$ARCH
ARCH RESOURCES, INC. Stock $arch

$arch Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-Q Financial Statement

#000110465913083402 Filed on November 12, 2013

Income Statement

Concept	2013 Q4	2013 Q3	2012 Q3
Revenue	$719.4M	$791.3M	$975.2M
YoY Change	-17.02%	-18.86%	-18.65%
Cost Of Revenue	$668.5M	$788.0K	$542.0K
YoY Change	-9.76%	45.39%	-99.94%
Gross Profit	-$44.80M	$90.00K	$53.02M
YoY Change	-457.95%	-99.83%	-55.85%
Gross Profit Margin	-6.23%	0.01%	5.44%
Selling, General & Admin	$37.10M	$28.80M	$33.27M
YoY Change	6.0%	-13.43%	-0.03%
% of Gross Profit		32000.0%	62.75%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$98.80M	$111.2M	$126.8M
YoY Change	-21.46%	-12.33%	-9.11%
% of Gross Profit		123555.56%	239.24%
Operating Expenses	$152.9M	$1.026B	$855.9M
YoY Change	-39.97%	19.87%	-23.74%
Operating Profit	-$340.7M	-$234.8M	$119.2M
YoY Change	10.91%	-296.87%	56.37%
Interest Expense	-$67.30M	$95.62M	$75.71M
YoY Change	20.83%	26.3%	-2.55%
% of Operating Profit			63.49%
Other Income/Expense, Net		-$94.93M	-$74.25M
YoY Change		27.85%	4247.25%
Pretax Income	-$477.6M	-$329.7M	$44.99M
YoY Change	19.91%	-832.77%	-2051.04%
Income Tax	-$104.8M	-$121.9M	$20.32M
% Of Pretax Income			45.16%
Net Earnings	-$371.2M	-$128.4M	$45.75M
YoY Change	25.66%	-380.57%	414.63%
Net Earnings / Revenue	-51.6%	-16.22%	4.69%
Basic Earnings Per Share		-$0.61	$0.22
Diluted Earnings Per Share	-$1.75	-$0.61	$0.22
COMMON SHARES
Basic Shares Outstanding	212.3M shares	212.1M shares	212.1M shares
Diluted Shares Outstanding		212.1M shares	212.1M shares

Balance Sheet

Concept	2013 Q4	2013 Q3	2012 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.160B	$1.382B	$650.1M
YoY Change	13.8%	112.56%	308.88%
Cash & Equivalents	$911.1M	$1.133B	$550.8M
Short-Term Investments	$248.4M	$248.7M	$99.36M
Other Short-Term Assets	$56.75M	$46.97M	$67.50M
YoY Change	-38.63%	-30.41%	-61.65%
Inventory	$264.2M	$287.4M	$391.5M
Prepaid Expenses
Receivables	$198.0M	$190.7M	$277.6M
Other Receivables	$32.00M	$24.00M	$71.00M
Total Short-Term Assets	$1.782B	$2.030B	$1.580B
YoY Change	-6.9%	28.48%	42.57%
LONG-TERM ASSETS
Property, Plant & Equipment	$6.734B	$6.778B	$7.372B
YoY Change	-8.22%	-8.06%	-4.3%
Goodwill	$0.00	$265.4M	$480.3M
YoY Change	-100.0%	-44.74%
Intangibles
YoY Change
Long-Term Investments	$221.5M	$223.6M	$237.6M
YoY Change	-8.57%	-5.93%	5.62%
Other Assets	$164.8M	$149.6M	$180.3M
YoY Change	2.9%	-17.02%	-35.61%
Total Long-Term Assets	$473.8M	$723.6M	$984.1M
YoY Change	-37.29%	-26.47%	-88.88%
TOTAL ASSETS
Total Short-Term Assets	$1.782B	$2.030B	$1.580B
Total Long-Term Assets	$473.8M	$723.6M	$984.1M
Total Assets	$8.990B	$9.531B	$9.936B
YoY Change	-10.16%	-4.07%	-0.26%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$176.1M	$207.3M	$304.4M
YoY Change	-21.51%	-31.92%	3.91%
Accrued Expenses	$278.6M	$349.0M	$355.4M
YoY Change	-12.4%	-1.8%	-6.46%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$33.00M	$23.00M	$116.0M
YoY Change	0.0%	-80.17%	146.81%
Total Short-Term Liabilities	$488.2M	$579.8M	$779.1M
YoY Change	-15.4%	-25.58%	7.31%
LONG-TERM LIABILITIES
Long-Term Debt	$5.118B	$5.074B	$4.465B
YoY Change	0.63%	13.64%	16.26%
Other Long-Term Liabilities	$190.0M	$205.6M	$182.5M
YoY Change	-14.02%	12.66%	-78.86%
Total Long-Term Liabilities	$5.308B	$5.280B	$4.648B
YoY Change	0.02%	13.6%	-1.19%
TOTAL LIABILITIES
Total Short-Term Liabilities	$488.2M	$579.8M	$779.1M
Total Long-Term Liabilities	$5.308B	$5.280B	$4.648B
Total Liabilities	$6.737B	$6.950B	$6.771B
YoY Change	-5.81%	2.65%	7.1%
SHAREHOLDERS EQUITY
Retained Earnings	-$771.3M	-$393.8M	$197.7M
YoY Change	641.38%	-299.12%
Common Stock	$3.041B	$3.038B	$3.027B
YoY Change	0.39%	0.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$53.85M	$53.85M	$53.85M
YoY Change	0.0%	0.0%
Treasury Stock Shares	1.512M shares
Shareholders Equity	$2.253B	$2.582B	$3.165B
YoY Change
Total Liabilities & Shareholders Equity	$8.990B	$9.531B	$9.936B
YoY Change	-10.16%	-4.07%	0.82%

Cashflow Statement

Concept	2013 Q4	2013 Q3	2012 Q3
OPERATING ACTIVITIES
Net Income	-$371.2M	-$128.4M	$45.75M
YoY Change	25.66%	-380.57%	414.63%
Depreciation, Depletion And Amortization	$98.80M	$111.2M	$126.8M
YoY Change	-21.46%	-12.33%	-9.11%
Cash From Operating Activities	-$130.9M	$134.6M	$261.1M
YoY Change	454.66%	-48.45%	66.09%
INVESTING ACTIVITIES
Capital Expenditures	-$77.80M	$54.10M	$101.9M
YoY Change	-18.36%	-46.9%	-193.4%
Acquisitions
YoY Change
Other Investing Activities	-$3.100M	$421.0M	-$118.1M
YoY Change	-97.79%	-456.48%	-231.51%
Cash From Investing Activities	-$81.10M	$366.3M	-$220.6M
YoY Change	-65.59%	-266.05%	1048.96%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$628.7M
YoY Change
Cash From Financing Activities	-10.10M	-11.90M	-2.200M
YoY Change	-102.05%	440.91%	-96.43%
NET CHANGE
Cash From Operating Activities	-130.9M	134.6M	261.1M
Cash From Investing Activities	-81.10M	366.3M	-220.6M
Cash From Financing Activities	-10.10M	-11.90M	-2.200M
Net Change In Cash	-222.1M	489.0M	38.30M
YoY Change	-195.0%	1176.76%	-49.8%
FREE CASH FLOW
Cash From Operating Activities	-$130.9M	$134.6M	$261.1M
Capital Expenditures	-$77.80M	$54.10M	$101.9M
Free Cash Flow	-$53.10M	$80.50M	$159.2M
YoY Change	-174.06%	-49.44%	-40.22%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2013Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	207273000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	224418000	USD
CY2013Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	190723000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	247539000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments		USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3679000	USD
CY2013Q3	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	113872000	USD
CY2012Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	121029000	USD
CY2013Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	349033000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	318018000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-16507000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-8606000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3026823000	USD
CY2013Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3035732000	USD
	us-gaap	Amortization Of Advance Royalty AmortizationOfAdvanceRoyalty	11973000	USD
	us-gaap	Amortization Of Advance Royalty AmortizationOfAdvanceRoyalty	19802000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	14345000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	18525000	USD
CY2012Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	-4093000	USD
CY2013Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	-2568000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	-7587000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	-22561000	USD
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5000000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7900000	shares
CY2013Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7000000	shares
CY2012Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5800000	shares
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.09
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.17
CY2013Q3	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	38895000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	38920000	USD
CY2012Q4	us-gaap	Assets Assets	10006777000	USD
CY2013Q3	us-gaap	Assets Assets	9531455000	USD
CY2012Q3	us-gaap	Assets Assets	9935854000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1914104000	USD
CY2013Q3	us-gaap	Assets Current AssetsCurrent	2029639000	USD
CY2013Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	288475000	USD
CY2013Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	723591000	USD
CY2012Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	755575000	USD
CY2013Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	261414000	USD
CY2012Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	239652000	USD
CY2013Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	254559000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	240382000	USD
CY2013Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	167500000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	223300000	USD
CY2013Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	51600000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	400000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	234305000	USD
CY2013Q3	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	248724000	USD
	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	10312000	USD
CY2012	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	2706000	USD
	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	3457000	USD
CY2012	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	3436000	USD
CY2013Q3	us-gaap	Borrowed Funds BorrowedFunds	5097434000	USD
CY2012Q4	us-gaap	Borrowed Funds BorrowedFunds	5118775000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	784622000	USD
CY2013Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1133128000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138149000	USD
CY2012Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	550756000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	348506000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	412607000	USD
CY2012Q3	us-gaap	Coal Products And Services Revenue CoalProductsAndServicesRevenue	975170000	USD
	us-gaap	Coal Products And Services Revenue CoalProductsAndServicesRevenue	2901092000	USD
CY2013Q3	us-gaap	Coal Products And Services Revenue CoalProductsAndServicesRevenue	791269000	USD
	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	3568000	USD
	us-gaap	Coal Products And Services Revenue CoalProductsAndServicesRevenue	2294971000	USD
CY2012Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2013Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2013Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	260000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	260000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	213759000	shares
CY2013Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	213792000	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	2141000	USD
CY2013Q3	us-gaap	Common Stock Value CommonStockValue	2141000	USD
CY2012Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	44299000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-385523000	USD
CY2013Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-125996000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-262717000	USD
CY2013Q3	us-gaap	Cost Of Goods Sold CostOfGoodsSold	788000	USD
CY2012Q3	us-gaap	Cost Of Goods Sold CostOfGoodsSold	542000	USD
	us-gaap	Cost Of Goods Sold CostOfGoodsSold	1552000	USD
	us-gaap	Cost Of Goods Sold CostOfGoodsSold	2189000	USD
	us-gaap	Cost Of Goods Sold Excluding Depreciation Depletion And Amortization CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization	2414306000	USD
	us-gaap	Cost Of Goods Sold Excluding Depreciation Depletion And Amortization CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization	1994653000	USD
CY2012Q3	us-gaap	Cost Of Goods Sold Excluding Depreciation Depletion And Amortization CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization	808489000	USD
CY2013Q3	us-gaap	Cost Of Goods Sold Excluding Depreciation Depletion And Amortization CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization	688712000	USD
CY2013Q3	us-gaap	Debt Current DebtCurrent	23050000	USD
CY2012Q4	us-gaap	Debt Current DebtCurrent	32896000	USD
	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	4749000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised		USD
CY2013Q3	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	4500000000	USD
CY2012Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	5000000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	67360000	USD
CY2013Q3	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	67381000	USD
CY2013Q3	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	484130000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	664182000	USD
CY2013Q3	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	68539000	USD
CY2012Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	67630000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	399672000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	348863000	USD
CY2013Q3	us-gaap	Derivative Assets DerivativeAssets	27061000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	32315000	USD
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	22975000	USD
CY2013Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	22836000	USD
CY2012Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	30578000	USD
CY2013Q3	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	26640000	USD
CY2013Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	-4900000	USD
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	16200000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	54863000	USD
CY2013Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	82930000	USD
CY2013Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	56290000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	24285000	USD
CY2013Q3	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	2190000	USD
CY2012Q3	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	81000	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	1797000	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	3861000	USD
CY2013Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	421000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1737000	USD
CY2012Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1737000	USD
CY2013Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	421000	USD
	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting Policies</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:6px;padding-top:6px;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">There is no new accounting guidance that is expected to have a significant impact on the Company’s financial statements.</font></div></div>
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	46029000	USD
CY2013Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	39704000	USD
CY2012Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-4360000	USD
	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax		USD
	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	115679000	USD
CY2013Q3	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	115679000	USD
CY2012Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax	16718000	USD
CY2013Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax	3429000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax	50911000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax	32166000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	7293000	USD
	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	289715000	USD
CY2012Q3	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	112448000	USD
CY2013Q3	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	45763000	USD
	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	219002000	USD
CY2012Q4	us-gaap	Due From Affiliate Noncurrent DueFromAffiliateNoncurrent		USD
CY2013Q3	us-gaap	Due From Affiliate Noncurrent DueFromAffiliateNoncurrent		USD
CY2012Q4	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent		USD
CY2013Q3	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent		USD
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.61
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.28
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.83
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.28
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.61
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.83
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2013Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	68245000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	72405000	USD
CY2012Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	180917000	USD
CY2013Q3	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	134481000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	7317000	USD
CY2013Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues		USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	-25000	USD
	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	28947000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	242215000	USD
CY2013Q3	us-gaap	Equity Method Investments EquityMethodInvestments	223554000	USD
CY2013Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-570000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-9882000	USD
CY2013Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	1464000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	-1490000	USD
CY2013Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	-238000	USD
CY2013Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	3438000	USD
CY2013Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4094000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8174000	USD
CY2012Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt		USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt		USD
CY2013Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt		USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-19042000	USD
CY2013Q3	us-gaap	Goodwill Goodwill	265423000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	265423000	USD
CY2012Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss		USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	115791000	USD
CY2013Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss		USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss		USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-694538000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	44991000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-329680000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-603168000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-603168000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-694538000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-329680000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	44991000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-431882000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-207767000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	24673000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-372434000	USD
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-2.04
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.98
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.12
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-1.76
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.98
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.12
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-1.76
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-2.04
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	43618000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	21078000	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	79404000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	101816000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.48
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.10
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.37
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.21
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.10
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.21
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.48
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.37
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5441000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-230734000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-262656000	USD
CY2013Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-121913000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20318000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-184418000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-255530000	USD
	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	29523000	USD
	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	1568000	USD
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	787000	USD
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	22048000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	16635000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-21387000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	19287000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-51968000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-39737000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	83453000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-102252000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-72436000	USD
	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-3453000	USD
	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-6872000	USD
	us-gaap	Interest Expense InterestExpense	229210000	USD
	us-gaap	Interest Expense InterestExpense	285454000	USD
CY2012Q3	us-gaap	Interest Expense InterestExpense	75710000	USD
CY2013Q3	us-gaap	Interest Expense InterestExpense	95624000	USD
CY2013Q3	us-gaap	Interest Payable Current InterestPayableCurrent	80454000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	42413000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	365424000	USD
CY2013Q3	us-gaap	Inventory Net InventoryNet	287409000	USD
CY2012Q4	us-gaap	Inventory Parts And Components Net Of Reserves InventoryPartsAndComponentsNetOfReserves	172139000	USD
CY2013Q3	us-gaap	Inventory Parts And Components Net Of Reserves InventoryPartsAndComponentsNetOfReserves	143763000	USD
CY2013Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	8800000	USD
CY2012Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	13600000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	12368000	USD
CY2013Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	9165000	USD
	us-gaap	Investments In And Advances To Affiliates At Fair Value Period Increase Decrease InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease	4845000	USD
CY2013Q3	us-gaap	Liabilities Liabilities	6949801000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	7152210000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10006777000	USD
CY2013Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9531455000	USD
CY2013Q3	us-gaap	Liabilities Current LiabilitiesCurrent	579777000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	577069000	USD
CY2013Q3	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	204000000	USD
CY2012Q4	us-gaap	Litigation Reserve LitigationReserve	32800000	USD
CY2013Q3	us-gaap	Litigation Reserve LitigationReserve	21200000	USD
CY2013Q3	us-gaap	Litigation Reserve Current LitigationReserveCurrent	7700000	USD
CY2012Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	4400000	USD
CY2013Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5074384000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5085879000	USD
CY2012Q3	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	-79532000	USD
CY2013Q3	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision		USD
	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision		USD
	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	-79532000	USD
CY2012Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	409705000	USD
CY2013Q3	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	411121000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-44564000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	469689000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	206478000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-413477000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	356395000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	186592000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	45751000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	-128363000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-270618000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-388532000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest		USD
CY2013Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest		USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	268000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-225642000	USD
CY2013Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-94927000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-280705000	USD
CY2012Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-74251000	USD
CY2012Q4	us-gaap	Notes Payable NotesPayable		USD
CY2013Q3	us-gaap	Notes Payable NotesPayable		USD
CY2012Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties		USD
CY2013Q3	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties		USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3
CY2013Q3	us-gaap	Operating Expenses OperatingExpenses	1026022000	USD
	us-gaap	Operating Expenses OperatingExpenses	2617434000	USD
	us-gaap	Operating Expenses OperatingExpenses	3350946000	USD
CY2012Q3	us-gaap	Operating Expenses OperatingExpenses	855928000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-322463000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-449854000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-234753000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	119242000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	18842000	USD
CY2013Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	20891000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	92469000	USD
CY2013Q3	us-gaap	Other Assets Current OtherAssetsCurrent	46972000	USD
CY2013Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	149613000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	160164000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-377000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	1136000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	7648000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-869000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4853000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	688000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-555000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-240000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-314000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2795000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-137000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	448000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	7788000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	10586000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-224000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-439000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	1346000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-142000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	860000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-282000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	6776000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	3810000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	486000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-157000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-82000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2741000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7901000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2367000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1452000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	4981000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-989000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-5957000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	1277000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3795000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	3190000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-615000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	819000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	458000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-374000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1791000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-2162000	USD
CY2013Q3	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	15000000	USD
CY2012Q4	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	13100000	USD
CY2013Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	205557000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	221030000	USD
CY2012Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	40350000	USD
CY2013Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	25912000	USD
CY2012Q3	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1459000	USD
CY2013Q3	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	697000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	44606000	USD
CY2012Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	24840000	USD
CY2013Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	5395000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	16476000	USD
CY2013Q3	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	44279000	USD
CY2012Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	45086000	USD
CY2012Q4	us-gaap	Other Receivables OtherReceivables	84541000	USD
CY2013Q3	us-gaap	Other Receivables OtherReceivables	24116000	USD
	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	15600000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	36072000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	19105000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	34686000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts		USD
	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates		USD
	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	17500000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	99628000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	85418000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	303968000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	223168000	USD
CY2013Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	54104000	USD
CY2012Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	101895000	USD
	us-gaap	Payments To Acquire Royalty Interests In Mining Properties PaymentsToAcquireRoyaltyInterestsInMiningProperties	9192000	USD
	us-gaap	Payments To Acquire Royalty Interests In Mining Properties PaymentsToAcquireRoyaltyInterestsInMiningProperties	10901000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	194220000	USD
CY2013Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	145539000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	755575000	USD
CY2013Q3	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	723591000	USD
CY2012Q4	us-gaap	Prepaid Mineral Royalties Noncurrent PrepaidMineralRoyaltiesNoncurrent	87773000	USD
CY2013Q3	us-gaap	Prepaid Mineral Royalties Noncurrent PrepaidMineralRoyaltiesNoncurrent	85001000	USD
CY2013Q3	us-gaap	Prepaid Royalties PrepaidRoyalties	8350000	USD
CY2012Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	11416000	USD
CY2013Q3	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	2900000	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates		USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates		USD
	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent		USD
	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent		USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	422663000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses		USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1386000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt		USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3500000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-12375000	USD
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-13078000	USD
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-12700000	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-452806000	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-384000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	22624000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8799000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments		USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	67255000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5131000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	-128363000	USD
	us-gaap	Profit Loss ProfitLoss	-388264000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	45751000	USD
	us-gaap	Profit Loss ProfitLoss	-270618000	USD
CY2013Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	6778225000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	7337098000	USD
CY2013Q3	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	16000000	USD
CY2012Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	332080000	USD
CY2013Q3	us-gaap	Receivables Net Current ReceivablesNetCurrent	214839000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-113000	USD
CY2013Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents		USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	3453000	USD
	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	220879000	USD
	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	501942000	USD
	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	523439000	USD
CY2012Q3	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	-2144000	USD
CY2013Q3	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	200397000	USD
	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	220879000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-104042000	USD
CY2013Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-393765000	USD
	us-gaap	Sale Leaseback Transaction Gross Proceeds SaleLeasebackTransactionGrossProceeds		USD
	us-gaap	Sale Leaseback Transaction Gross Proceeds SaleLeasebackTransactionGrossProceeds	34919000	USD
CY2013Q3	us-gaap	Treasury Stock Value TreasuryStockValue	53848000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	53848000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	212085000	shares
CY2012Q3	us-gaap	Trading Activity Gains And Losses Net TradingActivityGainsAndLossesNet	5500000	USD
CY2013Q3	us-gaap	Trading Activity Gains And Losses Net TradingActivityGainsAndLossesNet	900000	USD
	us-gaap	Trading Activity Gains And Losses Net TradingActivityGainsAndLossesNet	6200000	USD
CY2012Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	33266000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	96311000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	99305000	USD
CY2013Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	28800000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	9435000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	8909000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0230
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.6674
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0065
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	2000000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.37
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.23
CY2013Q3	us-gaap	Stockholders Equity StockholdersEquity	2581654000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	2854567000	USD
	us-gaap	Trading Activity Gains And Losses Net TradingActivityGainsAndLossesNet	3000000	USD
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	212076000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	211931000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	212111000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	211931000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	212085000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	212053000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	212111000	shares
CY2012Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	10371000	USD
CY2013Q3	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	12215000	USD
CY2013Q3	aci	Coal Supply Agreement Liability CoalSupplyAgreementLiability	14461000	USD
	aci	Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet	-29827000	USD
CY2012Q3	aci	Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet	5840000	USD
CY2012Q4	aci	Investment In Subsidiaries InvestmentInSubsidiaries		USD
CY2012Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	81629000	USD
CY2013Q3	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	82014000	USD
CY2012Q4	aci	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	318018000	USD
CY2013Q3	aci	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	349033000	USD
CY2012Q4	aci	Accrued Expenses Derivatives And Other Liabilities Current AccruedExpensesDerivativesAndOtherLiabilitiesCurrent	319755000	USD
CY2013Q3	aci	Accrued Expenses Derivatives And Other Liabilities Current AccruedExpensesDerivativesAndOtherLiabilitiesCurrent	349454000	USD
	aci	Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet	2053000	USD
CY2013Q3	aci	Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet Changeinfairvalueofcoalderivativesandcoaltradingactivitiesnet	9753000	USD
CY2012Q4	aci	Coal Supply Agreement Liability CoalSupplyAgreementLiability	14038000	USD
CY2011Q3	aci	Damages And Interest Awarded DamagesAndInterestAwarded	104100000	USD
CY2013Q3	aci	Depreciationdepletionandamortizationproductionandnonproduction Depreciationdepletionandamortizationproductionandnonproduction	106323000	USD
CY2012Q3	aci	Depreciationdepletionandamortizationproductionandnonproduction Depreciationdepletionandamortizationproductionandnonproduction	118942000	USD
	aci	Depreciationdepletionandamortizationproductionandnonproduction Depreciationdepletionandamortizationproductionandnonproduction	374631000	USD
	aci	Depreciationdepletionandamortizationproductionandnonproduction Depreciationdepletionandamortizationproductionandnonproduction	327601000	USD
CY2013Q3	aci	Effect Of Counterparty Netting In Derivative Assets EffectOfCounterpartyNettingInDerivativeAssets	55869000	USD
CY2012Q4	aci	Effect Of Counterparty Netting In Derivative Assets EffectOfCounterpartyNettingInDerivativeAssets	22548000	USD
CY2013Q3	aci	Effect Of Counterparty Netting In Derivative Liabilities EffectOfCounterpartyNettingInDerivativeLiabilities	55869000	USD
CY2012Q4	aci	Effect Of Counterparty Netting In Derivative Liabilities EffectOfCounterpartyNettingInDerivativeLiabilities	22548000	USD
	aci	Income From Investment In Subsidiaries IncomeFromInvestmentInSubsidiaries		USD
	aci	Income From Investment In Subsidiaries IncomeFromInvestmentInSubsidiaries		USD
CY2012Q3	aci	Income From Investment In Subsidiaries IncomeFromInvestmentInSubsidiaries		USD
CY2013Q3	aci	Income From Investment In Subsidiaries IncomeFromInvestmentInSubsidiaries		USD
CY2013Q3	aci	Investment In Subsidiaries InvestmentInSubsidiaries		USD
CY2013Q3	aci	Letters Of Credit Posted In Companys Favor LettersOfCreditPostedInCompanysFavor	16700000	USD
	aci	Net Proceeds From Commercial Paper And Net Borrowings On Lines Of Credit NetProceedsFromCommercialPaperAndNetBorrowingsOnLinesOfCredit	-381300000	USD
	aci	Net Proceeds From Commercial Paper And Net Borrowings On Lines Of Credit NetProceedsFromCommercialPaperAndNetBorrowingsOnLinesOfCredit		USD
	aci	Number Of Mining Complexes Temporarily Idled NumberOfMiningComplexesTemporarilyIdled	1
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	ARCH COAL INC
CY2007Q3	aci	Purchase Replacement Coal PurchaseReplacementCoal	100000000	USD
	aci	Purchases Of Investments Advances To Affiliates PurchasesOfInvestmentsAdvancesToAffiliates	11124000	USD
	aci	Purchases Of Investments Advances To Affiliates PurchasesOfInvestmentsAdvancesToAffiliates	12685000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
	dei	Document Period End Date DocumentPeriodEndDate	2013-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001037676
CY2013Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	212279999	shares

Files In Submission

Name	View Source	Status
0001104659-13-083402-index-headers.html	Edgar Link	pending
0001104659-13-083402-index.html	Edgar Link	pending
0001104659-13-083402.txt	Edgar Link	pending
0001104659-13-083402-xbrl.zip	Edgar Link	pending
a13-19728_110q.htm	Edgar Link	pending
a13-19728_1ex12d1.htm	Edgar Link	pending
a13-19728_1ex31d1.htm	Edgar Link	pending
a13-19728_1ex31d2.htm	Edgar Link	pending
a13-19728_1ex32d1.htm	Edgar Link	pending
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a13-19728_1ex95.htm	Edgar Link	pending
aci-20130930.xml	Edgar Link	completed
aci-20130930.xsd	Edgar Link	pending
aci-20130930_cal.xml	Edgar Link	unprocessable
aci-20130930_def.xml	Edgar Link	unprocessable
aci-20130930_lab.xml	Edgar Link	unprocessable
aci-20130930_pre.xml	Edgar Link	unprocessable
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Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
g197281bai001.jpg	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$ARCH
ARCH RESOURCES, INC. Stock $arch

2013 Q4 Form 10-Q Financial Statement

#000110465913083402 Filed on November 12, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARCH ARCH RESOURCES, INC. Stock $arch

2013 Q4 Form 10-Q Financial Statement

#000110465913083402 Filed on November 12, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARCH
ARCH RESOURCES, INC. Stock $arch