$ARCH
ARCH RESOURCES, INC. Stock $arch

$arch Overview Financials Valuation SEC Filings Company Website

2013 Q1 Form 10-Q Financial Statement

#000110465913038950 Filed on May 08, 2013

Income Statement

Concept	2013 Q1	2012 Q1	2011 Q4
Revenue	$737.4M	$960.2M	$1.229B
YoY Change	-23.2%	10.0%	47.09%
Cost Of Revenue	$649.7M	$850.9M	$945.8M
YoY Change	-23.64%	30.16%	51.98%
Gross Profit	-$18.56M	$37.72M	$154.4M
YoY Change	-149.21%	-71.1%	-27.52%
Gross Profit Margin	-2.52%	3.93%	12.56%
Selling, General & Admin	$33.21M	$30.86M	$26.30M
YoY Change	7.61%	1.52%	-8.36%
% of Gross Profit		81.83%	17.04%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$118.9M	$140.0M	$146.3M
YoY Change	-15.07%	67.62%	52.4%
% of Gross Profit		371.11%	94.76%
Operating Expenses	$788.8M	$985.6M	$155.9M
YoY Change	-19.96%	729.6%	20.29%
Operating Profit	-$51.43M	$27.80M	$139.7M
YoY Change	-285.02%	-72.81%	67.54%
Interest Expense	$95.07M	$74.77M	-$62.60M
YoY Change	27.15%	-333.66%	103.91%
% of Operating Profit		268.99%	-44.8%
Other Income/Expense, Net			$0.00
YoY Change
Pretax Income	-$143.7M	-$19.67M	$63.20M
YoY Change	630.4%	-128.76%	19.47%
Income Tax	-$59.35M	-$21.08M	-$6.800M
% Of Pretax Income			-10.76%
Net Earnings	-$70.05M	$1.206M	$71.22M
YoY Change	-5908.37%	-97.84%	47.75%
Net Earnings / Revenue	-9.5%	0.13%	5.8%
Basic Earnings Per Share	-$0.33	$0.01	$0.34
Diluted Earnings Per Share	-$0.33	$0.01	$0.33
COMMON SHARES
Basic Shares Outstanding	212.1M shares	211.7M shares
Diluted Shares Outstanding	212.1M shares	211.9M shares

Balance Sheet

Concept	2013 Q1	2012 Q1	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$978.5M	$118.0M	$138.1M
YoY Change	729.27%	71.01%	46.97%
Cash & Equivalents	$730.1M	$117.8M	$138.1M
Short-Term Investments	$248.4M
Other Short-Term Assets	$88.98M	$211.0M	$110.3M
YoY Change	-57.83%	17.88%	-27.91%
Inventory	$368.2M	$489.0M	$377.5M
Prepaid Expenses
Receivables	$263.3M	$295.0M	$380.6M
Other Receivables	$82.00M	$67.00M	$88.00M
Total Short-Term Assets	$1.884B	$1.179B	$1.183B
YoY Change	59.83%	47.56%	60.92%
LONG-TERM ASSETS
Property, Plant & Equipment	$7.273B	$7.893B	$7.949B
YoY Change	-7.86%	141.82%	140.23%
Goodwill	$265.4M		$596.1M
YoY Change			418.52%
Intangibles
YoY Change
Long-Term Investments	$246.8M	$231.0M	$225.6M
YoY Change	6.84%	13.24%	27.14%
Other Assets	$159.3M	$267.0M	$173.7M
YoY Change	-40.34%	-48.46%	-68.13%
Total Long-Term Assets	$763.2M	$8.986B	$1.082B
YoY Change	-91.51%	119.12%	-73.9%
TOTAL ASSETS
Total Short-Term Assets	$1.884B	$1.179B	$1.183B
Total Long-Term Assets	$763.2M	$8.986B	$1.082B
Total Assets	$9.920B	$10.17B	$10.21B
YoY Change	-2.41%	107.45%	109.27%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$229.3M	$294.0M	$383.8M
YoY Change	-22.02%	59.78%	93.83%
Accrued Expenses	$352.0M	$357.0M	$348.2M
YoY Change	-1.39%	56.58%	42.13%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$28.00M	$102.0M	$281.0M
YoY Change	-72.55%	45.71%	295.77%
Total Short-Term Liabilities	$610.3M	$763.0M	$1.021B
YoY Change	-20.02%	57.0%	93.68%
LONG-TERM LIABILITIES
Long-Term Debt	$5.082B	$3.968B	$5.086B
YoY Change	28.08%	157.83%	230.47%
Other Long-Term Liabilities	$227.4M	$867.0M	$255.4M
YoY Change	-73.78%	51.31%	-54.96%
Total Long-Term Liabilities	$5.310B	$4.835B	$5.341B
YoY Change	9.82%	128.93%	153.62%
TOTAL LIABILITIES
Total Short-Term Liabilities	$610.3M	$763.0M	$1.021B
Total Long-Term Liabilities	$5.310B	$4.835B	$5.341B
Total Liabilities	$7.138B	$6.593B	$6.624B
YoY Change	8.26%	152.8%	150.64%
SHAREHOLDERS EQUITY
Retained Earnings	-$180.5M		$622.4M
YoY Change
Common Stock	$3.032B		$3.017B
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$53.85M		$53.85M
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.782B	$3.578B	$3.578B
YoY Change
Total Liabilities & Shareholders Equity	$9.920B	$10.17B	$10.21B
YoY Change	-2.41%	107.45%	109.26%

Cashflow Statement

Concept	2013 Q1	2012 Q1	2011 Q4
OPERATING ACTIVITIES
Net Income	-$70.05M	$1.206M	$71.22M
YoY Change	-5908.37%	-97.84%	47.75%
Depreciation, Depletion And Amortization	$118.9M	$140.0M	$146.3M
YoY Change	-15.07%	67.62%	52.4%
Cash From Operating Activities	$43.29M	$54.99M	$170.8M
YoY Change	-21.27%	-36.13%	-28.95%
INVESTING ACTIVITIES
Capital Expenditures	$54.52M	$93.27M	-$328.9M
YoY Change	-41.54%	-256.49%	240.12%
Acquisitions
YoY Change
Other Investing Activities	-$17.70M	$17.80M	$6.000M
YoY Change	-199.44%	-152.51%	-119.61%
Cash From Investing Activities	-$81.34M	-$83.75M	-$322.9M
YoY Change	-2.88%	-10.43%	153.65%
FINANCING ACTIVITIES
Cash Dividend Paid	$6.367M	$23.33M
YoY Change	-72.71%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$16.46M	$8.381M	131.6M
YoY Change	-296.35%	-149.3%	-257.98%
NET CHANGE
Cash From Operating Activities	$43.29M	$54.99M	170.8M
Cash From Investing Activities	-$81.34M	-$83.75M	-322.9M
Cash From Financing Activities	-$16.46M	$8.381M	131.6M
Net Change In Cash	-$54.50M	-$20.38M	-20.50M
YoY Change	167.45%	-16.48%	-168.79%
FREE CASH FLOW
Cash From Operating Activities	$43.29M	$54.99M	$170.8M
Capital Expenditures	$54.52M	$93.27M	-$328.9M
Free Cash Flow	-$11.23M	-$38.28M	$499.7M
YoY Change	-70.66%	-126.27%	48.23%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	224418000	USD
CY2013Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	229269000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	247539000	USD
CY2013Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	263294000	USD
CY2013Q1	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	121159000	USD
CY2012Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	121029000	USD
CY2013Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	352040000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	318018000	USD
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-15016000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-16507000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3026823000	USD
CY2013Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3029536000	USD
CY2013Q1	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	54522000	USD
CY2012Q1	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	93271000	USD
CY2012Q4	us-gaap	Advances To Affiliate AdvancesToAffiliate	43828000	USD
CY2013Q1	us-gaap	Advances To Affiliate AdvancesToAffiliate	46216000	USD
CY2013Q1	us-gaap	Amortization Of Advance Royalty AmortizationOfAdvanceRoyalty	3537000	USD
CY2012Q1	us-gaap	Amortization Of Advance Royalty AmortizationOfAdvanceRoyalty	8586000	USD
CY2013Q1	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6167000	USD
CY2012Q1	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4288000	USD
CY2012Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	-14017000	USD
CY2013Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	-2810000	USD
CY2012Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3000000	shares
CY2013Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8600000	shares
CY2012Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	38920000	USD
CY2013Q1	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	38919000	USD
CY2012Q4	us-gaap	Assets Assets	10006777000	USD
CY2013Q1	us-gaap	Assets Assets	9920144000	USD
CY2012Q1	us-gaap	Assets Assets	10165118000	USD
CY2013Q1	us-gaap	Assets Current AssetsCurrent	1884382000	USD
CY2013Q1	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-358000	USD
CY2012Q1	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	2291000	USD
CY2012Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	755575000	USD
CY2013Q1	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	255633000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	240382000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1914104000	USD
CY2013Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	283748000	USD
CY2013Q1	us-gaap	Assets Noncurrent AssetsNoncurrent	763221000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	223300000	USD
CY2013Q1	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Cost Of Sales Net CashFlowHedgeGainLossReclassifiedToCostOfSalesNet	859000	USD
CY2013Q1	us-gaap	Coal Products And Services Revenue CoalProductsAndServicesRevenue	825502000	USD
CY2012Q1	us-gaap	Coal Products And Services Revenue CoalProductsAndServicesRevenue	1039651000	USD
CY2013Q1	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	245400000	USD
CY2013Q1	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	300000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	400000	USD
CY2013Q1	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	248414000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	234305000	USD
CY2013Q1	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	256458000	USD
CY2012Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	239652000	USD
CY2013Q1	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	-4723000	USD
CY2012Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	-3436000	USD
CY2013Q1	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	5548000	USD
CY2012Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	2706000	USD
CY2011Q4	us-gaap	Borrowed Funds BorrowedFunds	5118775000	USD
CY2013Q1	us-gaap	Borrowed Funds BorrowedFunds	5110511000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	784622000	USD
CY2013Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	730119000	USD
CY2012Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	117770000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138149000	USD
CY2013Q1	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-54503000	USD
CY2012Q1	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-20379000	USD
CY2012Q1	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Cost Of Sales Net CashFlowHedgeGainLossReclassifiedToCostOfSalesNet	201000	USD
CY2013Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03
CY2012Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.11
CY2013Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	260000000	shares
CY2013Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	260000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	213758600	shares
CY2013Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	213758600	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	2141000	USD
CY2013Q1	us-gaap	Common Stock Value CommonStockValue	2141000	USD
CY2012Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	8709000	USD
CY2013Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-68558000	USD
CY2012Q1	us-gaap	Cost Of Goods Sold Excluding Depreciation Depletion And Amortization CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization	850871000	USD
CY2013Q1	us-gaap	Cost Of Goods Sold Excluding Depreciation Depletion And Amortization CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization	710573000	USD
CY2012Q4	us-gaap	Debt Current DebtCurrent	32896000	USD
CY2013Q1	us-gaap	Debt Current DebtCurrent	28306000	USD
CY2011Q4	us-gaap	Debt Current DebtCurrent	32896000	USD
CY2013Q1	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	5000000000	USD
CY2012Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	5000000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	67360000	USD
CY2013Q1	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	67337000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	664182000	USD
CY2013Q1	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	610195000	USD
CY2012Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	67630000	USD
CY2013Q1	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	69342000	USD
CY2013Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	118868000	USD
CY2012Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	139966000	USD
CY2013Q1	us-gaap	Derivative Assets DerivativeAssets	27290000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	32315000	USD
CY2013Q1	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	26647000	USD
CY2012Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	30578000	USD
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	16200000	USD
CY2013Q1	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	24600000	USD
CY2013Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	72842000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	54863000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	24285000	USD
CY2013Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	46195000	USD
CY2013Q1	us-gaap	Derivative Liabilities DerivativeLiabilities	-643000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	-1737000	USD
CY2013Q1	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>
CY2013Q1	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent		USD
CY2012Q4	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent		USD
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.33
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.33
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	72405000	USD
CY2013Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	63375000	USD
CY2013Q1	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	182998000	USD
CY2012Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	180917000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	242215000	USD
CY2013Q1	us-gaap	Equity Method Investments EquityMethodInvestments	246807000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-124680000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-124680000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-19670000	USD
CY2013Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1208000	USD
CY2012Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-21079000	USD
CY2013Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-54631000	USD
CY2013Q1	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	54801000	USD
CY2012Q1	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	21742000	USD
CY2012Q1	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-1455000	USD
CY2013Q1	us-gaap	Increase Decrease In Restricted Cash And Investments IncreaseDecreaseInRestrictedCashAndInvestments	-1163000	USD
CY2012Q1	us-gaap	Increase Decrease In Restricted Cash And Investments IncreaseDecreaseInRestrictedCashAndInvestments	-1455000	USD
CY2013Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements		shares
CY2012Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	221000	shares
CY2013Q1	us-gaap	Interest Expense InterestExpense	95087000	USD
CY2013Q1	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	124900000	USD
CY2013Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-4472000	USD
CY2013Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	-25000	USD
CY2013Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	3217000	USD
CY2013Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	-1252000	USD
CY2013Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	5642000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8174000	USD
CY2013Q1	us-gaap	Goodwill Goodwill	265423000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	265423000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-19670000	USD
CY2012Q1	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	23002000	USD
CY2013Q1	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	458000	USD
CY2012Q1	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	111196000	USD
CY2013Q1	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2816000	USD
CY2013Q1	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	38249000	USD
CY2012Q1	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-66222000	USD
CY2013Q1	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-16307000	USD
CY2012Q1	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-4102000	USD
CY2012Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-88082000	USD
CY2013Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	12340000	USD
CY2013Q1	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-1163000	USD
CY2012Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	13600000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	12368000	USD
CY2013Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	15202000	USD
CY2013Q1	us-gaap	Investment Income Net InvestmentIncomeNet	2836000	USD
CY2012Q1	us-gaap	Investment Income Net InvestmentIncomeNet	1021000	USD
CY2013Q1	us-gaap	Investments In And Advances To Affiliates At Fair Value Period Increase Decrease InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease	3384000	USD
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CY2012Q1	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-73751000	USD
CY2013Q1	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-92251000	USD
CY2013Q1	us-gaap	Interest Payable Current InterestPayableCurrent	83855000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	42413000	USD
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CY2013Q1	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	14000000	USD
CY2013Q1	us-gaap	Liabilities Liabilities	7137790000	USD
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CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10006777000	USD
CY2013Q1	us-gaap	Liabilities Current LiabilitiesCurrent	610258000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	577069000	USD
CY2012Q4	us-gaap	Litigation Reserve LitigationReserve	32800000	USD
CY2013Q1	us-gaap	Litigation Reserve LitigationReserve	32700000	USD
CY2012Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	4400000	USD
CY2013Q1	us-gaap	Litigation Reserve Current LitigationReserveCurrent	4000000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5085879000	USD
CY2013Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5082205000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5085879000	USD
CY2012Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	409705000	USD
CY2013Q1	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	410975000	USD
CY2012Q3	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.005
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CY2013Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-16456000	USD
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CY2012Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	54990000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	1206000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	-70049000	USD
CY2013Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2012Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	203000	USD
CY2013Q1	us-gaap	Notes Payable NotesPayable		USD
CY2012Q4	us-gaap	Notes Payable NotesPayable		USD
CY2013Q1	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties		USD
CY2012Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties		USD
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CY2013Q1	us-gaap	Operating Expenses OperatingExpenses	857931000	USD
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CY2013Q1	us-gaap	Other Assets Current OtherAssetsCurrent	88977000	USD
CY2013Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	159300000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	160164000	USD
CY2013Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	1553000	USD
CY2012Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	394000	USD
CY2012Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-142000	USD
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CY2012Q1	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	724000	USD
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CY2013Q1	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	425000	USD
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CY2013Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	994000	USD
CY2012Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	252000	USD
CY2013Q1	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-754000	USD
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CY2013Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1251000	USD
CY2012Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	463000	USD
CY2013Q1	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	10400000	USD
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CY2013Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	227363000	USD
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CY2013Q1	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	46413000	USD
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CY2013Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	6367000	USD
CY2012Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	23327000	USD
CY2012Q1	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	100000	USD
CY2013Q1	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts		USD
CY2013Q1	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	26787000	USD
CY2012Q1	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments		USD
CY2012Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	93271000	USD
CY2013Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	54522000	USD
CY2012Q1	us-gaap	Payments To Acquire Royalty Interests In Mining Properties PaymentsToAcquireRoyaltyInterestsInMiningProperties	8262000	USD
CY2013Q1	us-gaap	Payments To Acquire Royalty Interests In Mining Properties PaymentsToAcquireRoyaltyInterestsInMiningProperties	9142000	USD
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CY2013Q1	us-gaap	Prepaid Royalties PrepaidRoyalties	13105000	USD
CY2012Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	11416000	USD
CY2013Q1	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	1000000	USD
CY2013Q1	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates		USD
CY2012Q1	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates		USD
CY2013Q1	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent		USD
CY2012Q1	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent		USD
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CY2013Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4125000	USD
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CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0065
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CY2013Q1	us-gaap	Share Based Compensation ShareBasedCompensation	2713000	USD
CY2013Q1	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.23
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CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	211908000	shares
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CY2013Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	212062000	shares
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CY2013Q1	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	12732000	USD
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CY2013Q1	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	81039000	USD
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CY2013Q1	aci	Net Proceeds From Commercial Paper And Net Borrowings On Lines Of Credit NetProceedsFromCommercialPaperAndNetBorrowingsOnLinesOfCredit		USD
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CY2013Q1	aci	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	752000	USD
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CY2012Q4	aci	Coal Supply Agreement Liability CoalSupplyAgreementLiability	14038000	USD
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CY2013Q1	aci	Commitments For Future Development Financing For Equity Method Investees CommitmentsForFutureDevelopmentFinancingForEquityMethodInvestees	72800000	USD
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CY2013Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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Files In Submission

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$ARCH
ARCH RESOURCES, INC. Stock $arch

2013 Q1 Form 10-Q Financial Statement

#000110465913038950 Filed on May 08, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARCH ARCH RESOURCES, INC. Stock $arch

2013 Q1 Form 10-Q Financial Statement

#000110465913038950 Filed on May 08, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARCH
ARCH RESOURCES, INC. Stock $arch