10-K Filing

CENTURY ALUMINUM CO CIK: 949157 FY 2021

Filing Information

Form Type	10-K
Accession Number	`0000949157-22-000024`
Period End Date	20211231
Filing Date	20220225
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	cenx-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 87 Income Statement 66 Cash Flow Statement 140 Stockholders Equity 21 Comprehensive Income 27

Balance Sheet 87 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$29.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$81.60M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$11.70M	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`	$80.60M	USD	Point-in-time
Due from affiliates	`DueFromRelatedPartiesCurrent`	$10.30M	USD	Point-in-time
Due from affiliates	`DueFromRelatedPartiesCurrent`	$8.30M	USD	Point-in-time
Inventories	`InventoryNet`	$291.10M	USD	Point-in-time
Inventories	`InventoryNet`	$425.60M	USD	Point-in-time
Derivative assets	`DerivativeAssetsCurrent`	$34.80M	USD	Point-in-time
Derivative assets	`DerivativeAssetsCurrent`	$6.40M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$28.20M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$12.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$456.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$618.20M	USD	Point-in-time
Property, plant and equipment - net	`PropertyPlantAndEquipmentNet`	$892.50M	USD	Point-in-time
Property, plant and equipment - net	`PropertyPlantAndEquipmentNet`	$880.40M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$61.50M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$59.20M	USD	Point-in-time
Due from affiliates - less current portion	`DueFromRelatedPartiesNoncurrent`	$1.70M	USD	Point-in-time
Due from affiliates - less current portion	`DueFromRelatedPartiesNoncurrent`	-	USD	Point-in-time
TOTAL	`Assets`	$1.40B	USD	Point-in-time
TOTAL	`Assets`	$1.57B	USD	Point-in-time
TOTAL	`Assets`	$1.50B	USD	Point-in-time
Accounts payable, trade	`AccountsPayableTradeCurrent`	$186.50M	USD	Point-in-time
Accounts payable, trade	`AccountsPayableTradeCurrent`	$106.10M	USD	Point-in-time
Interest payable	`InterestPayableCurrent`	$15.00M	USD	Point-in-time
Interest payable	`InterestPayableCurrent`	-	USD	Point-in-time
Due to affiliates	`DueToAffiliateCurrent`	$65.80M	USD	Point-in-time
Due to affiliates	`DueToAffiliateCurrent`	$21.70M	USD	Point-in-time
Accrued and other current liabilities	`AccruedLiabilitiesCurrent`	$62.70M	USD	Point-in-time
Accrued and other current liabilities	`AccruedLiabilitiesCurrent`	$54.50M	USD	Point-in-time
Derivative liabilities	`DerivativeLiabilitiesCurrent`	$4.90M	USD	Point-in-time
Derivative liabilities	`DerivativeLiabilitiesCurrent`	$102.10M	USD	Point-in-time
Accrued employee benefits costs	`PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities`	$10.30M	USD	Point-in-time
Accrued employee benefits costs	`PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities`	$8.90M	USD	Point-in-time
Hawesville term loan	`NotesPayableRelatedPartiesClassifiedCurrent`	$20.00M	USD	Point-in-time
Hawesville term loan	`NotesPayableRelatedPartiesClassifiedCurrent`	-	USD	Point-in-time
U.S. revolving credit facility	`DebtDomestic`	$63.60M	USD	Point-in-time
U.S. revolving credit facility	`DebtDomestic`	-	USD	Point-in-time
Iceland revolving credit facility	`DebtForeignCurrent`	$50.00M	USD	Point-in-time
Iceland revolving credit facility	`DebtForeignCurrent`	-	USD	Point-in-time
Industrial revenue bonds	`IndustrialRevenueBondsCurrent`	$7.80M	USD	Point-in-time
Industrial revenue bonds	`IndustrialRevenueBondsCurrent`	$7.80M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$547.40M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$240.30M	USD	Point-in-time
Senior notes payable	`SeniorLongTermNotes`	$243.10M	USD	Point-in-time
Senior notes payable	`SeniorLongTermNotes`	$245.80M	USD	Point-in-time
Convertible senior notes payable	`ConvertibleLongTermNotesPayable`	$84.00M	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`	$28.60M	USD	Point-in-time
Accrued pension benefits costs - less current portion	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$65.20M	USD	Point-in-time
Accrued postretirement benefits costs - less current portion	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$101.50M	USD	Point-in-time
Accrued postretirement benefits costs - less current portion	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$93.30M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$46.30M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$44.80M	USD	Point-in-time
Leases - right of use liabilities	`OperatingLeaseLiabilityNoncurrent`	$24.30M	USD	Point-in-time
Leases - right of use liabilities	`OperatingLeaseLiabilityNoncurrent`	$22.90M	USD	Point-in-time
Due to affiliates - less current portion	`DueToAffiliateNoncurrent`	$100.00K	USD	Point-in-time
Due to affiliates - less current portion	`DueToAffiliateNoncurrent`	$21.90M	USD	Point-in-time
Deferred taxes	`DeferredIncomeTaxLiabilitiesNet`	$89.20M	USD	Point-in-time
Deferred taxes	`DeferredIncomeTaxLiabilitiesNet`	$58.70M	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$601.50M	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$613.20M	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock (Note 7)	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock (Note 7)	`PreferredStockValue`	-	USD	Point-in-time
Common stock (Note 7)	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock (Note 7)	`CommonStockValue`	$1.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.53B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.54B	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`	$-82.30M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.95B	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.78B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$762.20M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$675.00M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$421.00M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$546.10M	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.57B	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.40B	USD	Point-in-time

Income Statement 66 line items

Line Item	Tag	Value	Unit	Period
Related parties	`RevenueFromRelatedParties`	$1.03B	USD	Annual
Related parties	`RevenueFromRelatedParties`	$1.19B	USD	Annual
Related parties	`RevenueFromRelatedParties`	$1.34B	USD	Annual
Other customers	`OtherOperatingIncome`	$875.50M	USD	Annual
Other customers	`OtherOperatingIncome`	$645.00M	USD	Annual
Other customers	`OtherOperatingIncome`	$579.60M	USD	Annual
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.84B	USD	Annual
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.21B	USD	Annual
Total net sales	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.61B	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$1.64B	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$2.09B	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$1.86B	USD	Annual
Gross profit (loss)	`GrossProfit`	$124.20M	USD	Annual
Gross profit (loss)	`GrossProfit`	$-23.90M	USD	Annual
Gross profit (loss)	`GrossProfit`	$-36.50M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$43.50M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$47.40M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$57.60M	USD	Annual
Other operating expense - net	`OtherOperatingIncomeExpenseNet`	$-500.00K	USD	Annual
Other operating expense - net	`OtherOperatingIncomeExpenseNet`	$-800.00K	USD	Annual
Other operating expense - net	`OtherOperatingIncomeExpenseNet`	$-600.00K	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$-80.50M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$-72.10M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$66.00M	USD	Annual
Interest expense Hawesville term loan	`InterestExpenseRelatedParty`	$2.10M	USD	Annual
Interest expense Hawesville term loan	`InterestExpenseRelatedParty`	$1.60M	USD	Annual
Interest expense Hawesville term loan	`InterestExpenseRelatedParty`	$1.90M	USD	Annual
Interest expense	`InterestExpenseDebt`	$28.80M	USD	Annual
Interest expense	`InterestExpenseDebt`	$29.70M	USD	Annual
Interest expense	`InterestExpenseDebt`	$23.00M	USD	Annual
Interest income	`InterestIncomeOther`	$800.00K	USD	Annual
Interest income	`InterestIncomeOther`	$800.00K	USD	Annual
Interest income	`InterestIncomeOther`	$800.00K	USD	Annual
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$-212.40M	USD	Annual
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$-17.30M	USD	Annual
Net gain (loss) on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$12.00M	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-1.20M	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-24.70M	USD	Annual
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	$-1.10M	USD	Annual
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	$3.10M	USD	Annual
Other income (expense) - net	`OtherNonoperatingIncomeExpense`	$3.50M	USD	Annual
Income (loss) before income taxes and equity in earnings of joint ventures	`IncomeLossBeforeIncomeTaxesAndEquityMethodInvestmentsInNoncontrollingInterest`	$-126.30M	USD	Annual
Income (loss) before income taxes and equity in earnings of joint ventures	`IncomeLossBeforeIncomeTaxesAndEquityMethodInvestmentsInNoncontrollingInterest`	$-197.60M	USD	Annual
Income (loss) before income taxes and equity in earnings of joint ventures	`IncomeLossBeforeIncomeTaxesAndEquityMethodInvestmentsInNoncontrollingInterest`	$-85.50M	USD	Annual
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$-8.40M	USD	Annual
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$-3.10M	USD	Annual
Income tax benefit (expense)	`IncomeTaxExpenseBenefit`	$-30.60M	USD	Annual
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-123.20M	USD	Annual
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-167.00M	USD	Annual
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-77.10M	USD	Annual
Loss on sale of BHH	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Loss on sale of BHH	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Loss on sale of BHH	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$4.30M	USD	Annual
Equity in earnings of joint ventures	`IncomeLossFromEquityMethodInvestments`	$-100.00K	USD	Annual
Equity in earnings of joint ventures	`IncomeLossFromEquityMethodInvestments`	$-100.00K	USD	Annual
Equity in earnings of joint ventures	`IncomeLossFromEquityMethodInvestments`	$600.00K	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-167.10M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-123.30M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-80.80M	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-1.38	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-1.85	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.91	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-1.85	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-1.38	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.91	USD	Annual

Cash Flow Statement 140 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$-167.10M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-123.30M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-80.80M	USD	Annual
Lower of cost or NRV inventory adjustment	`InventoryWriteDown`	-	USD	Annual
Lower of cost or NRV inventory adjustment	`InventoryWriteDown`	$18.80M	USD	Annual
Lower of cost or NRV inventory adjustment	`InventoryWriteDown`	$45.00M	USD	Annual
Unrealized (gains) losses on forward and derivative contracts	`UnrealizedGainLossOnDerivatives`	$-102.90M	USD	Annual
Unrealized (gains) losses on forward and derivative contracts	`UnrealizedGainLossOnDerivatives`	$11.40M	USD	Annual
Unrealized (gains) losses on forward and derivative contracts	`UnrealizedGainLossOnDerivatives`	$-15.70M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$82.60M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$83.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$83.20M	USD	Annual
Change in deferred tax benefit	`DeferredIncomeTaxesAndTaxCredits`	$-30.60M	USD	Annual
Change in deferred tax benefit	`DeferredIncomeTaxesAndTaxCredits`	-	USD	Annual
Change in deferred tax benefit	`DeferredIncomeTaxesAndTaxCredits`	-	USD	Annual
Net loss on sale of BHH	`GainLossOnSaleOfInvestments`	$-4.30M	USD	Annual
Net loss on sale of BHH	`GainLossOnSaleOfInvestments`	-	USD	Annual
Net loss on sale of BHH	`GainLossOnSaleOfInvestments`	-	USD	Annual
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	$-24.70M	USD	Annual
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	-	USD	Annual
Loss on early extinguishment of debt	`GainLossOnExtinguishmentOfDebtNet`	$-1.00M	USD	Annual
Other non-cash items - net	`OtherOperatingActivitiesCashFlowStatement`	$-1.70M	USD	Annual
Other non-cash items - net	`OtherOperatingActivitiesCashFlowStatement`	$-5.90M	USD	Annual
Other non-cash items - net	`OtherOperatingActivitiesCashFlowStatement`	$-900.00K	USD	Annual
Accounts receivable - net	`IncreaseDecreaseInAccountsReceivable`	$-12.40M	USD	Annual
Accounts receivable - net	`IncreaseDecreaseInAccountsReceivable`	$-19.10M	USD	Annual
Accounts receivable - net	`IncreaseDecreaseInAccountsReceivable`	$16.20M	USD	Annual
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$-20.80M	USD	Annual
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$7.10M	USD	Annual
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$-700.00K	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$15.50M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-4.40M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$134.50M	USD	Annual
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-600.00K	USD	Annual
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$13.40M	USD	Annual
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-2.70M	USD	Annual
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$20.60M	USD	Annual
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$-25.20M	USD	Annual
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$44.80M	USD	Annual
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$38.30M	USD	Annual
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$22.60M	USD	Annual
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$-22.40M	USD	Annual
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$2.70M	USD	Annual
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$5.00M	USD	Annual
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-1.20M	USD	Annual
Ravenswood retiree legal settlement	`IncreaseDecreaseinEstimatedLitigationLiability`	$-2.00M	USD	Annual
Ravenswood retiree legal settlement	`IncreaseDecreaseinEstimatedLitigationLiability`	$-2.00M	USD	Annual
Ravenswood retiree legal settlement	`IncreaseDecreaseinEstimatedLitigationLiability`	$-2.00M	USD	Annual
Other - net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$1.00M	USD	Annual
Other - net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-2.40M	USD	Annual
Other - net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-1.80M	USD	Annual
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-64.70M	USD	Annual
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$42.90M	USD	Annual
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$17.70M	USD	Annual
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$13.40M	USD	Annual
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$59.60M	USD	Annual
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$83.00M	USD	Annual
Proceeds from sale of property, plant and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	Annual
Proceeds from sale of property, plant and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$1.60M	USD	Annual
Proceeds from sale of property, plant and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$400.00K	USD	Annual
Proceeds from sale of joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	-	USD	Annual
Proceeds from sale of joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	$20.80M	USD	Annual
Proceeds from sale of joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	-	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-82.60M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-11.80M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-38.80M	USD	Annual
Repayment of Senior Notes due 2021	`RepaymentsOfDebt`	-	USD	Annual
Repayment of Senior Notes due 2021	`RepaymentsOfDebt`	$250.00M	USD	Annual
Repayment of Senior Notes due 2021	`RepaymentsOfDebt`	-	USD	Annual
Proceeds from issuance of Senior Notes due 2025	`ProceedsFromIssuanceOfDebt`	-	USD	Annual
Proceeds from issuance of Senior Notes due 2025	`ProceedsFromIssuanceOfDebt`	$243.80M	USD	Annual
Proceeds from issuance of Senior Notes due 2025	`ProceedsFromIssuanceOfDebt`	-	USD	Annual
Repayment of Senior Notes due 2025	`RepaymentsOfSeniorDebt`	-	USD	Annual
Repayment of Senior Notes due 2025	`RepaymentsOfSeniorDebt`	-	USD	Annual
Repayment of Senior Notes due 2025	`RepaymentsOfSeniorDebt`	$250.00M	USD	Annual
Early redemption and tender premiums paid	`PaymentsOfDebtExtinguishmentCosts`	-	USD	Annual
Early redemption and tender premiums paid	`PaymentsOfDebtExtinguishmentCosts`	$18.10M	USD	Annual
Early redemption and tender premiums paid	`PaymentsOfDebtExtinguishmentCosts`	-	USD	Annual
Proceeds from issuance of Senior Notes due 2028	`ProceedsFromIssuanceOfSeniorLongTermDebt`	-	USD	Annual
Proceeds from issuance of Senior Notes due 2028	`ProceedsFromIssuanceOfSeniorLongTermDebt`	-	USD	Annual
Proceeds from issuance of Senior Notes due 2028	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$250.00M	USD	Annual
Proceeds from issuance of Convertible Senior Notes	`ProceedsFromConvertibleDebt`	-	USD	Annual
Proceeds from issuance of Convertible Senior Notes	`ProceedsFromConvertibleDebt`	$86.30M	USD	Annual
Proceeds from issuance of Convertible Senior Notes	`ProceedsFromConvertibleDebt`	-	USD	Annual
Borrowings under Hawesville term loan	`ProceedsFromRelatedPartyDebt`	-	USD	Annual
Borrowings under Hawesville term loan	`ProceedsFromRelatedPartyDebt`	$40.00M	USD	Annual
Borrowings under Hawesville term loan	`ProceedsFromRelatedPartyDebt`	-	USD	Annual
Repayments under Hawesville Term Loan	`RepaymentsOfTermLoan`	$20.00M	USD	Annual
Repayments under Hawesville Term Loan	`RepaymentsOfTermLoan`	$20.00M	USD	Annual
Repayments under Hawesville Term Loan	`RepaymentsOfTermLoan`	-	USD	Annual
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$388.10M	USD	Annual
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$258.90M	USD	Annual
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$978.80M	USD	Annual
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$217.90M	USD	Annual
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$910.20M	USD	Annual
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$407.30M	USD	Annual
Debt issuance cost	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt issuance cost	`PaymentsOfDebtIssuanceCosts`	$7.40M	USD	Annual
Debt issuance cost	`PaymentsOfDebtIssuanceCosts`	$1.10M	USD	Annual
Debt retirement cost	`PaymentOfDebtRetirementCostsNet`	-	USD	Annual
Debt retirement cost	`PaymentOfDebtRetirementCostsNet`	-	USD	Annual
Debt retirement cost	`PaymentOfDebtRetirementCostsNet`	$200.00K	USD	Annual
Other short-term borrowings	`ProceedsFromOtherShortTermDebt`	$3.40M	USD	Annual
Other short-term borrowings	`ProceedsFromOtherShortTermDebt`	-	USD	Annual
Other short-term borrowings	`ProceedsFromOtherShortTermDebt`	-	USD	Annual
Repayments on other short-term borrowings	`RepaymentsOfOtherShortTermDebt`	-	USD	Annual
Repayments on other short-term borrowings	`RepaymentsOfOtherShortTermDebt`	$3.40M	USD	Annual
Repayments on other short-term borrowings	`RepaymentsOfOtherShortTermDebt`	-	USD	Annual
Purchase of capped calls related to Convertible Senior Notes	`PaymentForOptionIndexedToIssuersEquity`	$5.70M	USD	Annual
Purchase of capped calls related to Convertible Senior Notes	`PaymentForOptionIndexedToIssuersEquity`	-	USD	Annual
Purchase of capped calls related to Convertible Senior Notes	`PaymentForOptionIndexedToIssuersEquity`	-	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$300.00K	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$13.50M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$21.10M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$103.70M	USD	Annual
CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	-	USD	Annual
CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-43.60M	USD	Annual
CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$44.60M	USD	Annual
Cash, cash equivalents and restricted cash, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$39.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$39.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$84.30M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$39.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$39.70M	USD	Point-in-time
Cash, cash equivalents and restricted cash, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$84.30M	USD	Point-in-time
Interest	`InterestPaidNet`	$14.50M	USD	Annual
Interest	`InterestPaidNet`	$36.80M	USD	Annual
Interest	`InterestPaidNet`	$21.80M	USD	Annual
Taxes	`IncomeTaxesPaid`	$3.10M	USD	Annual
Taxes	`IncomeTaxesPaid`	$200.00K	USD	Annual
Taxes	`IncomeTaxesPaid`	$500.00K	USD	Annual
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$3.00M	USD	Annual
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$7.10M	USD	Annual
Capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$900.00K	USD	Annual
Capitalized interest	`InterestPaidCapitalized`	-	USD	Annual
Capitalized interest	`InterestPaidCapitalized`	$1.60M	USD	Annual
Capitalized interest	`InterestPaidCapitalized`	-	USD	Annual

Stockholders Equity 21 line items

Line Item	Tag	Value	Unit	Period
Balance, start	`StockholdersEquity`	$762.20M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$675.00M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$421.00M	USD	Point-in-time
Balance, start	`StockholdersEquity`	$546.10M	USD	Point-in-time
Net income (loss)	`NetIncomeLoss`	$-167.10M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-123.30M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-80.80M	USD	Annual
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-9.80M	USD	Annual
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-8.90M	USD	Annual
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$36.50M	USD	Annual
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.40M	USD	Annual
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$10.10M	USD	Annual
Share-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.50M	USD	Annual
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	Annual
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	Annual
Conversion of preferred stock to common stock	`ConversionOfStockAmountConverted1`	-	USD	Annual
Capped call premiums	`AdjustmentsToAdditionalPaidInCapitalOptionIndexedToIssuersEquityCappedCallPremium`	$4.60M	USD	Annual
Balance, end	`StockholdersEquity`	$762.20M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$675.00M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$421.00M	USD	Point-in-time
Balance, end	`StockholdersEquity`	$546.10M	USD	Point-in-time

Comprehensive Income 27 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$-167.10M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-123.30M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-80.80M	USD	Annual
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	$200.00K	USD	Annual
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	$200.00K	USD	Annual
Net income (loss) on foreign currency cash flow hedges reclassified as income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax`	$100.00K	USD	Annual
Net gain (loss) arising during the period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$-12.70M	USD	Annual
Net gain (loss) arising during the period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$-13.40M	USD	Annual
Net gain (loss) arising during the period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$31.60M	USD	Annual
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-4.80M	USD	Annual
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-3.10M	USD	Annual
Amortization of prior service benefit (cost) during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-3.00M	USD	Annual
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-8.70M	USD	Annual
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-8.40M	USD	Annual
Amortization of net gain (loss) during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-8.90M	USD	Annual
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$36.80M	USD	Annual
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$-7.90M	USD	Annual
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$-8.80M	USD	Annual
Income tax effect	`OtherComprehensiveIncomeLossTax`	$1.00M	USD	Annual
Income tax effect	`OtherComprehensiveIncomeLossTax`	$300.00K	USD	Annual
Income tax effect	`OtherComprehensiveIncomeLossTax`	$1.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-9.80M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-8.90M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$36.50M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-132.20M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-130.60M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-90.60M	USD	Annual

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