10-Q Filing

CENTURY ALUMINUM CO CIK: 949157 Q3 2021

Filing Information

Form Type	10-Q
Accession Number	`0000949157-21-000132`
Period End Date	20210930
Filing Date	20211105
Fiscal Year	2021
Fiscal Period	Q3
XBRL Instance	cenx-20210930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 90 Income Statement 100 Cash Flow Statement 86 Stockholders Equity 29 Comprehensive Income 32

Balance Sheet 90 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$81.60M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$57.60M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$11.30M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$2.70M	USD	Point-in-time
Accounts receivable - net	`AccountsReceivableNetCurrent`	$51.00M	USD	Point-in-time
Accounts receivable - net	`AccountsReceivableNetCurrent`	$78.60M	USD	Point-in-time
Due from affiliates	`DueFromRelatedPartiesCurrent`	$10.30M	USD	Point-in-time
Due from affiliates	`DueFromRelatedPartiesCurrent`	$10.70M	USD	Point-in-time
Inventories	`InventoryNet`	$291.10M	USD	Point-in-time
Inventories	`InventoryNet`	$343.30M	USD	Point-in-time
Derivative assets	`DerivativeAssetsCurrent`	$33.70M	USD	Point-in-time
Derivative assets	`DerivativeAssetsCurrent`	$6.40M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$19.70M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$12.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$554.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$456.00M	USD	Point-in-time
Property, plant and equipment - net	`PropertyPlantAndEquipmentNet`	$880.40M	USD	Point-in-time
Property, plant and equipment - net	`PropertyPlantAndEquipmentNet`	$872.80M	USD	Point-in-time
Due from affiliates - less current portion	`DueFromRelatedPartiesNoncurrent`	-	USD	Point-in-time
Due from affiliates - less current portion	`DueFromRelatedPartiesNoncurrent`	$1.70M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$61.50M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$61.50M	USD	Point-in-time
TOTAL	`Assets`	$1.49B	USD	Point-in-time
TOTAL	`Assets`	$1.40B	USD	Point-in-time
Accounts payable, trade	`AccountsPayableTradeCurrent`	$106.10M	USD	Point-in-time
Accounts payable, trade	`AccountsPayableTradeCurrent`	$165.30M	USD	Point-in-time
Interest payable	`InterestPayableCurrent`	$15.00M	USD	Point-in-time
Interest payable	`InterestPayableCurrent`	$8.70M	USD	Point-in-time
Due to affiliates	`DueToAffiliateCurrent`	$87.10M	USD	Point-in-time
Due to affiliates	`DueToAffiliateCurrent`	$21.70M	USD	Point-in-time
Accrued and other current liabilities	`AccruedLiabilitiesCurrent`	$61.30M	USD	Point-in-time
Accrued and other current liabilities	`AccruedLiabilitiesCurrent`	$54.50M	USD	Point-in-time
Derivative liabilities	`DerivativeLiabilitiesCurrent`	$123.50M	USD	Point-in-time
Derivative liabilities	`DerivativeLiabilitiesCurrent`	$4.90M	USD	Point-in-time
Accrued employee benefits costs	`PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities`	$10.30M	USD	Point-in-time
Accrued employee benefits costs	`PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities`	$9.50M	USD	Point-in-time
Hawesville term loan	`NotesPayableRelatedPartiesClassifiedCurrent`	$5.00M	USD	Point-in-time
Hawesville term loan	`NotesPayableRelatedPartiesClassifiedCurrent`	$20.00M	USD	Point-in-time
U.S. revolving credit facility	`DebtDomestic`	$17.30M	USD	Point-in-time
U.S. revolving credit facility	`DebtDomestic`	-	USD	Point-in-time
Iceland revolving credit facility	`DebtForeignCurrent`	$30.00M	USD	Point-in-time
Iceland revolving credit facility	`DebtForeignCurrent`	-	USD	Point-in-time
Industrial revenue bonds	`IndustrialRevenueBonds`	$7.80M	USD	Point-in-time
Industrial revenue bonds	`IndustrialRevenueBonds`	$7.80M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$240.30M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$515.50M	USD	Point-in-time
Senior notes payable	`SeniorLongTermNotes`	$243.10M	USD	Point-in-time
Senior notes payable	`SeniorLongTermNotes`	$245.60M	USD	Point-in-time
Convertible senior notes payable	`ConvertibleLongTermNotesPayable`	$83.90M	USD	Point-in-time
Convertible senior notes payable	`ConvertibleLongTermNotesPayable`	-	USD	Point-in-time
Iceland revolving credit facility - less current portion	`DebtForeignNoncurrent`	$45.00M	USD	Point-in-time
Iceland revolving credit facility - less current portion	`DebtForeignNoncurrent`	-	USD	Point-in-time
Accrued pension benefits costs - less current portion	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$65.20M	USD	Point-in-time
Accrued pension benefits costs - less current portion	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$57.70M	USD	Point-in-time
Accrued postretirement benefits costs - less current portion	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$100.40M	USD	Point-in-time
Accrued postretirement benefits costs - less current portion	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$101.50M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$48.20M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$44.50M	USD	Point-in-time
Derivative liabilities - less current portion	`DerivativeLiabilitiesNoncurrent`	$23.90M	USD	Point-in-time
Derivative liabilities - less current portion	`DerivativeLiabilitiesNoncurrent`	$300.00K	USD	Point-in-time
Leases - right of use liabilities	`OperatingLeaseLiabilityNoncurrent`	$22.50M	USD	Point-in-time
Leases - right of use liabilities	`OperatingLeaseLiabilityNoncurrent`	$24.30M	USD	Point-in-time
Due to affiliates - less current portion	`DueToAffiliateNoncurrent`	$22.40M	USD	Point-in-time
Due to affiliates - less current portion	`DueToAffiliateNoncurrent`	$100.00K	USD	Point-in-time
Deferred taxes	`DeferredIncomeTaxLiabilitiesNet`	$48.90M	USD	Point-in-time
Deferred taxes	`DeferredIncomeTaxLiabilitiesNet`	$89.20M	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$613.20M	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$653.50M	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock (Note 6)	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock (Note 6)	`PreferredStockValue`	-	USD	Point-in-time
Common stock (Note 6)	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock (Note 6)	`CommonStockValue`	$1.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.53B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.53B	USD	Point-in-time
Treasury stock, at cost	`TreasuryStockValue`	$86.30M	USD	Point-in-time
Treasury stock, at cost	`TreasuryStockValue`	$86.30M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-118.80M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-115.20M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.78B	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-2.01B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$592.40M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$648.70M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$320.20M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$370.40M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$675.00M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$546.10M	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.40B	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.49B	USD	Point-in-time

Income Statement 100 line items

Line Item	Tag	Value	Unit	Period
Related parties	`RevenueFromRelatedParties`	$792.40M	USD	3 Qtrs
Related parties	`RevenueFromRelatedParties`	$350.60M	USD	1 Quarter
Related parties	`RevenueFromRelatedParties`	$235.80M	USD	1 Quarter
Related parties	`RevenueFromRelatedParties`	$925.30M	USD	3 Qtrs
Other customers	`OtherOperatingIncome`	$157.10M	USD	1 Quarter
Other customers	`OtherOperatingIncome`	$628.10M	USD	3 Qtrs
Other customers	`OtherOperatingIncome`	$230.80M	USD	1 Quarter
Other customers	`OtherOperatingIncome`	$423.60M	USD	3 Qtrs
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$392.90M	USD	1 Quarter
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.22B	USD	3 Qtrs
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$581.40M	USD	1 Quarter
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.55B	USD	3 Qtrs
Cost of goods sold	`CostOfGoodsAndServicesSold`	$1.50B	USD	3 Qtrs
Cost of goods sold	`CostOfGoodsAndServicesSold`	$420.00M	USD	1 Quarter
Cost of goods sold	`CostOfGoodsAndServicesSold`	$1.25B	USD	3 Qtrs
Cost of goods sold	`CostOfGoodsAndServicesSold`	$526.80M	USD	1 Quarter
Gross profit (loss)	`GrossProfit`	$-27.10M	USD	1 Quarter
Gross profit (loss)	`GrossProfit`	$54.80M	USD	3 Qtrs
Gross profit (loss)	`GrossProfit`	$54.60M	USD	1 Quarter
Gross profit (loss)	`GrossProfit`	$-35.30M	USD	3 Qtrs
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$39.00M	USD	3 Qtrs
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$11.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$14.20M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$31.70M	USD	3 Qtrs
Other operating (income) expense - net	`OtherOperatingIncomeExpenseNet`	$-300.00K	USD	3 Qtrs
Other operating (income) expense - net	`OtherOperatingIncomeExpenseNet`	$200.00K	USD	1 Quarter
Other operating (income) expense - net	`OtherOperatingIncomeExpenseNet`	$-100.00K	USD	1 Quarter
Other operating (income) expense - net	`OtherOperatingIncomeExpenseNet`	$-300.00K	USD	3 Qtrs
Operating income (loss)	`OperatingIncomeLoss`	$-37.90M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$15.50M	USD	3 Qtrs
Operating income (loss)	`OperatingIncomeLoss`	$-67.30M	USD	3 Qtrs
Operating income (loss)	`OperatingIncomeLoss`	$40.30M	USD	1 Quarter
Interest expense - Hawesville term loan	`InterestExpenseRelatedParty`	$1.60M	USD	3 Qtrs
Interest expense - Hawesville term loan	`InterestExpenseRelatedParty`	$1.10M	USD	3 Qtrs
Interest expense - Hawesville term loan	`InterestExpenseRelatedParty`	$400.00K	USD	1 Quarter
Interest expense - Hawesville term loan	`InterestExpenseRelatedParty`	$600.00K	USD	1 Quarter
Interest expense	`InterestExpenseDebt`	$9.10M	USD	1 Quarter
Interest expense	`InterestExpenseDebt`	$21.00M	USD	3 Qtrs
Interest expense	`InterestExpenseDebt`	$6.10M	USD	1 Quarter
Interest expense	`InterestExpenseDebt`	$22.60M	USD	3 Qtrs
Interest income	`InterestIncomeOther`	$100.00K	USD	1 Quarter
Interest income	`InterestIncomeOther`	$600.00K	USD	3 Qtrs
Interest income	`InterestIncomeOther`	-	USD	1 Quarter
Interest income	`InterestIncomeOther`	$200.00K	USD	3 Qtrs
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$-1.90M	USD	3 Qtrs
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$-76.70M	USD	1 Quarter
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$-239.20M	USD	3 Qtrs
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$-9.40M	USD	1 Quarter
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	$-1.20M	USD	1 Quarter
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	-	USD	1 Quarter
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	$-24.70M	USD	3 Qtrs
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	$-1.20M	USD	3 Qtrs
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	$3.00M	USD	3 Qtrs
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	$600.00K	USD	3 Qtrs
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	$-2.50M	USD	1 Quarter
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	-	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossAttributableToParent`	$-271.30M	USD	3 Qtrs
Income (loss) before income taxes	`IncomeLossAttributableToParent`	$-89.40M	USD	3 Qtrs
Income (loss) before income taxes	`IncomeLossAttributableToParent`	$-57.90M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossAttributableToParent`	$-45.60M	USD	1 Quarter
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$-1.60M	USD	3 Qtrs
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$6.80M	USD	1 Quarter
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$300.00K	USD	1 Quarter
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$-43.80M	USD	3 Qtrs
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-227.50M	USD	3 Qtrs
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-52.40M	USD	1 Quarter
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-58.20M	USD	1 Quarter
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-87.80M	USD	3 Qtrs
Equity in earnings of joint ventures	`EquityInEarningsOfJointVenture`	-	USD	3 Qtrs
Equity in earnings of joint ventures	`EquityInEarningsOfJointVenture`	-	USD	3 Qtrs
Equity in earnings of joint ventures	`EquityInEarningsOfJointVenture`	-	USD	1 Quarter
Equity in earnings of joint ventures	`EquityInEarningsOfJointVenture`	-	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-227.50M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-87.80M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-58.20M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-52.40M	USD	1 Quarter
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersDiluted`	$-227.50M	USD	3 Qtrs
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersDiluted`	$-58.20M	USD	1 Quarter
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersDiluted`	$-52.40M	USD	1 Quarter
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersDiluted`	$-87.80M	USD	3 Qtrs
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-227.50M	USD	3 Qtrs
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-87.80M	USD	3 Qtrs
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-58.20M	USD	1 Quarter
Net income (loss) allocated to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-52.40M	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.65	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-2.52	USD	3 Qtrs
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.58	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.98	USD	3 Qtrs
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.58	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-2.52	USD	3 Qtrs
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.65	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.98	USD	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	90.10M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	89.50M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	90.10M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	89.40M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	90.10M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	90.10M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	89.50M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	89.40M	shares	3 Qtrs

Cash Flow Statement 86 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$-227.50M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-87.80M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-58.20M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-52.40M	USD	1 Quarter
Unrealized (gain) loss on derivative instruments	`UnrealizedGainLossOnDerivatives`	$-2.30M	USD	3 Qtrs
Unrealized (gain) loss on derivative instruments	`UnrealizedGainLossOnDerivatives`	$-160.60M	USD	3 Qtrs
Lower of cost or NRV inventory adjustment	`InventoryWriteDown`	$40.80M	USD	3 Qtrs
Lower of cost or NRV inventory adjustment	`InventoryWriteDown`	-	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$61.70M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$62.40M	USD	3 Qtrs
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-1.00M	USD	3 Qtrs
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-24.70M	USD	3 Qtrs
Change in deferred tax benefit	`DeferredIncomeTaxExpenseBenefit`	-	USD	3 Qtrs
Change in deferred tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-40.90M	USD	3 Qtrs
Other non-cash items - net	`OtherNoncashIncomeExpense`	$-2.60M	USD	3 Qtrs
Other non-cash items - net	`OtherNoncashIncomeExpense`	$-1.50M	USD	3 Qtrs
Accounts receivable - net	`IncreaseDecreaseInAccountsReceivable`	$27.60M	USD	3 Qtrs
Accounts receivable - net	`IncreaseDecreaseInAccountsReceivable`	$-19.50M	USD	3 Qtrs
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$-14.90M	USD	3 Qtrs
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$1.70M	USD	3 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$52.20M	USD	3 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$-12.30M	USD	3 Qtrs
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$1.00M	USD	3 Qtrs
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$4.80M	USD	3 Qtrs
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$-12.00M	USD	3 Qtrs
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$46.70M	USD	3 Qtrs
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$43.10M	USD	3 Qtrs
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$-29.90M	USD	3 Qtrs
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$6.70M	USD	3 Qtrs
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$3.50M	USD	3 Qtrs
Ravenswood retiree medical settlement	`IncreaseDecreaseInEstimatedLitigationLiability`	$-2.00M	USD	3 Qtrs
Ravenswood retiree medical settlement	`IncreaseDecreaseInEstimatedLitigationLiability`	$-2.00M	USD	3 Qtrs
Other - net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-1.00M	USD	3 Qtrs
Other - net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-5.30M	USD	3 Qtrs
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-12.10M	USD	3 Qtrs
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$33.30M	USD	3 Qtrs
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$11.50M	USD	3 Qtrs
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$45.70M	USD	3 Qtrs
Proceeds from sales of property, plant & equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	3 Qtrs
Proceeds from sales of property, plant & equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$100.00K	USD	3 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-45.70M	USD	3 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-11.40M	USD	3 Qtrs
Repayment of Senior Notes due 2021	`RepaymentsOfDebt`	-	USD	3 Qtrs
Repayment of Senior Notes due 2021	`RepaymentsOfDebt`	$250.00M	USD	3 Qtrs
Proceeds from issuance of Senior Notes due 2025	`ProceedsFromIssuanceOfDebt`	$243.80M	USD	3 Qtrs
Proceeds from issuance of Senior Notes due 2025	`ProceedsFromIssuanceOfDebt`	-	USD	3 Qtrs
Repayment of Senior Notes due 2025	`RepaymentsOfSeniorDebt`	$250.00M	USD	3 Qtrs
Repayment of Senior Notes due 2025	`RepaymentsOfSeniorDebt`	-	USD	3 Qtrs
Early redemption and tender premiums paid	`PaymentsOfDebtExtinguishmentCosts`	-	USD	3 Qtrs
Early redemption and tender premiums paid	`PaymentsOfDebtExtinguishmentCosts`	$18.10M	USD	3 Qtrs
Proceeds from issuance of Senior Notes due 2028	`ProceedsFromIssuanceOfSeniorLongTermDebt`	-	USD	3 Qtrs
Proceeds from issuance of Senior Notes due 2028	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$250.00M	USD	3 Qtrs
Proceeds from issuance of Convertible Senior Notes	`ProceedsFromConvertibleDebt`	-	USD	3 Qtrs
Proceeds from issuance of Convertible Senior Notes	`ProceedsFromConvertibleDebt`	$86.30M	USD	3 Qtrs
Repayments on Hawesville term loan	`RepaymentsofTermLoan`	$15.00M	USD	3 Qtrs
Repayments on Hawesville term loan	`RepaymentsofTermLoan`	$15.00M	USD	3 Qtrs
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$173.60M	USD	3 Qtrs
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$644.20M	USD	3 Qtrs
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$641.80M	USD	3 Qtrs
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$127.60M	USD	3 Qtrs
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$1.10M	USD	3 Qtrs
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$7.50M	USD	3 Qtrs
Debt retirement costs	`PaymentOfDebtRetirementCostsNet`	$200.00K	USD	3 Qtrs
Debt retirement costs	`PaymentOfDebtRetirementCostsNet`	-	USD	3 Qtrs
Purchases of capped calls related to Convertible Senior Notes	`PaymentForOptionIndexedToIssuersEquity`	$5.70M	USD	3 Qtrs
Purchases of capped calls related to Convertible Senior Notes	`PaymentForOptionIndexedToIssuersEquity`	-	USD	3 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$23.50M	USD	3 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$42.40M	USD	3 Qtrs
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$45.40M	USD	3 Qtrs
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-15.40M	USD	3 Qtrs
Cash, cash equivalents and restricted cash, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$68.90M	USD	Point-in-time
Cash, cash equivalents and restricted cash, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$39.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$84.30M	USD	Point-in-time
Cash, cash equivalents and restricted cash, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.10M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$68.90M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$39.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$84.30M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.10M	USD	Point-in-time
Interest	`InterestPaidNet`	$14.10M	USD	3 Qtrs
Interest	`InterestPaidNet`	$26.00M	USD	3 Qtrs
Taxes	`IncomeTaxesPaid`	-	USD	3 Qtrs
Taxes	`IncomeTaxesPaid`	$100.00K	USD	3 Qtrs
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$6.10M	USD	3 Qtrs
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$400.00K	USD	3 Qtrs
Capitalized interest	`InterestPaidCapitalized`	$800.00K	USD	3 Qtrs
Capitalized interest	`InterestPaidCapitalized`	-	USD	3 Qtrs

Stockholders Equity 29 line items

Line Item	Tag	Value	Unit	Period
Balance, start	`StockholdersEquity`	$592.40M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$648.70M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$320.20M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$370.40M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$675.00M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$546.10M	USD	Point-in-time
Net income (loss)	`NetIncomeLoss`	$-227.50M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-87.80M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-58.20M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-52.40M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$3.30M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$3.60M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$1.10M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$1.20M	USD	1 Quarter
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.00M	USD	1 Quarter
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$800.00K	USD	1 Quarter
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.60M	USD	3 Qtrs
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.90M	USD	3 Qtrs
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	1 Quarter
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	3 Qtrs
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	3 Qtrs
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	1 Quarter
Capped call premiums	`AdjustmentsToAdditionalPaidInCapitalOptionIndexedToIssuersEquityCappedCallPremium`	$4.60M	USD	3 Qtrs
Balance, end	`StockholdersEquity`	$592.40M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$648.70M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$320.20M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$370.40M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$675.00M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$546.10M	USD	Point-in-time

Comprehensive Income 32 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$-227.50M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-87.80M	USD	3 Qtrs
Net income (loss)	`NetIncomeLoss`	$-58.20M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-52.40M	USD	1 Quarter
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	$100.00K	USD	3 Qtrs
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	-	USD	1 Quarter
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	$100.00K	USD	1 Quarter
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	$100.00K	USD	3 Qtrs
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-2.40M	USD	3 Qtrs
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-800.00K	USD	1 Quarter
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-700.00K	USD	1 Quarter
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-2.30M	USD	3 Qtrs
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-2.10M	USD	1 Quarter
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-2.10M	USD	1 Quarter
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-6.30M	USD	3 Qtrs
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-6.50M	USD	3 Qtrs
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$1.30M	USD	1 Quarter
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$3.80M	USD	3 Qtrs
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$4.10M	USD	3 Qtrs
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$1.30M	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossTax`	$200.00K	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossTax`	$100.00K	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossTax`	$200.00K	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossTax`	$800.00K	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$3.30M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$3.60M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$1.10M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$1.20M	USD	1 Quarter
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-57.10M	USD	1 Quarter
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-51.20M	USD	1 Quarter
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-223.90M	USD	3 Qtrs
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-84.50M	USD	3 Qtrs

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