10-K Filing

CENTURY ALUMINUM CO CIK: 949157 FY 2015

Filing Information

Form Type	10-K
Accession Number	`0000949157-16-000164`
Period End Date	20151231
Filing Date	20160307
Fiscal Year	2015
Fiscal Period	FY
XBRL Instance	cenx-20151231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 73 Income Statement 118 Cash Flow Statement 148 Stockholders Equity 34 Comprehensive Income 41

Balance Sheet 73 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$163.24M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$84.09M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$115.39M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$183.98M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$801.00K	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$791.00K	USD	Point-in-time
Accounts receivable net	`AccountsReceivableNetCurrent`	$9.47M	USD	Point-in-time
Accounts receivable net	`AccountsReceivableNetCurrent`	$77.67M	USD	Point-in-time
Due from affiliates	`DueFromRelatedPartiesCurrent`	$31.50M	USD	Point-in-time
Due from affiliates	`DueFromRelatedPartiesCurrent`	$17.42M	USD	Point-in-time
Inventories	`InventoryNet`	$283.48M	USD	Point-in-time
Inventories	`InventoryNet`	$231.87M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$42.41M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$29.77M	USD	Point-in-time
Deferred taxes	`DeferredTaxAssetsNetCurrent`	-	USD	Point-in-time
Deferred taxes	`DeferredTaxAssetsNetCurrent`	$14.28M	USD	Point-in-time
Assets held for sale	`AssetsHeldForSaleNotPartOfDisposalGroupCurrent`	-	USD	Point-in-time
Assets held for sale	`AssetsHeldForSaleNotPartOfDisposalGroupCurrent`	$30.70M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$448.06M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$600.74M	USD	Point-in-time
Property, plant and equipment net	`PropertyPlantAndEquipmentNet`	$1.31B	USD	Point-in-time
Property, plant and equipment net	`PropertyPlantAndEquipmentNet`	$1.23B	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$72.16M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$118.77M	USD	Point-in-time
TOTAL	`Assets`	$2.03B	USD	Point-in-time
TOTAL	`Assets`	$1.75B	USD	Point-in-time
TOTAL	`Assets`	$1.81B	USD	Point-in-time
Accounts payable, trade	`AccountsPayableTradeCurrent`	$90.49M	USD	Point-in-time
Accounts payable, trade	`AccountsPayableTradeCurrent`	$151.44M	USD	Point-in-time
Due to affiliates	`DueToRelatedPartiesCurrent`	$22.26M	USD	Point-in-time
Due to affiliates	`DueToRelatedPartiesCurrent`	$10.04M	USD	Point-in-time
Accrued and other current liabilities	`AccruedLiabilitiesCurrent`	$48.82M	USD	Point-in-time
Accrued and other current liabilities	`AccruedLiabilitiesCurrent`	$103.81M	USD	Point-in-time
Accrued employee benefits costs	`PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities`	$10.16M	USD	Point-in-time
Accrued employee benefits costs	`PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities`	$10.15M	USD	Point-in-time
Industrial revenue bonds	`IndustrialRevenueBonds`	$7.82M	USD	Point-in-time
Industrial revenue bonds	`IndustrialRevenueBonds`	$7.82M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$295.49M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$167.32M	USD	Point-in-time
Senior notes payable	`SeniorLongTermNotes`	$247.28M	USD	Point-in-time
Senior notes payable	`SeniorLongTermNotes`	$246.89M	USD	Point-in-time
Accrued pension benefits costs less current portion	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$59.91M	USD	Point-in-time
Accrued pension benefits costs less current portion	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$44.00M	USD	Point-in-time
Accrued postretirement benefits costs less current portion	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$126.00M	USD	Point-in-time
Accrued postretirement benefits costs less current portion	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$152.89M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$53.01M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$53.27M	USD	Point-in-time
Deferred taxes	`DeferredTaxLiabilitiesNoncurrent`	$96.99M	USD	Point-in-time
Deferred taxes	`DeferredTaxLiabilitiesNoncurrent`	$111.49M	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$567.28M	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$624.45M	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES	`CommitmentsAndContingencies`	-	USD	Point-in-time
Series A Preferred stock	`PreferredStockValue`	$1.00K	USD	Point-in-time
Series A Preferred stock	`PreferredStockValue`	$1.00K	USD	Point-in-time
Common stock	`CommonStockValue`	$939.00K	USD	Point-in-time
Common stock	`CommonStockValue`	$942.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.51B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.51B	USD	Point-in-time
Treasury stock, at cost	`TreasuryStockValue`	$86.28M	USD	Point-in-time
Treasury stock, at cost	`TreasuryStockValue`	$49.92M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-91.83M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-117.68M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-112.65M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-151.19M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.30B	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.24B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$1.02B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$1.00B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$1.11B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$982.64M	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$1.75B	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$2.03B	USD	Point-in-time

Income Statement 118 line items

Line Item	Tag	Value	Unit	Period
Related parties	`RevenueFromRelatedParties`	$1.26B	USD	Annual
Related parties	`RevenueFromRelatedParties`	$511.05M	USD	Annual
Related parties	`RevenueFromRelatedParties`	$1.87B	USD	Annual
Third-party customers	`SalesRevenueGoodsNet`	$668.94M	USD	Annual
Third-party customers	`SalesRevenueGoodsNet`	$943.26M	USD	Annual
Third-party customers	`SalesRevenueGoodsNet`	$82.15M	USD	Annual
Sales Revenue net	`SalesRevenueNet`	$458.32M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$454.54M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$1.95B	USD	Annual
Sales Revenue net	`SalesRevenueNet`	$551.24M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$383.92M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$1.45B	USD	Annual
Sales Revenue net	`SalesRevenueNet`	$587.91M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$1.93B	USD	Annual
Sales Revenue net	`SalesRevenueNet`	$523.49M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$500.63M	USD	1 Quarter
Sales Revenue net	`SalesRevenueNet`	$420.85M	USD	1 Quarter
Cost of goods sold	`CostOfGoodsSold`	$1.41B	USD	Annual
Cost of goods sold	`CostOfGoodsSold`	$1.91B	USD	Annual
Cost of goods sold	`CostOfGoodsSold`	$1.73B	USD	Annual
Gross profit	`GrossProfit`	$39.52M	USD	Annual
Gross profit	`GrossProfit`	$38.50M	USD	1 Quarter
Gross profit	`GrossProfit`	$201.80M	USD	Annual
Gross profit	`GrossProfit`	$89.34M	USD	1 Quarter
Gross profit	`GrossProfit`	$-18.70M	USD	1 Quarter
Gross profit	`GrossProfit`	$94.09M	USD	1 Quarter
Gross profit	`GrossProfit`	$41.31M	USD	Annual
Gross profit	`GrossProfit`	$-1.76M	USD	1 Quarter
Gross profit	`GrossProfit`	$8.34M	USD	1 Quarter
Gross profit	`GrossProfit`	$-42.42M	USD	1 Quarter
Gross profit	`GrossProfit`	$75.71M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$42.12M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$49.20M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$67.48M	USD	Annual
Ravenswood impairment	`AssetImpairmentCharges`	-	USD	Annual
Ravenswood impairment	`AssetImpairmentCharges`	$30.85M	USD	Annual
Ravenswood impairment	`AssetImpairmentCharges`	-	USD	Annual
Other operating expense net	`OtherOperatingIncomeExpenseNet`	$-12.48M	USD	Annual
Other operating expense net	`OtherOperatingIncomeExpenseNet`	$-8.60M	USD	Annual
Other operating expense net	`OtherOperatingIncomeExpenseNet`	$-7.44M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$140.12M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$-36.56M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$-39.09M	USD	Annual
Interest expense	`InterestExpense`	$23.09M	USD	Annual
Interest expense	`InterestExpense`	$22.02M	USD	Annual
Interest expense	`InterestExpense`	$21.95M	USD	Annual
Interest income	`InterestIncomeOther`	$728.00K	USD	Annual
Interest income	`InterestIncomeOther`	$339.00K	USD	Annual
Interest income	`InterestIncomeOther`	$301.00K	USD	Annual
Net gain on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$179.00K	USD	Annual
Net gain on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$1.60M	USD	Annual
Net gain on forward and derivative contracts	`GainLossOnDerivativeInstrumentsNetPretax`	$16.60M	USD	Annual
Gain on bargain purchase	`BusinessCombinationBargainPurchaseGainRecognizedAmount`	$5.25M	USD	Annual
Gain on bargain purchase	`BusinessCombinationBargainPurchaseGainRecognizedAmount`	-	USD	Annual
Gain on bargain purchase	`BusinessCombinationBargainPurchaseGainRecognizedAmount`	-	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$7.94M	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$7.94M	USD	1 Quarter
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	-	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$18.34M	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$6.53M	USD	1 Quarter
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	$15.96M	USD	Annual
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	$15.96M	USD	1 Quarter
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	-	USD	Annual
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	-	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-3.27M	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Other income (expense) net	`OtherNonoperatingIncomeExpense`	$-356.00K	USD	Annual
Other income (expense) net	`OtherNonoperatingIncomeExpense`	$991.00K	USD	Annual
Other income (expense) net	`OtherNonoperatingIncomeExpense`	$496.00K	USD	Annual
Income (loss) before income taxes and equity in earnings of joint ventures	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-41.12M	USD	Annual
Income (loss) before income taxes and equity in earnings of joint ventures	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$143.48M	USD	Annual
Income (loss) before income taxes and equity in earnings of joint ventures	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-39.84M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$9.28M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$3.13M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$18.31M	USD	Annual
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-50.40M	USD	Annual
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$-42.98M	USD	Annual
Income (loss) before equity in earnings of joint ventures	`IncomeLossAfterIncomeTaxesBeforeIncomeLossFromEquityMethodInvestments`	$125.17M	USD	Annual
BHH impairment	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$11.58M	USD	Annual
BHH impairment	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
BHH impairment	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Equity in earnings of joint ventures	`IncomeLossFromEquityMethodInvestments`	$2.67M	USD	Annual
Equity in earnings of joint ventures	`IncomeLossFromEquityMethodInvestments`	$1.30M	USD	Annual
Equity in earnings of joint ventures	`IncomeLossFromEquityMethodInvestments`	$2.66M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-43.08M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-40.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-59.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$75.83M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-56.11M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$73.78M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-20.10M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$20.34M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$50.41M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-33.90M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$126.47M	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.78	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.65	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.21	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.45	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.50	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.31	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.39	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.76	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.52	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.68	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$-0.23	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.23	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.39	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.45	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.68	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.52	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.78	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.65	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.21	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.30	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.50	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.76	USD	1 Quarter

Cash Flow Statement 148 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$-43.08M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-40.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-59.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$75.83M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-56.11M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$73.78M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-20.10M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$20.34M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$50.41M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-33.90M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$126.47M	USD	Annual
Gain on bargain purchase	`BusinessCombinationBargainPurchaseGainRecognizedAmount`	$5.25M	USD	Annual
Gain on bargain purchase	`BusinessCombinationBargainPurchaseGainRecognizedAmount`	-	USD	Annual
Gain on bargain purchase	`BusinessCombinationBargainPurchaseGainRecognizedAmount`	-	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$7.94M	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$7.94M	USD	1 Quarter
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	-	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$18.34M	USD	Annual
Unrealized gain on fair value of contingent consideration	`BusinessCombinationSeparatelyRecognizedTransactionsRevenuesAndGainsRecognized`	$6.53M	USD	1 Quarter
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	$15.96M	USD	Annual
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	$15.96M	USD	1 Quarter
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	-	USD	Annual
Gain on remeasurement of equity investment	`BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain`	-	USD	Annual
Unrealized gain on E.ON contingent obligation	`UnrealizedGainLossOnEOnObligation`	$16.78M	USD	Annual
Unrealized gain on E.ON contingent obligation	`UnrealizedGainLossOnEOnObligation`	$1.41M	USD	Annual
Unrealized gain on E.ON contingent obligation	`UnrealizedGainLossOnEOnObligation`	$1.41M	USD	Annual
Lower of cost or market inventory adjustment	`InventoryWriteDown`	$-1.25M	USD	Annual
Lower of cost or market inventory adjustment	`InventoryWriteDown`	$1.25M	USD	Annual
Lower of cost or market inventory adjustment	`InventoryWriteDown`	$5.32M	USD	1 Quarter
Lower of cost or market inventory adjustment	`InventoryWriteDown`	$7.54M	USD	Annual
Lower of cost or market inventory adjustment	`InventoryWriteDown`	$23.47M	USD	1 Quarter
Depreciation	`DepreciationDepletionAndAmortization`	$80.12M	USD	Annual
Depreciation	`DepreciationDepletionAndAmortization`	$66.57M	USD	Annual
Depreciation	`DepreciationDepletionAndAmortization`	$70.83M	USD	Annual
Ravenswood impairment	`AssetImpairmentCharges`	-	USD	Annual
Ravenswood impairment	`AssetImpairmentCharges`	$30.85M	USD	Annual
Ravenswood impairment	`AssetImpairmentCharges`	-	USD	Annual
BHH impairment	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$11.58M	USD	Annual
BHH impairment	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
BHH impairment	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Sebree power contract amortization	`AmortizationofAssumedPowerContract`	$5.53M	USD	Annual
Sebree power contract amortization	`AmortizationofAssumedPowerContract`	$5.53M	USD	1 Quarter
Sebree power contract amortization	`AmortizationofAssumedPowerContract`	-	USD	Annual
Sebree power contract amortization	`AmortizationofAssumedPowerContract`	$31.03M	USD	Annual
Pension and other postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$1.74M	USD	Annual
Pension and other postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$-4.99M	USD	Annual
Pension and other postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$6.94M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$1.49M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-2.63M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$178.00K	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.08M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.84M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.33M	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-3.27M	USD	Annual
Loss on early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Equity in earnings of joint ventures, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$-425.00K	USD	Annual
Equity in earnings of joint ventures, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$-871.00K	USD	Annual
Equity in earnings of joint ventures, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$806.00K	USD	Annual
Accounts receivable net	`IncreaseDecreaseInAccountsReceivable`	$-68.19M	USD	Annual
Accounts receivable net	`IncreaseDecreaseInAccountsReceivable`	$6.00M	USD	Annual
Accounts receivable net	`IncreaseDecreaseInAccountsReceivable`	$8.71M	USD	Annual
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$-12.08M	USD	Annual
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$-14.09M	USD	Annual
Due from affiliates	`IncreaseDecreaseInDueFromRelatedPartiesCurrent`	$5.72M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$16.51M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-44.90M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$21.74M	USD	Annual
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$144.00K	USD	Annual
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-5.32M	USD	Annual
Prepaid and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-3.39M	USD	Annual
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$-60.58M	USD	Annual
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$25.22M	USD	Annual
Accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$11.80M	USD	Annual
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$3.06M	USD	Annual
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$13.85M	USD	Annual
Due to affiliates	`IncreaseDecreaseInDueToRelatedPartiesCurrent`	$-12.22M	USD	Annual
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-31.54M	USD	Annual
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$18.07M	USD	Annual
Accrued and other current liabilities	`IncreaseDecreaseInAccruedLiabilities`	$5.83M	USD	Annual
Pension contribution - Mt. Holly	`PensionContributions`	-	USD	Annual
Pension contribution - Mt. Holly	`PensionContributions`	-	USD	Annual
Pension contribution - Mt. Holly	`PensionContributions`	$34.59M	USD	Annual
Other net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-23.05M	USD	Annual
Other net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-7.96M	USD	Annual
Other net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$3.13M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$31.87M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$19.72M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$207.68M	USD	Annual
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$55.13M	USD	Annual
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$54.70M	USD	Annual
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$68.08M	USD	Annual
Purchase of Sebree smelter	`PaymentsToAcquireBusinessesGross`	-	USD	Annual
Purchase of Sebree smelter	`PaymentsToAcquireBusinessesGross`	$48.06M	USD	Annual
Purchase of Sebree smelter	`PaymentsToAcquireBusinessesGross`	$1.04M	USD	Annual
Investments in and advances to joint ventures	`PaymentsToAcquireInterestInJointVenture`	-	USD	Annual
Investments in and advances to joint ventures	`PaymentsToAcquireInterestInJointVenture`	$125.00K	USD	Annual
Investments in and advances to joint ventures	`PaymentsToAcquireInterestInJointVenture`	-	USD	Annual
Purchase of remaining interest in Mt. Holly smelter	`PaymentsforProceedsfromAcquisitionofRemainingInterestinBusinessGross`	$-11.31M	USD	Annual
Purchase of remaining interest in Mt. Holly smelter	`PaymentsforProceedsfromAcquisitionofRemainingInterestinBusinessGross`	-	USD	Annual
Purchase of remaining interest in Mt. Holly smelter	`PaymentsforProceedsfromAcquisitionofRemainingInterestinBusinessGross`	$65.10M	USD	Annual
Proceeds from sale of property, plant and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$525.00K	USD	Annual
Proceeds from sale of property, plant and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$46.00K	USD	Annual
Proceeds from sale of property, plant and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$14.00K	USD	Annual
Restricted and other cash deposits	`IncreaseDecreaseInRestrictedCash`	$-10.00K	USD	Annual
Restricted and other cash deposits	`IncreaseDecreaseInRestrictedCash`	$1.44M	USD	Annual
Restricted and other cash deposits	`IncreaseDecreaseInRestrictedCash`	$-896.00K	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-43.36M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-120.33M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-117.17M	USD	Annual
Repayment of debt	`RepaymentsOfDebt`	$249.60M	USD	Annual
Repayment of debt	`RepaymentsOfDebt`	-	USD	Annual
Repayment of debt	`RepaymentsOfDebt`	$2.60M	USD	Annual
Proceeds from issuance of debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of debt	`ProceedsFromIssuanceOfLongTermDebt`	$246.33M	USD	Annual
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$22.73M	USD	Annual
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$1.74M	USD	Annual
Borrowings under revolving credit facilities	`ProceedsFromLinesOfCredit`	$92.42M	USD	Annual
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$1.74M	USD	Annual
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$16.73M	USD	Annual
Repayments under revolving credit facilities	`RepaymentsOfLinesOfCredit`	$98.42M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$3.99M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt retirement costs	`PaymentsOfDebtExtinguishmentCosts`	$1.21M	USD	Annual
Debt retirement costs	`PaymentsOfDebtExtinguishmentCosts`	-	USD	Annual
Debt retirement costs	`PaymentsOfDebtExtinguishmentCosts`	-	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$36.35M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$403.00K	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$44.00K	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-8.20M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-36.35M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.43M	USD	Annual
CHANGE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-99.89M	USD	Annual
CHANGE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-47.85M	USD	Annual
CHANGE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$79.15M	USD	Annual
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$163.24M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$84.09M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$115.39M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$183.98M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$163.24M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$84.09M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$115.39M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$183.98M	USD	Point-in-time

Stockholders Equity 34 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquity`	$1.02B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.00B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.11B	USD	Point-in-time
Balance	`StockholdersEquity`	$982.64M	USD	Point-in-time
Net income (loss)	`NetIncomeLoss`	$-43.08M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-40.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-59.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$75.83M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-56.11M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$73.78M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-20.10M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$20.34M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$50.41M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-33.90M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$126.47M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-38.50M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$5.03M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$59.36M	USD	Annual
Elimination of equity in investee resulting from acquisition	`EliminationOfEquityInInvestee`	$12.65M	USD	Annual
Issuance of common stock compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	$44.00K	USD	Annual
Issuance of common stock compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.53M	USD	Annual
Issuance of common stock compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	$304.00K	USD	Annual
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$86.28M	USD	20 Qtrs
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$36.35M	USD	Annual
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.08M	USD	Annual
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.84M	USD	Annual
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.39M	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
Balance	`StockholdersEquity`	$1.02B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.00B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.11B	USD	Point-in-time
Balance	`StockholdersEquity`	$982.64M	USD	Point-in-time

Comprehensive Income 41 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$-43.08M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-40.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$-59.31M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$75.83M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-56.11M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$73.78M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-20.10M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$20.34M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$50.41M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-33.90M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$126.47M	USD	Annual
Net gain on foreign currency cash flow hedges reclassified as income	`ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet`	$-186.00K	USD	Annual
Net gain on foreign currency cash flow hedges reclassified as income	`ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet`	$-186.00K	USD	Annual
Net gain on foreign currency cash flow hedges reclassified as income	`ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet`	$-186.00K	USD	Annual
Net gain (loss) arising during the period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$56.80M	USD	Annual
Net gain (loss) arising during the period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$-41.99M	USD	Annual
Net gain (loss) arising during the period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$5.55M	USD	Annual
Prior service benefit (cost) arising during the period	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax`	$1.30M	USD	Annual
Prior service benefit (cost) arising during the period	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax`	$-1.76M	USD	Annual
Prior service benefit (cost) arising during the period	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax`	-	USD	Annual
Amortization of prior service benefit during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-3.50M	USD	Annual
Amortization of prior service benefit during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-3.92M	USD	Annual
Amortization of prior service benefit during the period	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax`	$-8.35M	USD	Annual
Amortization of actuarial net loss during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-10.31M	USD	Annual
Amortization of actuarial net loss during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-7.79M	USD	Annual
Amortization of actuarial net loss during the period	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax`	$-8.17M	USD	Annual
Change in equity in investee other comprehensive income	`ComprehensiveIncomeLossChangeInInvesteeBeforeTax`	$61.00K	USD	Annual
Change in equity in investee other comprehensive income	`ComprehensiveIncomeLossChangeInInvesteeBeforeTax`	-	USD	Annual
Change in equity in investee other comprehensive income	`ComprehensiveIncomeLossChangeInInvesteeBeforeTax`	-	USD	Annual
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$-36.67M	USD	Annual
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$60.92M	USD	Annual
Other comprehensive income (loss) before income tax effect	`OtherComprehensiveIncomeLossBeforeTax`	$6.57M	USD	Annual
Income tax effect	`OtherComprehensiveIncomeLossTax`	$1.83M	USD	Annual
Income tax effect	`OtherComprehensiveIncomeLossTax`	$1.54M	USD	Annual
Income tax effect	`OtherComprehensiveIncomeLossTax`	$1.56M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-38.50M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$5.03M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$59.36M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$87.97M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-54.28M	USD	Annual
Total comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$19.05M	USD	Annual

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