10-K Filing

ALPHA METALLURGICAL RESOURCES, INC. CIK: 1704715 FY 2021

Filing Information

Form Type	10-K
Accession Number	`0001704715-22-000012`
Period End Date	20211231
Filing Date	20220307
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	amr-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 100 Income Statement 66 Cash Flow Statement 109 Stockholders Equity 15 Comprehensive Income 18

Balance Sheet 100 line items

Line Item	Tag	Value	Unit	Period
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivable`	$393.00K	USD	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivable`	$293.00K	USD	Point-in-time
Less accumulated depreciation, depletion and amortization	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization`	$443.86M	USD	Point-in-time
Less accumulated depreciation, depletion and amortization	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization`	$382.42M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$139.23M	USD	Point-in-time
Owned and leased mineral rights, accumulated depletion and amortization	`MineralPropertiesAccumulatedDepletion`	$35.14M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$81.21M	USD	Point-in-time
Owned and leased mineral rights, accumulated depletion and amortization	`MineralPropertiesAccumulatedDepletion`	$52.44M	USD	Point-in-time
Trade accounts receivable, net of allowance for doubtful accounts of $393 and $293 as of December 31, 2021 and 2020, respectively	`AccountsReceivableNetCurrent`	$145.67M	USD	Point-in-time
Other acquired intangibles, accumulated amortization	`FiniteLivedIntangibleAssetsAccumulatedAmortization`	$25.70M	USD	Point-in-time
Trade accounts receivable, net of allowance for doubtful accounts of $393 and $293 as of December 31, 2021 and 2020, respectively	`AccountsReceivableNetCurrent`	$489.24M	USD	Point-in-time
Other acquired intangibles, accumulated amortization	`FiniteLivedIntangibleAssetsAccumulatedAmortization`	$34.22M	USD	Point-in-time
Inventories, net	`InventoryNet`	$108.05M	USD	Point-in-time
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Inventories, net	`InventoryNet`	$129.38M	USD	Point-in-time
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$47.69M	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	5.00M	shares	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	5.00M	shares	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$106.25M	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Current assets - discontinued operations	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$462.00K	USD	Point-in-time
Current assets - discontinued operations	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$10.94M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$747.99M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Total current assets	`AssetsCurrent`	$510.13M	USD	Point-in-time
Property, plant, and equipment, net of accumulated depreciation and amortization of $443,856 and $382,423 as of December 31, 2021 and 2020, respectively	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$363.62M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	50.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	50.00M	shares	Point-in-time
Property, plant, and equipment, net of accumulated depreciation and amortization of $443,856 and $382,423 as of December 31, 2021 and 2020, respectively	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$362.22M	USD	Point-in-time
Owned and leased mineral rights, net of accumulated depletion and amortization of $52,444 and $35,143 as of December 31, 2021 and 2020, respectively	`MineralRights`	$463.25M	USD	Point-in-time
Owned and leased mineral rights, net of accumulated depletion and amortization of $52,444 and $35,143 as of December 31, 2021 and 2020, respectively	`MineralRights`	$444.30M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	20.60M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	20.80M	shares	Point-in-time
Other acquired intangibles, net of accumulated amortization of $34,221 and $25,700 as of December 31, 2021 and 2020, respectively	`IntangibleAssetsNetExcludingGoodwill`	$88.20M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	18.40M	shares	Point-in-time
Other acquired intangibles, net of accumulated amortization of $34,221 and $25,700 as of December 31, 2021 and 2020, respectively	`IntangibleAssetsNetExcludingGoodwill`	$74.20M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	18.30M	shares	Point-in-time
Treasury stock, shares at cost (in shares)	`TreasuryStockCommonShares`	2.30M	shares	Point-in-time
Long-term restricted cash	`RestrictedCashNoncurrent`	$89.43M	USD	Point-in-time
Treasury stock, shares at cost (in shares)	`TreasuryStockCommonShares`	2.40M	shares	Point-in-time
Long-term restricted cash	`RestrictedCashNoncurrent`	$96.03M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$131.06M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$149.38M	USD	Point-in-time
Non-current assets - discontinued operations	`DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent`	$8.53M	USD	Point-in-time
Non-current assets - discontinued operations	`DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent`	$9.47M	USD	Point-in-time
Total assets	`Assets`	$1.68B	USD	Point-in-time
Total assets	`Assets`	$1.86B	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$2.99M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$28.83M	USD	Point-in-time
Trade accounts payable	`AccountsPayableCurrent`	$58.41M	USD	Point-in-time
Trade accounts payable	`AccountsPayableCurrent`	$90.09M	USD	Point-in-time
Acquisition-related obligations - current	`AcquisitionRelatedObligationsCarryingAmountCurrent`	$22.41M	USD	Point-in-time
Acquisition-related obligations - current	`AcquisitionRelatedObligationsCarryingAmountCurrent`	$19.10M	USD	Point-in-time
Accrued expenses and other current liabilities	`AccruedLiabilitiesandOtherLiabilitiesCurrent`	$140.41M	USD	Point-in-time
Accrued expenses and other current liabilities	`AccruedLiabilitiesandOtherLiabilitiesCurrent`	$174.61M	USD	Point-in-time
Current liabilities - discontinued operations	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$12.31M	USD	Point-in-time
Current liabilities - discontinued operations	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$5.84M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$259.05M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$295.93M	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$553.70M	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$445.56M	USD	Point-in-time
Acquisition-related obligations - long-term	`AcquisitionRelatedObligationsCarryingAmountNoncurrent`	$20.77M	USD	Point-in-time
Acquisition-related obligations - long-term	`AcquisitionRelatedObligationsCarryingAmountNoncurrent`	$19.00M	USD	Point-in-time
Workers compensation and black lung obligations	`LiabilityDefinedBenefitPlanPostretirementBlackLungHealthCoverageandWorkersCompensationNoncurrent`	$230.08M	USD	Point-in-time
Workers compensation and black lung obligations	`LiabilityDefinedBenefitPlanPostretirementBlackLungHealthCoverageandWorkersCompensationNoncurrent`	$208.19M	USD	Point-in-time
Pension obligations	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$218.67M	USD	Point-in-time
Pension obligations	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$159.93M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$140.07M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$132.01M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$480.00K	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$317.00K	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$26.18M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$28.07M	USD	Point-in-time
Non-current liabilities - discontinued operations	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent`	$23.68M	USD	Point-in-time
Non-current liabilities - discontinued operations	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent`	$29.09M	USD	Point-in-time
Total liabilities	`Liabilities`	$1.48B	USD	Point-in-time
Total liabilities	`Liabilities`	$1.31B	USD	Point-in-time
Commitments and Contingencies (Note 22)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 22)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock - par value $0.01, 5.0 million shares authorized, none issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock - par value $0.01, 5.0 million shares authorized, none issued	`PreferredStockValue`	-	USD	Point-in-time
Common stock - par value $0.01, 50.0 million shares authorized, 20.8 million issued and 18.4 million outstanding at December 31, 2021 and 20.6 million issued and 18.3 million outstanding at December 31, 2020	`CommonStockValue`	$206.00K	USD	Point-in-time
Common stock - par value $0.01, 50.0 million shares authorized, 20.8 million issued and 18.4 million outstanding at December 31, 2021 and 20.6 million issued and 18.3 million outstanding at December 31, 2020	`CommonStockValue`	$208.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$779.42M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$784.74M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-111.98M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-58.50M	USD	Point-in-time
Treasury stock, at cost: 2.4 million shares at December 31, 2021 and 2.3 million shares at December 31, 2020	`TreasuryStockValue`	$107.80M	USD	Point-in-time
Treasury stock, at cost: 2.4 million shares at December 31, 2021 and 2.3 million shares at December 31, 2020	`TreasuryStockValue`	$107.01M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-360.53M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-71.74M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$696.12M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$546.91M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$200.10M	USD	Point-in-time
Total liabilities and stockholders equity	`LiabilitiesAndStockholdersEquity`	$1.68B	USD	Point-in-time
Total liabilities and stockholders equity	`LiabilitiesAndStockholdersEquity`	$1.86B	USD	Point-in-time

Income Statement 66 line items

Line Item	Tag	Value	Unit	Period
Coal revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.25B	USD	Annual
Coal revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.41B	USD	Annual
Other revenues	`OtherIncome`	$5.99M	USD	Annual
Other revenues	`OtherIncome`	$3.06M	USD	Annual
Total revenues	`Revenues`	$2.26B	USD	Annual
Total revenues	`Revenues`	$1.42B	USD	Annual
Cost of coal sales (exclusive of items shown separately below)	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.68B	USD	Annual
Cost of coal sales (exclusive of items shown separately below)	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.28B	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortizationExcludingAcquiredIntangibles`	$110.05M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortizationExcludingAcquiredIntangibles`	$139.88M	USD	Annual
Accretion on asset retirement obligations	`AssetRetirementObligationAccretionExpense`	$26.50M	USD	Annual
Accretion on asset retirement obligations	`AssetRetirementObligationAccretionExpense`	$26.52M	USD	Annual
Amortization of acquired intangibles, net	`AmortizationOfIntangibleAssets`	$9.21M	USD	Annual
Amortization of acquired intangibles, net	`AmortizationOfIntangibleAssets`	$13.24M	USD	Annual
Asset impairment and restructuring	`RestructuringCostsAndAssetImpairmentCharges`	$-561.00K	USD	Annual
Asset impairment and restructuring	`RestructuringCostsAndAssetImpairmentCharges`	$83.88M	USD	Annual
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	`SellingGeneralAndAdministrativeExpense`	$63.90M	USD	Annual
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	`SellingGeneralAndAdministrativeExpense`	$57.36M	USD	Annual
Mark-to-market adjustment for acquisition-related obligations	`AcquisitionRelatedObligationsChangesinFairValueGainLoss`	$8.75M	USD	Annual
Mark-to-market adjustment for acquisition-related obligations	`AcquisitionRelatedObligationsChangesinFairValueGainLoss`	$-19.52M	USD	Annual
Other income	`OtherOperatingIncomeExpenseNet`	$10.97M	USD	Annual
Other income	`OtherOperatingIncomeExpenseNet`	$2.22M	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$1.59B	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$1.90B	USD	Annual
Income (loss) from operations	`OperatingIncomeLoss`	$357.14M	USD	Annual
Income (loss) from operations	`OperatingIncomeLoss`	$-170.69M	USD	Annual
Interest expense	`InterestExpense`	$74.53M	USD	Annual
Interest expense	`InterestExpense`	$69.65M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$334.00K	USD	Annual
Interest income	`InvestmentIncomeInterest`	$7.03M	USD	Annual
Equity loss in affiliates	`IncomeLossFromEquityMethodInvestments`	$-4.15M	USD	Annual
Equity loss in affiliates	`IncomeLossFromEquityMethodInvestments`	$-3.47M	USD	Annual
Miscellaneous income (loss), net	`OtherNonoperatingIncomeExpense`	$6.87M	USD	Annual
Miscellaneous income (loss), net	`OtherNonoperatingIncomeExpense`	$-1.97M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-72.95M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-66.60M	USD	Annual
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$290.54M	USD	Annual
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-243.63M	USD	Annual
Income tax (expense) benefit	`IncomeTaxExpenseBenefit`	$3.61M	USD	Annual
Income tax (expense) benefit	`IncomeTaxExpenseBenefit`	$-2.16M	USD	Annual
Net income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-241.47M	USD	Annual
Net income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$286.93M	USD	Annual
Income (loss) from discontinued operations before income taxes	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	$-205.43M	USD	Annual
Income (loss) from discontinued operations before income taxes	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	$1.66M	USD	Annual
Income tax benefit from discontinued operations	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	-	USD	Annual
Income tax benefit from discontinued operations	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	$-201.00K	USD	Annual
Income (loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$1.86M	USD	Annual
Income (loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-205.43M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$288.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-446.90M	USD	Annual
Income (loss) from continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-13.20	USD	Annual
Income (loss) from continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$15.56	USD	Annual
Income (loss) from discontinued operations (in dollars per share)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare`	$0.10	USD	Annual
Income (loss) from discontinued operations (in dollars per share)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare`	$-11.22	USD	Annual
Net income (loss) (in dollars per share)	`EarningsPerShareBasic`	$15.66	USD	Annual
Net income (loss) (in dollars per share)	`EarningsPerShareBasic`	$-24.42	USD	Annual
Income (loss) from continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-13.20	USD	Annual
Income (loss) from continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$15.20	USD	Annual
Income (loss) from discontinuing operations (in dollars per share)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$-11.22	USD	Annual
Income (loss) from discontinuing operations (in dollars per share)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$0.10	USD	Annual
Net income (loss) (in dollars per share)	`EarningsPerShareDiluted`	$15.30	USD	Annual
Net income (loss) (in dollars per share)	`EarningsPerShareDiluted`	$-24.42	USD	Annual
Weighted average shares - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	18.30M	shares	Annual
Weighted average shares - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	18.44M	shares	Annual
Weighted average shares - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	18.30M	shares	Annual
Weighted average shares - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	18.87M	shares	Annual

Cash Flow Statement 109 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$288.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-446.90M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortizationExcludingAcquiredIntangiblesIncludingDiscontinuedOperations`	$110.05M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortizationExcludingAcquiredIntangiblesIncludingDiscontinuedOperations`	$151.46M	USD	Annual
Amortization of acquired intangibles, net	`AmortizationOfIntangiblesIncludingDiscontinuedOperations`	$10.07M	USD	Annual
Amortization of acquired intangibles, net	`AmortizationOfIntangiblesIncludingDiscontinuedOperations`	$13.24M	USD	Annual
Accretion of acquisition-related obligations discount	`AcquisitionRelatedObligationsDiscountAccretionExpense`	$-3.34M	USD	Annual
Accretion of acquisition-related obligations discount	`AcquisitionRelatedObligationsDiscountAccretionExpense`	$-1.26M	USD	Annual
Amortization of debt issuance costs and accretion of debt discount	`AmortizationOfFinancingCostsAndDiscounts`	$14.77M	USD	Annual
Amortization of debt issuance costs and accretion of debt discount	`AmortizationOfFinancingCostsAndDiscounts`	$12.34M	USD	Annual
Mark-to-market adjustment for acquisition-related obligations	`AcquisitionRelatedObligationsChangesinFairValueGainLoss`	$8.75M	USD	Annual
Mark-to-market adjustment for acquisition-related obligations	`AcquisitionRelatedObligationsChangesinFairValueGainLoss`	$-19.52M	USD	Annual
Loss on sale of business	`GainLossOnSaleOfBusiness`	-	USD	Annual
Loss on sale of business	`GainLossOnSaleOfBusiness`	$-36.11M	USD	Annual
Gain on disposal of assets, net	`GainLossonDispositionofAssetsIncludingCostofSales`	$9.91M	USD	Annual
Gain on disposal of assets, net	`GainLossonDispositionofAssetsIncludingCostofSales`	$2.40M	USD	Annual
Accretion on asset retirement obligations	`AssetRetirementObligationAccretionExpenseIncludingAdjustmentforLiabilitiesHeldforSaleandDiscontinuedOperations`	$26.52M	USD	Annual
Accretion on asset retirement obligations	`AssetRetirementObligationAccretionExpenseIncludingAdjustmentforLiabilitiesHeldforSaleandDiscontinuedOperations`	$30.66M	USD	Annual
Employee benefit plans, net	`IncreaseDecreaseInPensionAndPostretirementObligations`	$14.44M	USD	Annual
Employee benefit plans, net	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-1.75M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-163.00K	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$33.12M	USD	Annual
Asset impairment and restructuring	`RestructuringandAssetImpairmentChargesIncludingDiscontinuedOperations`	$-561.00K	USD	Annual
Asset impairment and restructuring	`RestructuringandAssetImpairmentChargesIncludingDiscontinuedOperations`	$256.52M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$5.32M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$4.90M	USD	Annual
Equity loss in affiliates	`IncomeLossFromEquityMethodInvestments`	$-4.15M	USD	Annual
Equity loss in affiliates	`IncomeLossFromEquityMethodInvestments`	$-3.47M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$-6.57M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$-5.97M	USD	Annual
Trade accounts receivable, net	`IncreaseDecreaseInAccountsReceivable`	$336.24M	USD	Annual
Trade accounts receivable, net	`IncreaseDecreaseInAccountsReceivable`	$-91.19M	USD	Annual
Inventories, net	`IncreaseDecreaseInInventories`	$21.33M	USD	Annual
Inventories, net	`IncreaseDecreaseInInventories`	$-48.69M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-61.58M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-28.15M	USD	Annual
Deposits	`IncreaseDecreaseInDepositOtherAssets`	$17.93M	USD	Annual
Deposits	`IncreaseDecreaseInDepositOtherAssets`	$-26.85M	USD	Annual
Other non-current assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$6.75M	USD	Annual
Other non-current assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$250.00K	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayable`	$-28.62M	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayable`	$25.15M	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$15.96M	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$15.43M	USD	Annual
Acquisition-related obligations	`IncreaseDecreaseinAcquisitionRelatedObligations`	$32.56M	USD	Annual
Acquisition-related obligations	`IncreaseDecreaseinAcquisitionRelatedObligations`	$18.12M	USD	Annual
Asset retirement obligations	`IncreaseDecreaseInAssetRetirementObligations`	$-16.31M	USD	Annual
Asset retirement obligations	`IncreaseDecreaseInAssetRetirementObligations`	$-19.38M	USD	Annual
Other non-current liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-24.59M	USD	Annual
Other non-current liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-43.83M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$129.24M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$174.94M	USD	Annual
Capital expenditures	`PaymentstoAcquireProductiveAssetsIncludingDiscontinuedOperations`	$153.99M	USD	Annual
Capital expenditures	`PaymentstoAcquireProductiveAssetsIncludingDiscontinuedOperations`	$83.30M	USD	Annual
Proceeds on disposal of assets	`ProceedsFromSaleOfProductiveAssets`	$4.02M	USD	Annual
Proceeds on disposal of assets	`ProceedsFromSaleOfProductiveAssets`	$8.22M	USD	Annual
Cash paid on sale of business	`CashPaidOnSaleOfBusiness`	-	USD	Annual
Cash paid on sale of business	`CashPaidOnSaleOfBusiness`	$52.19M	USD	Annual
Capital contributions to equity affiliates	`PaymentsToAcquireEquityMethodInvestmentsCapitalContributions`	$3.44M	USD	Annual
Capital contributions to equity affiliates	`PaymentsToAcquireEquityMethodInvestmentsCapitalContributions`	$6.68M	USD	Annual
Purchases of investment securities	`PaymentsToAcquireInvestments`	$17.98M	USD	Annual
Purchases of investment securities	`PaymentsToAcquireInvestments`	$21.13M	USD	Annual
Maturity of investment securities	`ProceedsFromSaleMaturityAndCollectionsOfInvestments`	$13.27M	USD	Annual
Maturity of investment securities	`ProceedsFromSaleMaturityAndCollectionsOfInvestments`	$16.68M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-77.00K	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$3.38M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-89.86M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-209.97M	USD	Annual
Proceeds from borrowings on long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$57.50M	USD	Annual
Proceeds from borrowings on long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Repurchases of long-term debt	`RepurchasesOfLongTermDebt`	-	USD	Annual
Repurchases of long-term debt	`RepurchasesOfLongTermDebt`	$18.41M	USD	Annual
Principal repayments of long-term debt	`RepaymentsOfLongTermDebt`	$119.10M	USD	Annual
Principal repayments of long-term debt	`RepaymentsOfLongTermDebt`	$76.49M	USD	Annual
Principal repayments of financing lease obligations	`FinanceLeasePrincipalPayments`	$3.18M	USD	Annual
Principal repayments of financing lease obligations	`FinanceLeasePrincipalPayments`	$2.06M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$6.68M	USD	Annual
Common stock repurchases and related expenses	`PaymentsForRepurchaseOfCommonStock`	$209.00K	USD	Annual
Common stock repurchases and related expenses	`PaymentsForRepurchaseOfCommonStock`	$786.00K	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-147.04M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-22.38M	USD	Annual
Net decrease in cash and cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-103.11M	USD	Annual
Net decrease in cash and cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-61.96M	USD	Annual
Cash and cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$347.68M	USD	Point-in-time
Cash and cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$244.57M	USD	Point-in-time
Cash and cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$182.61M	USD	Point-in-time
Cash and cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$347.68M	USD	Point-in-time
Cash and cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$244.57M	USD	Point-in-time
Cash and cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$182.61M	USD	Point-in-time
Cash paid for interest	`InterestPaidNet`	$49.29M	USD	Annual
Cash paid for interest	`InterestPaidNet`	$63.06M	USD	Annual
Cash paid for income taxes	`IncomeTaxesPaid`	$5.00K	USD	Annual
Cash paid for income taxes	`IncomeTaxesPaid`	$176.00K	USD	Annual
Cash received for income tax refunds	`ProceedsFromIncomeTaxRefunds`	$68.80M	USD	Annual
Cash received for income tax refunds	`ProceedsFromIncomeTaxRefunds`	$64.50M	USD	Annual
Financing leases and capital financing - equipment	`CapitalLeaseObligationsIncurred`	$4.41M	USD	Annual
Financing leases and capital financing - equipment	`CapitalLeaseObligationsIncurred`	$787.00K	USD	Annual
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$7.49M	USD	Annual
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$9.96M	USD	Annual
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$139.23M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$81.21M	USD	Point-in-time
Short-term restricted cash	`RestrictedCashCurrent`	$9.31M	USD	Point-in-time
Short-term restricted cash	`RestrictedCashCurrent`	$11.98M	USD	Point-in-time
Long-term restricted cash	`RestrictedCashNoncurrent`	$89.43M	USD	Point-in-time
Long-term restricted cash	`RestrictedCashNoncurrent`	$96.03M	USD	Point-in-time
Total cash and cash equivalents and restricted cash shown in the Consolidated Statements of Cash Flows	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$347.68M	USD	Point-in-time
Total cash and cash equivalents and restricted cash shown in the Consolidated Statements of Cash Flows	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$244.57M	USD	Point-in-time
Total cash and cash equivalents and restricted cash shown in the Consolidated Statements of Cash Flows	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$182.61M	USD	Point-in-time

Stockholders Equity 15 line items

Line Item	Tag	Value	Unit	Period
Beginning balance	`StockholdersEquity`	$696.12M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$546.91M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$200.10M	USD	Point-in-time
Net income (loss)	`NetIncomeLoss`	$288.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-446.90M	USD	Annual
Other comprehensive income (loss), net	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$53.48M	USD	Annual
Other comprehensive income (loss), net	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-53.37M	USD	Annual
Stock-based compensation and net issuance of common stock for share vesting	`StockIssuedDuringPeriodValueSharebasedCompensationIncludingAdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriod`	$3.72M	USD	Annual
Stock-based compensation and net issuance of common stock for share vesting	`StockIssuedDuringPeriodValueSharebasedCompensationIncludingAdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriod`	$5.32M	USD	Annual
Common stock reissuances, repurchases and related expenses	`TreasuryStockValueAcquiredReissuedAndRelatedExpenses`	$-786.00K	USD	Annual
Common stock reissuances, repurchases and related expenses	`TreasuryStockValueAcquiredReissuedAndRelatedExpenses`	$970.00K	USD	Annual
Warrant exercises	`StockIssuedDuringPeriodValueWarrantsExercised`	$6.00K	USD	Annual
Ending balance	`StockholdersEquity`	$696.12M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$546.91M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$200.10M	USD	Point-in-time

Comprehensive Income 18 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$288.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-446.90M	USD	Annual
Current period actuarial gain (loss)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$47.46M	USD	Annual
Current period actuarial gain (loss)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$-60.65M	USD	Annual
Income tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	-	USD	Annual
Income tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	-	USD	Annual
Current period actuarial (loss) gain, net of income tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-60.65M	USD	Annual
Current period actuarial (loss) gain, net of income tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$47.46M	USD	Annual
Less: reclassification adjustments for amounts reclassified to earnings due to amortization of net actuarial loss and settlements	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-7.28M	USD	Annual
Less: reclassification adjustments for amounts reclassified to earnings due to amortization of net actuarial loss and settlements	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-6.02M	USD	Annual
Income tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	-	USD	Annual
Income tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	-	USD	Annual
Less: reclamation adjustments for amounts reclassified to earnings due to amortization of net actuarial (gain) loss and settlements, net of income tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-6.02M	USD	Annual
Less: reclamation adjustments for amounts reclassified to earnings due to amortization of net actuarial (gain) loss and settlements, net of income tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-7.28M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$53.48M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-53.37M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-500.27M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$342.27M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.