	USD
CY2012Q4	us-gaap	Debt Current DebtCurrent	12484000	USD
CY2011	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	660224000	USD
CY2012	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	548559000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	44727000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	161474000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	6728000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	31594000	USD
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	7763000	USD
CY2013Q4	us-gaap	Debt Current DebtCurrent	11455000	USD
CY2013Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3124143000	USD
CY2012	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	0	USD
CY2013	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	0	USD
CY2011	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	-559132000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	30034000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23300000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-32125000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1765000	USD
CY2013	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2373000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10899000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-36777000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	-1057148000	USD
CY2012Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	-1098738000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4652000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-32407000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-14166000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	861330000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1033340000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	856830000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1025808000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	84777000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	211303000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	168658000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	27277000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	116893	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	51765	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	27277	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	83077000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	347584000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	149435000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	160567000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	23103000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	22489000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	159933000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	54609000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	46164000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	44580000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	31008000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	25191000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	14330000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	337836000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	20978000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	26716000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	35655000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	20804000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	37306000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	57370000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-7532000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-4500000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-241908000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-31340000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	-51006000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	-27741000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	-33950000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	-38105000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	326685000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	242643000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-37295000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-37277000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	-976505000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	-954007000	USD
CY2013Q4	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	4593000	USD
CY2012Q4	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	6937000	USD
CY2013Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	48252000	USD
CY2012Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	218004000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	-824103000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	-367610000	USD
CY2012	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	106299000	USD
CY2013	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	86481000	USD
CY2011	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	119262000	USD
CY2011	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-47792000	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-53853000	USD
CY2013	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-32164000	USD
CY2012Q1	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0457
CY2012	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0451
CY2011	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	71470000	USD
CY2013	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	93799000	USD
CY2012	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	52446000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	430577000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	427115000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	461122000	USD
CY2013	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	-79899000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	-95007000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	-189259000	USD
CY2013	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"></font></div><div style="line-height:120%;padding-top:12px;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">CONSOL Energy formally assesses both at inception of the hedge and on an ongoing basis whether each derivative is highly effective in offsetting changes in the fair values or the cash flows of the hedged item. If it is determined that a derivative is not highly effective as a hedge or if a derivative ceases to be a highly effective hedge, CONSOL Energy will discontinue hedge accounting prospectively.</font></div></div>
CY2012	us-gaap	Direct Operating Cost Royalty Expense DirectOperatingCostRoyaltyExpense	38867000	USD
CY2011	us-gaap	Direct Operating Cost Royalty Expense DirectOperatingCostRoyaltyExpense	59331000	USD
CY2013	us-gaap	Direct Operating Cost Royalty Expense DirectOperatingCostRoyaltyExpense	53028000	USD
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	969685000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-84972000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	90587000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	70114000	USD
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	579792000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-49178000	USD
CY2011Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	14814000	USD
CY2012Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	42060000	USD
CY2011Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-3050000	USD
CY2011Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	16290000	USD
CY2013Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	591144000	USD
CY2012Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	1904000	USD
CY2012Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-21375000	USD
CY2013Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	8120000	USD
CY2012	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-20473000	USD
CY2013	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-389893000	USD
CY2011	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	35794000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	-4887320000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	-2055834000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	-3130318000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	11777550000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	14804398000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	21602594000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-1674829000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-3902875000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-2450589000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-1711251000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-4025626000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-2989435000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	2792040000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	6568131000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	4877499000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-5262635000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-7105962000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-4823670000	USD
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	736206000	USD
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	1680811000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	1747181000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Payable And Accrued Liabilities DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities	28239000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Payable And Accrued Liabilities DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities	2513038000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Deferred Tax Assets DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets	0	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Deferred Tax Assets DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets	63327000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Deferred Tax Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssetsNoncurrent	771270000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Deferred Tax Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssetsNoncurrent	0	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Inventory DisposalGroupIncludingDiscontinuedOperationInventory	0	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Inventory DisposalGroupIncludingDiscontinuedOperationInventory	76958000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	782112000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	0	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Other Current Assets DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets	0	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Current Assets DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets	8945000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	15644000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Other Noncurrent Assets DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets	0	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Noncurrent Assets DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets	10842000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Postretirement Plan Benefit Obligation DisposalGroupIncludingDiscontinuedOperationPostretirementPlanBenefitObligation	1949801000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Postretirement Plan Benefit Obligation DisposalGroupIncludingDiscontinuedOperationPostretirementPlanBenefitObligation	0	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Net DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet	1682909000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Net DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet	0	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	1717926000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	1740196000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	2598875000	USD
CY2012	us-gaap	Dividends Cash DividendsCash	-142278000	USD
CY2013	us-gaap	Dividends Cash DividendsCash	-85832000	USD
CY2011	us-gaap	Dividends Cash DividendsCash	-96356000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.89
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.22
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.28
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.87
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.70
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.76
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.28
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.20
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.721	Rate
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.218	Rate
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.219	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.000	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.101	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.026	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	0.046	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	0.002	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	0.005	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Other EffectiveIncomeTaxRateReconciliationDeductionsOther	0.053	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Deductions Other EffectiveIncomeTaxRateReconciliationDeductionsOther	0.003	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Other EffectiveIncomeTaxRateReconciliationDeductionsOther	0.007	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.025	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.018	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.123	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-1.109	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.122	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.083	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.052	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.021	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.031	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.003	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.015	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	-0.002	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.004	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.000	Rate
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.000	Rate
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.006	Rate
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.002	Rate
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	20508	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	15464	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	15841	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	21769	USD
CY2012Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	53452000	USD
CY2013Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	31944000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	222830000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	291675000	USD
CY2013Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	18836000	USD
CY2012Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	19700000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	8281000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	8678000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2929000	USD
CY2013	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	8596000	USD
CY2012	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	3320000	USD
CY2011	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	5108000	USD
CY2013	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	383308000	USD
CY2012	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	14645000	USD
CY2011	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	324755000	USD
CY2013	us-gaap	Freight Costs FreightCosts	35438000	USD
CY2012	us-gaap	Freight Costs FreightCosts	107079000	USD
CY2011	us-gaap	Freight Costs FreightCosts	175444000	USD
CY2012Q4	us-gaap	Freight Costs FreightCosts	13426000	USD
CY2011Q1	us-gaap	Freight Costs FreightCosts	49293000	USD
CY2011Q3	us-gaap	Freight Costs FreightCosts	27430000	USD
CY2011Q2	us-gaap	Freight Costs FreightCosts	49472000	USD
CY2012Q2	us-gaap	Freight Costs FreightCosts	10125000	USD
CY2013Q4	us-gaap	Freight Costs FreightCosts	3946000	USD
CY2012Q1	us-gaap	Freight Costs FreightCosts	14061000	USD
CY2013Q3	us-gaap	Freight Costs FreightCosts	11563000	USD
CY2012	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-282006000	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-45673000	USD
CY2013	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-67480000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	282006000	USD
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	67480000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	45673000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-16090000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2013Q4	us-gaap	Gas And Oil Area Developed Gross GasAndOilAreaDevelopedGross	542388000	acre
CY2013Q4	us-gaap	Gas And Oil Area Developed Net GasAndOilAreaDevelopedNet	527693000	acre
CY2013Q4	us-gaap	Gas And Oil Area Undeveloped Gross GasAndOilAreaUndevelopedGross	105019000	acre
CY2013Q4	us-gaap	Gas And Oil Area Undeveloped Net GasAndOilAreaUndevelopedNet	59346000	acre
CY2013Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	1612325000	USD
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	681675000	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	317959000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	79264000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	80906000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	155789000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-26316000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	107580000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	146595000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	8562000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-72169000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-3725000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	46075000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	872926000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	406687000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.09
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.31
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	579792000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	27048000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	79264000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	317959000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.40
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.01
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.35
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.12
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.68
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.47
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.36
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.02
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.64
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.04
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.31
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.35
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.39
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.98
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.68
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.12
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.47
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.35
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.04
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.64
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.02
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	70114000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.31
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.22
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	2.54
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.19
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	2.58
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.03
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.09
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	2.52
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.31
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.22
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.07
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.07
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.18
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	2.56
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	24663000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	33133000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191251000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	88728000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-33189000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-22618000	USD
CY2013	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-4659000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy	2112000	USD
CY2013	us-gaap	Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy	2112000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy	2112000	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	2956000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	2575000	USD
CY2013	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	2458000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	-21938000	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	-7215000	USD
CY2013	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	5680000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	305524000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	142340000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	16126000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-72577000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-49572000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-51104000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2399000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-8737000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2926000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	6004000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-1406000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	2257000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	0	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	1765000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	-1822000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-5188000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	3000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-925000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	144405000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	35079000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	121245000	USD
CY2013Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	10705000	USD
CY2012Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	0	USD
CY2011	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-83770000	USD
CY2012	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-20218000	USD
CY2013	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	135970000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	142843000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-23918000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-99944000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable From Securitization IncreaseDecreaseInAccountsReceivableFromSecuritization	200000000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable From Securitization IncreaseDecreaseInAccountsReceivableFromSecuritization	37846000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable From Securitization IncreaseDecreaseInAccountsReceivableFromSecuritization	-37846000	USD
CY2011	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	155619000	USD
CY2012	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-153104000	USD
CY2013	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-486518000	USD
CY2013	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-578951000	USD
CY2012	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	619045000	USD
CY2011	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	130746000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	12894000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5509000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	21166000	USD
CY2012	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	12876000	USD
CY2013	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	5844000	USD
CY2011	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	38413000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-7041000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	23534000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	31146000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	24786000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	42597000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	23001000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	78530000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-50790000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-31701000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	12435000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	3047000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-3219000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	48294000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-68673000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1548243	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2323230	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1349314	shares
CY2011	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-15547000	USD
CY2012	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-38054000	USD
CY2013	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-43717000	USD
CY2013	us-gaap	Interest Expense InterestExpense	219198000	USD
CY2012	us-gaap	Interest Expense InterestExpense	220042000	USD
CY2011	us-gaap	Interest Expense InterestExpense	248344000	USD
CY2013	us-gaap	Interest Expense Debt InterestExpenseDebt	260233000	USD
CY2011	us-gaap	Interest Expense Debt InterestExpenseDebt	264080000	USD
CY2012	us-gaap	Interest Expense Debt InterestExpenseDebt	256800000	USD
CY2011	us-gaap	Interest Expense Other InterestExpenseOther	-189000	USD
CY2012	us-gaap	Interest Expense Other InterestExpenseOther	1296000	USD
CY2013	us-gaap	Interest Expense Other InterestExpenseOther	2682000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	8919000	USD
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	15889000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	28937000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	209580000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	242587000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	212364000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	63687000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	63600000	USD
CY2013Q4	us-gaap	Inventory Net InventoryNet	157914000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	170808000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1119971000	USD
CY2012Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	1573000	USD
CY2013Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2013Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	28239000	USD
CY2012Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	233214000	USD
CY2013Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	87707000	USD
CY2012Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	81993000	USD
CY2012Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	222830000	USD
CY2013Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	291675000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	75696000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	90128000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	83064000	USD
CY2013Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	66055000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	9043849000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	6387378000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12997594000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11393667000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1387099000	USD
CY2013Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	0	USD
CY2012Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	2278251000	USD
CY2013Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	28530000	USD
CY2012Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	2100000	USD
CY2013Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	200000000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	3118920000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	3127726000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3163559000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3174586000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	12484000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	11455000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-4126000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-2957000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1609159000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	3364000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1403000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1502484000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-578524000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-201981000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-375214000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-979126000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-671621000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	658776000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	728113000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3457000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	4276000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3123600000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3115963000	USD
CY2013Q4	us-gaap	Loss Contingency Range Of Possible Loss Portion Not Accrued LossContingencyRangeOfPossibleLossPortionNotAccrued	318786000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	-47000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	0	USD
CY2011	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	8464000	USD
CY2012	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	350000	USD
CY2013	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	1433000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-606140000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-81577000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-151237000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-605593000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-150717000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-80976000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1000410000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1527606000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	1328871000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	457342000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	553570000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	632497000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	388470000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	660442000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	152739000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	149903000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	-11368000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	97196000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	738183000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	-12526000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	-63651000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	-1564000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1386000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-34268000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	60925000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	53990000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	121484000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-397000	USD
CY2013	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	1295956000	USD
CY2011	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-339098000	USD
CY2012	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-1480573000	USD
CY2012Q4	us-gaap	Notes And Loans Payable Current NotesAndLoansPayableCurrent	25073000	USD
CY2013Q4	us-gaap	Notes And Loans Payable Current NotesAndLoansPayableCurrent	0	USD
CY2012Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	318387000	USD
CY2013Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	25861000	USD
CY2013Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	125000	USD
CY2012Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	25977000	USD
CY2013Q4	us-gaap	Oil And Gas Delivery Commitments And Contracts Remaining Contractual Volume OilAndGasDeliveryCommitmentsAndContractsRemainingContractualVolume	60.3	MMcf
CY2013Q4	us-gaap	Oil And Gas Reclamation Liability Noncurrent OilAndGasReclamationLiabilityNoncurrent	113481000	USD
CY2012Q4	us-gaap	Oil And Gas Reclamation Liability Noncurrent OilAndGasReclamationLiabilityNoncurrent	70753000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	438026000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	90565000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	41221000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	66536000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	73158000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	85225000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	81321000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	144352000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	122902000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	565697000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	545748000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	1267533000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	505813000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	216235000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	214013000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	32813000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-456493000	USD
CY2012	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-129231000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	185881000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-75019000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	105693000	USD
CY2013	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2012	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	210000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1178375000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	422225000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	72784000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	54212000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	121484000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	53990000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	60925000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-310743000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-155932000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-133889000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	45631000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	200700000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	114240000	USD
CY2013	us-gaap	Other Income OtherIncome	178963000	USD
CY2011	us-gaap	Other Income OtherIncome	139132000	USD
CY2012	us-gaap	Other Income OtherIncome	395176000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	131355000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	118307000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32019000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	36366000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	29751000	USD
CY2012Q4	us-gaap	Other Postretirement Benefits Payable Current And Noncurrent OtherPostretirementBenefitsPayableCurrentAndNoncurrent	58452000	USD
CY2013Q4	us-gaap	Other Postretirement Benefits Payable Current And Noncurrent OtherPostretirementBenefitsPayableCurrentAndNoncurrent	60847000	USD
CY2012Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	882600000	USD
CY2013Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	961127000	USD
CY2012Q4	us-gaap	Other Receivables OtherReceivables	131131000	USD
CY2013Q4	us-gaap	Other Receivables OtherReceivables	243973000	USD
CY2012Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	131131000	USD
CY2013Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	243973000	USD
CY2013	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	35712000	USD
CY2011	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-55876000	USD
CY2012	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	23451000	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	96356000	USD
CY2013	us-gaap	Payments Of Dividends PaymentsOfDividends	85832000	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	142278000	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	15686000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1496056000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1245497000	USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	148431000	USD
CY2013Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	135842000	USD
CY2012Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	381343000	USD
CY2013Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	381348000	USD
CY2013	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	625824000	USD
CY2011	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	463401000	USD
CY2012	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	333640000	USD
CY2013Q4	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	30333	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3727000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	8278000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	250000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	37846000	USD
CY2013	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	-37846000	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	-200000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	778000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-9452000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	53024000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-284000000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	747285000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	645621000	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	483969000	USD
CY2012	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	-9485000	USD
CY2011	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	9033000	USD
CY2013	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	-2151000	USD
CY2011	us-gaap	Production Tax Expense ProductionTaxExpense	26261000	USD
CY2013	us-gaap	Production Tax Expense ProductionTaxExpense	28677000	USD
CY2012	us-gaap	Production Tax Expense ProductionTaxExpense	26145000	USD
CY2013Q4	us-gaap	Productive Gas Wells Number Of Wells Gross ProductiveGasWellsNumberOfWellsGross	15063000
CY2013Q4	us-gaap	Productive Gas Wells Number Of Wells Net ProductiveGasWellsNumberOfWellsNet	12874000
CY2013	us-gaap	Profit Loss ProfitLoss	659056000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	632497000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	388073000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	13578509000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12121557000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9442262000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10190967000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	8508058000	USD
CY2012Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	529758000	USD
CY2013Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	393372000	USD
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	517178000	MMcf
CY2013	us-gaap	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	1633426000	MMcf
CY2012	us-gaap	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	954378000	MMcf
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Improved Recovery ProvedDevelopedAndUndevelopedReservesImprovedRecovery	-9976000	MMcf
CY2013	us-gaap	Proved Developed And Undeveloped Reserves Improved Recovery ProvedDevelopedAndUndevelopedReservesImprovedRecovery	104757000	MMcf
CY2012	us-gaap	Proved Developed And Undeveloped Reserves Improved Recovery ProvedDevelopedAndUndevelopedReservesImprovedRecovery	-526611000	MMcf
CY2010Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	3731597000	MMcf
CY2012Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	3993458000	MMcf
CY2011	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	0	USD
CY2012Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1596838000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	236344000	USD
CY2012	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	14447000	USD
CY2013	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	12140000	USD
CY2011	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	189000	USD
CY2011Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	3480027000	MMcf
CY2013Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	5731214000	MMcf
CY2013	us-gaap	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	172380000	MMcf
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	153504000	MMcf
CY2012	us-gaap	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	156325000	MMcf
CY2013	us-gaap	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	171953000	MMcf
CY2012	us-gaap	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	241989000	MMcf
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	-73837000	MMcf
CY2012	us-gaap	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	0	MMcf
CY2013	us-gaap	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	0	MMcf
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	-531431000	MMcf
CY2013Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1670404000	USD
CY2013	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	0	USD
CY2012	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	0	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	48294000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	0	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	0	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	20379000	USD
CY2013	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	229562000	USD
CY2012	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	202956000	USD
CY2011	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	11080000	USD
CY2013	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	31544000	USD
CY2012	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	-16195000	USD
CY2013	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	-37846000	USD
CY2011	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	200000000	USD
CY2011	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	206821000	USD
CY2011	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	623556000	USD
CY2012	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	608740000	USD
CY2013	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	723979000	USD
CY2012	us-gaap	Results Of Operations Expense Other ResultsOfOperationsExpenseOther	39029000	USD
CY2011	us-gaap	Results Of Operations Expense Other ResultsOfOperationsExpenseOther	18095000	USD
CY2011	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	199484000	USD
CY2012	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	104423000	USD
CY2013	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	86623000	USD
CY2011	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	79873000	USD
CY2012	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	39827000	USD
CY2013	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	32917000	USD
CY2012	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	64596000	USD
CY2011	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	119611000	USD
CY2013	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	53706000	USD
CY2011	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	106477000	USD
CY2012	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	90835000	USD
CY2013	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	96600000	USD
CY2012	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	713163000	USD
CY2013	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	810602000	USD
CY2011	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	823040000	USD
CY2012	us-gaap	Results Of Operations Sales Revenue To Unaffiliated Enterprises ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises	660442000	USD
CY2013	us-gaap	Results Of Operations Sales Revenue To Unaffiliated Enterprises ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises	740869000	USD
CY2011	us-gaap	Results Of Operations Sales Revenue To Unaffiliated Enterprises ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises	751767000	USD
CY2012	us-gaap	Results Of Operations Transportation Costs ResultsOfOperationsTransportationCosts	160575000	USD
CY2013	us-gaap	Results Of Operations Transportation Costs ResultsOfOperationsTransportationCosts	201023000	USD
CY2011	us-gaap	Results Of Operations Transportation Costs ResultsOfOperationsTransportationCosts	142339000	USD
CY2012Q4	us-gaap	Retail Related Inventory Merchandise RetailRelatedInventoryMerchandise	35363000	USD
CY2013Q4	us-gaap	Retail Related Inventory Merchandise RetailRelatedInventoryMerchandise	38263000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2402551000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2964520000	USD
CY2013	us-gaap	Revenue From Purchased Oil And Gas RevenueFromPurchasedOilAndGas	6531000	USD
CY2012	us-gaap	Revenue From Purchased Oil And Gas RevenueFromPurchasedOilAndGas	3316000	USD
CY2011	us-gaap	Revenue From Purchased Oil And Gas RevenueFromPurchasedOilAndGas	4344000	USD
CY2011	us-gaap	Revenue Mineral Sales RevenueMineralSales	3991007000	USD
CY2013	us-gaap	Revenue Mineral Sales RevenueMineralSales	3015551000	USD
CY2012	us-gaap	Revenue Mineral Sales RevenueMineralSales	3122550000	USD
CY2013	us-gaap	Revenue Recognition Services Royalty Fees RevenueRecognitionServicesRoyaltyFees	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;padding-left:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Royalty Recognition: </font></div><div style="line-height:120%;text-align:justify;padding-left:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Royalty expenses for gas rights are included in Gas Royalty Interest Costs when the related revenue for the gas sale is recognized. Royalty expenses for coal rights are included in Cost of Goods Sold and Other Operating Charges when the related revenue for the coal sale is recognized. These royalty expenses are paid in cash in accordance with the terms of each agreement. Revenues for gas and coal sold related to production under royalty contracts, versus owned by CONSOL Energy, are recorded on a gross basis.</font></div></div>
CY2011	us-gaap	Revenues Revenues	4377045000	USD
CY2012	us-gaap	Revenues Revenues	3677526000	USD
CY2013	us-gaap	Revenues Revenues	3299685000	USD
CY2011	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-83580000	USD
CY2013	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	132900000	USD
CY2012	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-104158000	USD
CY2011	us-gaap	Royalty Revenue RoyaltyRevenue	17969000	USD
CY2012	us-gaap	Royalty Revenue RoyaltyRevenue	16853000	USD
CY2013	us-gaap	Royalty Revenue RoyaltyRevenue	16906000	USD
CY2011	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-217186000	USD
CY2013	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-365477000	USD
CY2012	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-104518000	USD
CY2011Q3	us-gaap	Sales Revenue Net SalesRevenueNet	681717000	USD
CY2012Q4	us-gaap	Sales Revenue Net SalesRevenueNet	808238000	USD
CY2011Q2	us-gaap	Sales Revenue Net SalesRevenueNet	807198000	USD
CY2011Q1	us-gaap	Sales Revenue Net SalesRevenueNet	878118000	USD
CY2013Q3	us-gaap	Sales Revenue Net SalesRevenueNet	753080000	USD
CY2013Q4	us-gaap	Sales Revenue Net SalesRevenueNet	772258000	USD
CY2012Q1	us-gaap	Sales Revenue Net SalesRevenueNet	799997000	USD
CY2012Q2	us-gaap	Sales Revenue Net SalesRevenueNet	759948000	USD
CY2012Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	37846000	USD
CY2013Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	0	USD
CY2013Q4	us-gaap	Securitized Assets And Any Other Financial Assets Managed Together Principal Amount Outstanding SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding	115000000	USD
CY2012Q4	us-gaap	Securitized Assets And Any Other Financial Assets Managed Together Principal Amount Outstanding SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding	200000000	USD
CY2013	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	90408000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	90740000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	114643000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	41127000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	42131000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	56987000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0082
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0118
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5510
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5480
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0073
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0161
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	31800000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	6072413	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	1671	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.47
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	14.58
CY2012Q4	us-gaap	Short Term Non Bank Loans And Notes Payable ShortTermNonBankLoansAndNotesPayable	25073000	USD
CY2013Q4	us-gaap	Short Term Non Bank Loans And Notes Payable ShortTermNonBankLoansAndNotesPayable	0	USD
CY2012	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-96749000	USD
CY2013	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-123976000	USD
CY2011	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	154137000	USD
CY2012Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	736206000	USD
CY2011Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1747181000	USD
CY2013Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1680811000	USD
CY2010Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1660821000	USD
CY2011	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	894079	shares
CY2013	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1051024	shares
CY2012	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1038500	shares
CY2011	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1312000	USD
CY2013	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-12032000	USD
CY2012	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-19641000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	5006289000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	3953792000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3953745000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5006289000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2936013000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3610885000	USD
CY2013	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	160627000	USD
CY2011	us-gaap	Taxes Other TaxesOther	174392000	USD
CY2012	us-gaap	Taxes Other TaxesOther	162426000	USD
CY2013Q4	us-gaap	Subordinated Debt SubordinatedDebt	48945	USD
CY2012	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	162426000	USD
CY2011	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	174392000	USD
CY2013	us-gaap	Taxes Other TaxesOther	160627000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	609000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2012Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	1266017000	USD
CY2013Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	1463406000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	34786000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	34786000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	37586000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	4831000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	6200000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-3096000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-543000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1369000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-543000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-3096000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-1369000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-2800000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2071000	USD
CY2011	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	202883000	USD
CY2013	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	249043000	USD
CY2012	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	291309000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-align:left;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"></font></div><div style="line-height:120%;padding-top:18px;text-align:justify;padding-left:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates: </font></div><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and various disclosures. Actual results could differ from those estimates. The most significant estimates included in the preparation of the financial statements are related to business combinations, other postretirement benefits, coal workers' pneumoconiosis, workers' compensation, salary retirement benefits, stock-based compensation, asset retirement obligations, deferred income tax assets and liabilities, contingencies, and coal and gas reserves value.</font></div></div>
CY2013	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	4000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	230077942	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229003599	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229141767	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	227593524	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	226680369	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	228728628	shares
CY2013Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	30320000	USD
CY2012Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	25081000	USD
CY2013Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	71468000	USD
CY2012Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	60396000	USD
CY2012Q4	cnx	Accounts Receivable Securitized AccountsReceivableSecuritized	37846000	USD
CY2013Q4	cnx	Accounts Receivable Securitized AccountsReceivableSecuritized	0	USD
CY2011	cnx	Actuarially Determined Long Term Liability Tax Expense ActuariallyDeterminedLongTermLiabilityTaxExpense	-27416000	USD
CY2013	cnx	Actuarially Determined Long Term Liability Tax Expense ActuariallyDeterminedLongTermLiabilityTaxExpense	-35806000	USD
CY2012	cnx	Actuarially Determined Long Term Liability Tax Expense ActuariallyDeterminedLongTermLiabilityTaxExpense	-19720000	USD
CY2011	cnx	Actuarially Long Term Liabilities Netof Tax ActuariallyLongTermLiabilitiesNetofTax	44054000	USD
CY2013	cnx	Actuarially Long Term Liabilities Netof Tax ActuariallyLongTermLiabilitiesNetofTax	57993000	USD
CY2012	cnx	Actuarially Long Term Liabilities Netof Tax ActuariallyLongTermLiabilitiesNetofTax	32726000	USD
CY2013Q4	cnx	Airshafts Airshafts	397466000	USD
CY2012Q4	cnx	Airshafts Airshafts	366054000	USD
CY2013	cnx	Asset Retirement Obligation Other Change AssetRetirementObligationOtherChange	15429000	USD
CY2012	cnx	Asset Retirement Obligation Other Change AssetRetirementObligationOtherChange	-4139000	USD
CY2013	cnx	Benefit Obligations Assumed By Murray Energy BenefitObligationsAssumedByMurrayEnergy	2050656000	USD
CY2013Q4	cnx	Coal And Other Plant And Equipment CoalAndOtherPlantAndEquipment	3681051000	USD
CY2012Q4	cnx	Coal And Other Plant And Equipment CoalAndOtherPlantAndEquipment	3414940000	USD
CY2012Q4	cnx	Coal Properties And Surface Lands CoalPropertiesAndSurfaceLands	1164107000	USD
CY2013Q4	cnx	Coal Properties And Surface Lands CoalPropertiesAndSurfaceLands	1404056000	USD
CY2012	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	2221859000	USD
CY2011	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	2266560000	USD
CY2013	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	2228952000	USD
CY2012Q4	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	557094000	USD
CY2011Q1	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	601723000	USD
CY2011Q2	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	565601000	USD
CY2011Q3	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	543158000	USD
CY2013Q4	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	562386000	USD
CY2012Q1	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	612000000	USD
CY2012Q2	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	552126000	USD
CY2013Q3	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	560247000	USD
CY2012Q4	cnx	Disposal Group Discontinued Operations Long Term Debt DisposalGroupDiscontinuedOperationsLongTermDebt	1573000	USD
CY2013Q4	cnx	Disposal Group Discontinued Operations Long Term Debt DisposalGroupDiscontinuedOperationsLongTermDebt	0	USD
CY2012Q4	cnx	Disposal Group Discontinued Operations Pneumoconiosis Benefits DisposalGroupDiscontinuedOperationsPneumoconiosisBenefits	60645000	USD
CY2013Q4	cnx	Disposal Group Discontinued Operations Pneumoconiosis Benefits DisposalGroupDiscontinuedOperationsPneumoconiosisBenefits	0	USD
CY2012Q4	cnx	Disposal Group Discontinued Operations Workers Compensation DisposalGroupDiscontinuedOperationsWorkersCompensation	95252000	USD
CY2013Q4	cnx	Disposal Group Discontinued Operations Workers Compensation DisposalGroupDiscontinuedOperationsWorkersCompensation	0	USD
CY2012Q4	cnx	Disposal Groupincludingdiscontinuedoperations Mine Closing DisposalGroupincludingdiscontinuedoperationsMineClosing	156909000	USD
CY2013Q4	cnx	Disposal Groupincludingdiscontinuedoperations Mine Closing DisposalGroupincludingdiscontinuedoperationsMineClosing	0	USD
CY2012Q4	cnx	Drilling Cost DrillingCost	1550297000	USD
CY2013Q4	cnx	Drilling Cost DrillingCost	1937336000	USD
CY2013	cnx	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognitio EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognitio	1.79	USD
CY2013	cnx	Financing Related Fees FinancingRelatedFees	1737000	USD
CY2012	cnx	Financing Related Fees FinancingRelatedFees	1723000	USD
CY2011	cnx	Financing Related Fees FinancingRelatedFees	1986000	USD
CY2013Q4	cnx	Gas And Oil Acreage Unproved Net GasAndOilAcreageUnprovedNet	4212030000	acre
CY2013Q4	cnx	Gas Gathering Systems Net GasGatheringSystemsNet	1058008000	USD
CY2012Q4	cnx	Gas Gathering Systems Net GasGatheringSystemsNet	1006882000	USD
CY2013Q4	cnx	Gas Well Closing Liability Current GasWellClosingLiabilityCurrent	23971000	USD
CY2012Q4	cnx	Gas Well Closing Liability Current GasWellClosingLiabilityCurrent	9729000	USD
CY2012Q4	cnx	Gas Wells And Related Equipment GasWellsAndRelatedEquipment	492364000	USD
CY2013Q4	cnx	Gas Wells And Related Equipment GasWellsAndRelatedEquipment	688548000	USD
CY2013Q4	cnx	Letters Of Credit LettersOfCredit	200000000	USD
CY2012Q4	cnx	Long Term Disability Current LongTermDisabilityCurrent	4016000	USD
CY2013Q4	cnx	Long Term Disability Current LongTermDisabilityCurrent	4340000	USD
CY2013Q4	cnx	Mine Closing Liability Current MineClosingLiabilityCurrent	13628000	USD
CY2012Q4	cnx	Mine Closing Liability Current MineClosingLiabilityCurrent	9176000	USD
CY2012Q4	cnx	Mine Closing Liability Noncurrent MineClosingLiabilityNoncurrent	289818000	USD
CY2013Q4	cnx	Mine Closing Liability Noncurrent MineClosingLiabilityNoncurrent	320723000	USD
CY2013Q4	cnx	Mine Development MineDevelopment	354607000	USD
CY2012Q4	cnx	Mine Development MineDevelopment	262511000	USD
CY2013Q4	cnx	Mine Reclamation Liability Noncurrent MineReclamationLiabilityNoncurrent	40706000	USD
CY2012Q4	cnx	Mine Reclamation Liability Noncurrent MineReclamationLiabilityNoncurrent	47965000	USD
CY2012Q4	cnx	Other Gas Assets OtherGasAssets	82217000	USD
CY2013Q4	cnx	Other Gas Assets OtherGasAssets	126239000	USD
CY2013	cnx	Payments On Long Term Notes Including Redemption Premium PaymentsOnLongTermNotesIncludingRedemptionPremium	0	USD
CY2012	cnx	Payments On Long Term Notes Including Redemption Premium PaymentsOnLongTermNotesIncludingRedemptionPremium	0	USD
CY2011	cnx	Payments On Long Term Notes Including Redemption Premium PaymentsOnLongTermNotesIncludingRedemptionPremium	265785000	USD
CY2011	cnx	Pennsylvania Turnpike Settlement PennsylvaniaTurnpikeSettlement	0	USD
CY2013	cnx	Pennsylvania Turnpike Settlement PennsylvaniaTurnpikeSettlement	9000000	USD
CY2012	cnx	Pennsylvania Turnpike Settlement PennsylvaniaTurnpikeSettlement	0	USD
CY2012Q4	cnx	Pneumoconiosis Benefits PneumoconiosisBenefits	114136000	USD
CY2013Q4	cnx	Pneumoconiosis Benefits PneumoconiosisBenefits	111971000	USD
CY2012Q4	cnx	Pneumoconiosis Liability Current PneumoconiosisLiabilityCurrent	8838000	USD
CY2013Q4	cnx	Pneumoconiosis Liability Current PneumoconiosisLiabilityCurrent	9212000	USD
CY2013	cnx	Reclassificationsnetoftaxrelatedtodiscontinuedoperations Reclassificationsnetoftaxrelatedtodiscontinuedoperations	258250	USD
CY2011	cnx	Revenue From External Customers RevenueFromExternalCustomers	4237913000	USD
CY2012	cnx	Revenue From External Customers RevenueFromExternalCustomers	3282350000	USD
CY2013	cnx	Revenue From External Customers RevenueFromExternalCustomers	3120722000	USD
CY2013	cnx	Right Of Way Issuance RightOfWayIssuance	4536000	USD
CY2011	cnx	Right Of Way Issuance RightOfWayIssuance	12157000	USD
CY2012	cnx	Right Of Way Issuance RightOfWayIssuance	3966000	USD
CY2013	cnx	Royalty Interest Gas Revenue RoyaltyInterestGasRevenue	63202000	USD
CY2012	cnx	Royalty Interest Gas Revenue RoyaltyInterestGasRevenue	49405000	USD
CY2011	cnx	Royalty Interest Gas Revenue RoyaltyInterestGasRevenue	66929000	USD
CY2011	cnx	Segment Reporting Capital Expenditures SegmentReportingCapitalExpenditures	1178375000	USD
CY2012	cnx	Segment Reporting Capital Expenditures SegmentReportingCapitalExpenditures	1245497000	USD
CY2013	cnx	Segment Reporting Capital Expenditures SegmentReportingCapitalExpenditures	1496056000	USD
CY2011	cnx	Segment Reporting Intersegment Transfers SegmentReportingIntersegmentTransfers	0	USD
CY2012	cnx	Segment Reporting Intersegment Transfers SegmentReportingIntersegmentTransfers	0	USD
CY2013	cnx	Segment Reporting Intersegment Transfers SegmentReportingIntersegmentTransfers	0	USD
CY2012	cnx	Share Based Comp Expected Forfeiture Rate ShareBasedCompExpectedForfeitureRate	0.0200
CY2011	cnx	Share Based Comp Expected Forfeiture Rate ShareBasedCompExpectedForfeitureRate	0.0200
CY2012	cnx	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Te ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTe	4.40	USD
CY2011	cnx	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Ter ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTer	4.26	USD
CY2013Q4	cnx	Subsidence Liability SubsidenceLiability	98573000	USD
CY2012Q4	cnx	Subsidence Liability SubsidenceLiability	88939000	USD
CY2013Q4	cnx	Total Acreage Gross TotalAcreageGross	6044066000	acre
CY2013Q4	cnx	Total Acreage Net TotalAcreageNet	4799069000	acre
CY2012Q4	cnx	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	4482164000	USD
CY2013Q4	cnx	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	2103848000	USD
CY2012Q4	cnx	Total Other Assets TotalOtherAssets	1267533000	USD
CY2013Q4	cnx	Total Other Assets TotalOtherAssets	505813000	USD
CY2013	cnx	Treasury Rate Lock Net Of Tax TreasuryRateLockNetOfTax	0	USD
CY2012	cnx	Treasury Rate Lock Net Of Tax TreasuryRateLockNetOfTax	0	USD
CY2011	cnx	Treasury Rate Lock Net Of Tax TreasuryRateLockNetOfTax	-96000	USD
CY2013Q4	cnx	Unproved Acreage Gross UnprovedAcreageGross	5396659000	acre
CY2012Q4	cnx	Voluntary Severance Incentive Program VoluntarySeveranceIncentiveProgram	13304000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001070412
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	229162591	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	3294530080	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	CONSOL Energy Inc
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013Q4	invest	Derivative Nonmonetary Notional Amount DerivativeNonmonetaryNotionalAmount	279.3

Files In Submission

Name	View Source	Status
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$CNX
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2013 Form 10-K Financial Statement

#000107041214000005 Filed on February 07, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CNX CNX Resources Corp Stock $cnx

2013 Form 10-K Financial Statement

#000107041214000005 Filed on February 07, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CNX
CNX Resources Corp Stock $cnx