$KALU
KAISER ALUMINUM CORP Stock $kalu

$kalu Overview Financials Valuation SEC Filings Company Website

2013 Q3 Form 10-Q Financial Statement

#000081159613000043 Filed on July 25, 2013

Income Statement

Concept	2013 Q3	2013 Q2	2012 Q2
Revenue	$319.9M	$328.9M	$345.2M
YoY Change	-4.65%	-4.72%	1.89%
Cost Of Revenue	$259.5M	$261.5M	$284.4M
YoY Change	-3.5%	-8.05%	-2.1%
Gross Profit	$61.90M	$63.20M	$60.70M
YoY Change	-21.55%	4.12%	56.44%
Gross Profit Margin	19.35%	19.22%	17.58%
Selling, General & Admin	$13.40M	$16.10M	$14.40M
YoY Change	-16.25%	11.81%	-20.0%
% of Gross Profit	21.65%	25.47%	23.72%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.900M	$7.000M	$6.600M
YoY Change	2.99%	6.06%	3.13%
% of Gross Profit	11.15%	11.08%	10.87%
Operating Expenses	$20.30M	$23.10M	$21.10M
YoY Change	-10.57%	9.48%	-12.45%
Operating Profit	$41.60M	$40.10M	$39.60M
YoY Change	-25.98%	1.26%	169.39%
Interest Expense	$8.800M	$9.000M	$6.500M
YoY Change	-4.35%	38.46%	47.73%
% of Operating Profit	21.15%	22.44%	16.41%
Other Income/Expense, Net	$2.900M	-$800.0K	$1.100M
YoY Change	625.0%	-172.73%	-132.35%
Pretax Income	$35.70M	$30.30M	$34.20M
YoY Change	-24.68%	-11.4%	395.65%
Income Tax	$10.30M	$11.70M	$13.20M
% Of Pretax Income	28.85%	38.61%	38.6%
Net Earnings	$25.40M	$18.60M	$21.00M
YoY Change	-13.01%	-11.43%	412.2%
Net Earnings / Revenue	7.94%	5.66%	6.08%
Basic Earnings Per Share	$1.37	$0.99	$1.10
Diluted Earnings Per Share	$1.34	$0.98	$1.09
COMMON SHARES
Basic Shares Outstanding	18.55M shares	18.74M shares	19.14M shares
Diluted Shares Outstanding	19.06M shares	18.95M shares	19.20M shares

Balance Sheet

Concept	2013 Q3	2013 Q2	2012 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$340.5M	$329.0M	$317.8M
YoY Change	1.49%	3.52%	431.44%
Cash & Equivalents	$224.6M	$281.7M	$317.8M
Short-Term Investments	$251.0M	$250.9M
Other Short-Term Assets	$67.60M	$70.10M	$74.70M
YoY Change	-7.52%	-6.16%	-5.2%
Inventory	$207.9M	$202.9M	$196.8M
Prepaid Expenses	$3.700M	$4.000M	$6.100M
Receivables	$122.1M	$122.7M	$131.3M
Other Receivables	$14.50M	$11.60M	$1.900M
Total Short-Term Assets	$752.6M	$736.3M	$722.5M
YoY Change	-0.41%	1.91%	64.32%
LONG-TERM ASSETS
Property, Plant & Equipment	$411.7M	$398.3M	$373.0M
YoY Change	9.87%	6.78%	3.5%
Goodwill	$37.20M	$37.20M	$37.20M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$6.300M	$6.000M	$5.500M
YoY Change	10.53%	9.09%	10.0%
Other Assets	$109.1M	$78.50M	$73.80M
YoY Change	29.57%	6.37%	-86.31%
Total Long-Term Assets	$1.039B	$1.003B	$938.9M
YoY Change	10.74%	6.87%	-4.2%
TOTAL ASSETS
Total Short-Term Assets	$752.6M	$736.3M	$722.5M
Total Long-Term Assets	$1.039B	$1.003B	$938.9M
Total Assets	$1.792B	$1.740B	$1.661B
YoY Change	5.77%	4.71%	17.02%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$71.30M	$73.20M	$66.50M
YoY Change	8.03%	10.08%	-32.69%
Accrued Expenses	$68.20M	$58.60M	$50.60M
YoY Change	14.24%	15.81%	24.02%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$200.0K	$300.0K	$0.00
YoY Change			-100.0%
Total Short-Term Liabilities	$151.4M	$147.1M	$162.4M
YoY Change	-3.81%	-9.42%	-1.52%
LONG-TERM LIABILITIES
Long-Term Debt	$386.4M	$384.3M	$376.6M
YoY Change	2.11%	2.04%	147.44%
Other Long-Term Liabilities	$3.400M	$127.0M	$118.7M
YoY Change	-97.35%	6.99%	-16.29%
Total Long-Term Liabilities	$389.8M	$511.3M	$495.3M
YoY Change	-23.07%	3.23%	68.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$151.4M	$147.1M	$162.4M
Total Long-Term Liabilities	$389.8M	$511.3M	$495.3M
Total Liabilities	$696.9M	$662.9M	$677.8M
YoY Change	1.89%	-2.2%	47.7%
SHAREHOLDERS EQUITY
Retained Earnings	$212.2M	$191.8M	$122.6M
YoY Change	44.45%	56.44%
Common Stock	$1.023B	$1.021B	$1.016B
YoY Change	0.53%	0.55%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$116.8M	$112.8M	$72.30M
YoY Change	61.55%	56.02%
Treasury Stock Shares	2.441M shares	2.379M shares	1.725M shares
Shareholders Equity	$1.095B	$1.077B	$983.6M
YoY Change
Total Liabilities & Shareholders Equity	$1.792B	$1.740B	$1.661B
YoY Change	5.77%	4.71%	17.02%

Cashflow Statement

Concept	2013 Q3	2013 Q2	2012 Q2
OPERATING ACTIVITIES
Net Income	$25.40M	$18.60M	$21.00M
YoY Change	-13.01%	-11.43%	412.2%
Depreciation, Depletion And Amortization	$6.900M	$7.000M	$6.600M
YoY Change	2.99%	6.06%	3.13%
Cash From Operating Activities	$41.70M	$42.60M	$39.70M
YoY Change	30.31%	7.3%	132.16%
INVESTING ACTIVITIES
Capital Expenditures	-$21.00M	-$16.70M	-$7.900M
YoY Change	138.64%	111.39%	0.0%
Acquisitions
YoY Change
Other Investing Activities	-$68.60M	$38.60M	-$300.0K
YoY Change	-14.36%	-12966.67%	0.0%
Cash From Investing Activities	-$89.60M	$21.90M	-$8.200M
YoY Change	0.79%	-367.07%	0.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-9.200M	-30.80M	209.0M
YoY Change	73.58%	-114.74%	-4280.0%
NET CHANGE
Cash From Operating Activities	41.70M	42.60M	39.70M
Cash From Investing Activities	-89.60M	21.90M	-8.200M
Cash From Financing Activities	-9.200M	-30.80M	209.0M
Net Change In Cash	-57.10M	33.70M	240.5M
YoY Change	-8.2%	-85.99%	6066.67%
FREE CASH FLOW
Cash From Operating Activities	$41.70M	$42.60M	$39.70M
Capital Expenditures	-$21.00M	-$16.70M	-$7.900M
Free Cash Flow	$62.70M	$59.30M	$47.60M
YoY Change	53.68%	24.58%	90.4%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2013Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	73200000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	62500000	USD
CY2013Q2	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	123500000	USD
CY2012Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	124600000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	123800000	USD
CY2013Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	122700000	USD
CY2013Q2	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	21700000	USD
CY2012Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	3000000	USD
CY2013Q2	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	4600000	USD
CY2013Q2	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	17100000	USD
CY2012Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	18700000	USD
CY2012Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	7400000	USD
CY2013Q2	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	4800000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	111400000	USD
CY2013Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	124700000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26000000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-23500000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1017700000	USD
CY2013Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1021100000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4500000	USD
	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	900000	USD
CY2012Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1100000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4500000	USD
CY2013Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1900000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3600000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	800000	USD
CY2013Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	800000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	4600000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5400000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	900000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	900000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	3800000	USD
CY2013Q2	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	4000000	USD
CY2012Q4	us-gaap	Assets Assets	1752500000	USD
CY2013Q2	us-gaap	Assets Assets	1739700000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	741700000	USD
CY2013Q2	us-gaap	Assets Current AssetsCurrent	736300000	USD
CY2013Q2	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	47300000	USD
CY2012Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	85000000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	0	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	300000	USD
CY2012Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	5600000	USD
CY2013Q2	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	6000000	USD
CY2013Q2	us-gaap	Bank Overdrafts BankOverdrafts	11800000	USD
CY2012Q4	us-gaap	Bank Overdrafts BankOverdrafts	4700000	USD
CY2012Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	124400000	USD
CY2013Q2	us-gaap	Billed Contract Receivables BilledContractReceivables	119100000	USD
CY2012Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	50900000	USD
CY2013Q2	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	51800000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4400000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2100000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	100000	USD
CY2013Q2	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	300000	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	200000	USD
CY2013Q2	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	200000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	200000	USD
CY2013Q2	us-gaap	Cash Cash	78100000	USD
CY2012Q4	us-gaap	Cash Cash	107900000	USD
CY2013Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	281700000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	273400000	USD
CY2012Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	317800000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	49800000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	268000000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	8300000	USD
CY2013Q2	us-gaap	Commercial Paper At Carrying Value CommercialPaperAtCarryingValue	203600000	USD
CY2012Q4	us-gaap	Commercial Paper At Carrying Value CommercialPaperAtCarryingValue	165500000	USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.60
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2013Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2013Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2013Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	21113395	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	21037841	shares
CY2013Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	18734512	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	19313235	shares
CY2013Q2	us-gaap	Common Stock Value CommonStockValue	200000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	200000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	50100000	USD
CY2012Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22500000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	54600000	USD
CY2013Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	19900000	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	20800000	USD
CY2013Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	41100000	USD
CY2012Q4	us-gaap	Convertible Debt ConvertibleDebt	155300000	USD
CY2013Q2	us-gaap	Convertible Debt ConvertibleDebt	159300000	USD
CY2012Q2	us-gaap	Cost Of Goods Sold CostOfGoodsSold	284400000	USD
CY2013Q2	us-gaap	Cost Of Goods Sold CostOfGoodsSold	261500000	USD
	us-gaap	Cost Of Goods Sold CostOfGoodsSold	525100000	USD
	us-gaap	Cost Of Goods Sold CostOfGoodsSold	582500000	USD
CY2012Q2	us-gaap	Costs And Expenses CostsAndExpenses	305600000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	624800000	USD
CY2013Q2	us-gaap	Costs And Expenses CostsAndExpenses	288800000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	576200000	USD
CY2013Q2	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	225000000	USD
CY2012Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	225000000	USD
	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	500000	USD
CY2012Q2	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	100000	USD
CY2013Q2	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	0	USD
	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	400000	USD
CY2013Q2	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	6300000	USD
CY2012Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	5800000	USD
CY2013Q2	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	10300000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	11700000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	28900000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	26100000	USD
CY2012Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	6700000	USD
CY2013Q2	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	3200000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	59500000	USD
CY2013Q2	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	59500000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	102000000	USD
CY2013Q2	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	75800000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	136900000	USD
CY2013Q2	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	142200000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-6000000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-11300000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5000000	USD
CY2012Q2	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1600000	USD
CY2013Q2	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5300000	USD
	us-gaap	Depreciation Depreciation	13100000	USD
	us-gaap	Depreciation Depreciation	12000000	USD
CY2013Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7000000	USD
CY2012Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6600000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	12900000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	14000000	USD
CY2013Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2012Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2013Q2	us-gaap	Derivative Asset Fair Value Net DerivativeAssetFairValueNet	53800000	USD
CY2012Q4	us-gaap	Derivative Asset Fair Value Net DerivativeAssetFairValueNet	58500000	USD
CY2013Q2	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	1200000	USD
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	3000000	USD
CY2012Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	55500000	USD
CY2013Q2	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	52500000	USD
CY2012Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2013Q2	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2013Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2013Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	53800000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	58500000	USD
CY2013Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1400000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1200000	USD
CY2013Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	52400000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	57300000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	66700000	USD
CY2013Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	67300000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	1200000	USD
CY2013Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	1400000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	65500000	USD
CY2013Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	65900000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-5400000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	4200000	USD
CY2012Q2	us-gaap	Derivative Instruments Gain Loss Recognized In Income Net DerivativeInstrumentsGainLossRecognizedInIncomeNet	-7800000	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Income Net DerivativeInstrumentsGainLossRecognizedInIncomeNet	-10500000	USD
CY2013Q2	us-gaap	Derivative Instruments Gain Loss Recognized In Income Net DerivativeInstrumentsGainLossRecognizedInIncomeNet	-1800000	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Income Net DerivativeInstrumentsGainLossRecognizedInIncomeNet	-2500000	USD
CY2013Q2	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	6000000	USD
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.73
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.70
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.48
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.09
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.277
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.383
CY2013Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	33700000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	39300000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	900000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1300000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	900000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1300000	USD
CY2012Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	3100000	USD
CY2013Q2	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	61200000	USD
CY2012Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	63500000	USD
CY2012Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2013Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2012Q4	us-gaap	Derivative Liability Fair Value Net1 DerivativeLiabilityFairValueNet1	66700000	USD
CY2013Q2	us-gaap	Derivative Liability Fair Value Net1 DerivativeLiabilityFairValueNet1	67300000	USD
CY2013Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	6500000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	11600000	USD
CY2012Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	7900000	USD
CY2013Q2	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	0	USD
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.10
CY2013Q2	us-gaap	Fair Value Assumptions Expected Dividend Payments FairValueAssumptionsExpectedDividendPayments	0.24
	us-gaap	Fair Value Assumptions Risk Free Interest Rate FairValueAssumptionsRiskFreeInterestRate	0.0031
	us-gaap	Fair Value Assumptions Weighted Average Volatility Rate FairValueAssumptionsWeightedAverageVolatilityRate	0.173
CY2013Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	34500000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	35400000	USD
	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	-6600000	USD
	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	1400000	USD
CY2012Q2	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	800000	USD
CY2013Q2	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	600000	USD
CY2013Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	300000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	800000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	100000	USD
CY2012Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	100000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-100000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	37200000	USD
CY2013Q2	us-gaap	Goodwill Goodwill	37200000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	77000000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	34200000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	30300000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	72000000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2012Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2013Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2013Q2	us-gaap	Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority	-7700000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29500000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13200000	USD
CY2013Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11700000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19900000	USD
	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	29500000	USD
	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	19900000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	13200000	USD
CY2013Q2	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	11700000	USD
CY2012Q2	us-gaap	Income Taxes Paid IncomeTaxesPaid	300000	USD
CY2013Q2	us-gaap	Income Taxes Paid IncomeTaxesPaid	600000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	1300000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	500000	USD
CY2012Q4	us-gaap	Income Taxes Receivable Noncurrent IncomeTaxesReceivableNoncurrent	2900000	USD
CY2013Q2	us-gaap	Income Taxes Receivable Noncurrent IncomeTaxesReceivableNoncurrent	0	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	33100000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	4500000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	9100000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	4000000	USD
	us-gaap	Increase Decrease In Due To Affiliates Current IncreaseDecreaseInDueToAffiliatesCurrent	3900000	USD
	us-gaap	Increase Decrease In Due To Affiliates Current IncreaseDecreaseInDueToAffiliatesCurrent	-7900000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-16700000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4000000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	7100000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-20200000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	1800000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	1800000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1400000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1700000	USD
	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-700000	USD
	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-7200000	USD
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	94000	shares
CY2013Q2	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	91000	shares
CY2012Q2	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2013Q2	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	112000	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	135000	shares
CY2012Q2	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	63000	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	83000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	1100000	USD
CY2013Q2	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	700000	USD
CY2012Q2	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	500000	USD
	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	1100000	USD
	us-gaap	Interest Expense InterestExpense	10600000	USD
CY2013Q2	us-gaap	Interest Expense InterestExpense	9000000	USD
CY2012Q2	us-gaap	Interest Expense InterestExpense	6500000	USD
	us-gaap	Interest Expense InterestExpense	18300000	USD
	us-gaap	Interest Paid InterestPaid	5100000	USD
	us-gaap	Interest Paid InterestPaid	14000000	USD
CY2013Q2	us-gaap	Interest Payable Current InterestPayableCurrent	3700000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	3700000	USD
CY2012Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	59900000	USD
CY2013Q2	us-gaap	Inventory Finished Goods InventoryFinishedGoods	61700000	USD
CY2012Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	24500000	USD
CY2013Q2	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	11600000	USD
	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	-12900000	USD
	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	-7800000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	186000000	USD
CY2013Q2	us-gaap	Inventory Net InventoryNet	202900000	USD
CY2013Q2	us-gaap	Inventory Raw Materials InventoryRawMaterials	54500000	USD
CY2012Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	53900000	USD
CY2013Q2	us-gaap	Inventory Work In Process InventoryWorkInProcess	69100000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	55500000	USD
CY2013Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	0	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	100000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	200000	USD
CY2012Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	100000	USD
CY2013Q2	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	0	USD
CY2012Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	0	USD
CY2012Q4	us-gaap	Land Land	22600000	USD
CY2013Q2	us-gaap	Land Land	22600000	USD
CY2013Q2	us-gaap	Liabilities Liabilities	662900000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	681700000	USD
CY2013Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1739700000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1752500000	USD
CY2013Q2	us-gaap	Liabilities Current LiabilitiesCurrent	147100000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	161600000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	380300000	USD
CY2013Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	384300000	USD
CY2012Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	400400000	USD
CY2013Q2	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	406500000	USD
CY2013Q2	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	900000	USD
CY2012Q2	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	900000	USD
	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	1700000	USD
	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	1700000	USD
	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Organization and Nature of Operations.</font><font style="font-family:inherit;font-size:10pt;"> Kaiser Aluminum Corporation (together with its subsidiaries, unless the context otherwise requires, the “Company”) specializes in the production of semi-fabricated specialty aluminum products, such as aluminum sheet and plate and extruded and drawn products, used primarily in aerospace/high strength, general engineering, automotive, and other industrial end market applications. The Company has one operating segment, Fabricated Products. See </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Note 12</font><font style="font-family:inherit;font-size:10pt;"> for additional information regarding the Company’s reportable segment and its other business units.</font></div></div>
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-52800000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	203300000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	12200000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	48900000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	74700000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	21000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	52100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	47500000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	18600000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	100000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	90100000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	85800000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	39600000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	40100000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	51800000	USD
CY2013Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	39900000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	300000	USD
CY2013Q2	us-gaap	Other Assets OtherAssets	400000	USD
CY2013Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	78500000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	86000000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax	-400000	USD
	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax	-800000	USD
	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax	-800000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax	-400000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-2100000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-2100000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-1100000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-1000000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-1300000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-1300000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-600000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-700000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	4000000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	2200000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	3500000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	1800000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	800000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	400000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	100000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	400000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	400000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	800000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	400000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2013Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	100000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1300000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1500000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2600000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2500000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	0	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	0	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	-600000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-400000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-100000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	-100000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	600000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	200000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	300000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	100000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	700000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	500000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1000000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1400000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	700000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	700000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	400000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	1500000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	900000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	500000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	400000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	300000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	200000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	300000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	500000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	300000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	300000	USD
CY2013Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	100000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	200000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2012Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	16700000	USD
CY2013Q2	us-gaap	Other Inventory Supplies OtherInventorySupplies	17600000	USD
CY2012Q4	us-gaap	Other Liabilities OtherLiabilities	3400000	USD
CY2013Q2	us-gaap	Other Liabilities OtherLiabilities	3300000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	134500000	USD
CY2013Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	127000000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2500000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-700000	USD
	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	-200000	USD
CY2012Q2	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	200000	USD
CY2013Q2	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	-200000	USD
	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	300000	USD
CY2013Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-800000	USD
CY2012Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1100000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	200000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1800000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-100000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	0	USD
CY2013Q2	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	0	USD
CY2012Q2	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-100000	USD
CY2013Q2	us-gaap	Other Receivables OtherReceivables	11600000	USD
CY2012Q4	us-gaap	Other Receivables OtherReceivables	3400000	USD
	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	0	USD
	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	600000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	39900000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9800000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	11600000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6400000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2100000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2200000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	300000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	98200000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	16900000	USD
CY2013Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	16700000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	26000000	USD
CY2012Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	7900000	USD
CY2013Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2013Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	70100000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	70100000	USD
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	4100000	USD
CY2013Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	4000000	USD
CY2013Q2	us-gaap	Prepaid Taxes PrepaidTaxes	4000000	USD
CY2012Q4	us-gaap	Prepaid Taxes PrepaidTaxes	2100000	USD
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	225000000	USD
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	135700000	USD
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	0	USD
CY2013Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	522000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	494700000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	384300000	USD
CY2013Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	398300000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	4700000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1300000	USD
CY2013Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1300000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	10000000	USD
CY2013Q2	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	9300000	USD
CY2013Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	191800000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	151200000	USD
CY2012Q2	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	345200000	USD
	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	666300000	USD
	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	710600000	USD
CY2013Q2	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	328900000	USD
CY2012Q2	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	345200000	USD
CY2013Q2	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	328900000	USD
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	710600000	USD
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	666300000	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	36221	shares
CY2013Q2	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-3400000	USD
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	200000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	200000	USD
CY2008Q2	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	75000000	USD
CY2012Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	24000000	USD
CY2013Q2	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	23200000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3800000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4700000	USD
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	2722222	shares
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	842347	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	39.90
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	39.90
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	80.01
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	80.01
CY2013Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	20791	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	20791	shares
CY2013Q2	us-gaap	Share Price SharePrice	61.94
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y3M
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y9M
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	45128	shares
CY2013Q2	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	75000000	USD
CY2012	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount	46900000	USD
	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount	81400000	USD
CY2013Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount	79600000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2200000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	1070800000	USD
CY2013Q2	us-gaap	Stockholders Equity StockholdersEquity	1076800000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3100000	USD
CY2013Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	5700000	USD
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	61.95
CY2013Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	63.51
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1724606	shares
CY2013Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	2378883	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	654277	shares
CY2013Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	28600	shares
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	72300000	USD
CY2013Q2	us-gaap	Treasury Stock Value TreasuryStockValue	112800000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	40500000	USD
CY2013Q2	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	4400000	USD
CY2012Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	200000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-5400000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	4200000	USD
CY2012Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	600000	USD
CY2013Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-5100000	USD
CY2013Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8600000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15700000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14600000	USD
CY2013Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	7500000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates in the Preparation of Financial Statements.</font><font style="font-family:inherit;font-size:10pt;"> The preparation of financial statements in accordance with GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses during the reporting period. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of the Company’s consolidated financial statements; accordingly, it is possible that the actual results could differ from these estimates and assumptions, which could have a material effect on the reported amounts of the Company’s consolidated financial position and results of operations.</font></div></div>
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19200000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19256000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19170000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18945000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19027000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18742000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19087000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19137000	shares
CY2012Q4	kalu	Accrued Annual Veba Contribution AccruedAnnualVebaContribution	20000000	USD
CY2013Q2	kalu	Accrued Annual Veba Contribution AccruedAnnualVebaContribution	0	USD
CY2012Q4	kalu	Active Property Plant And Equipment Net ActivePropertyPlantAndEquipmentNet	383300000	USD
CY2013Q2	kalu	Active Property Plant And Equipment Net ActivePropertyPlantAndEquipmentNet	397300000	USD
	kalu	Amortization Of Option Premiums AmortizationOfOptionPremiums	0	USD
	kalu	Amortization Of Option Premiums AmortizationOfOptionPremiums	200000	USD
CY2013Q2	kalu	Call Option Fair Value Assumptions Credit Spread CallOptionFairValueAssumptionsCreditSpread	291	basispoints
CY2013Q2	kalu	Constant Maturity Treasury Rate Specified Year One ConstantMaturityTreasuryRateSpecifiedYearOne	P1Y9M
	kalu	Defined Benefit Plan Net Periodic Benefit Cost And Charges Relating To Other Benefit Plans DefinedBenefitPlanNetPeriodicBenefitCostAndChargesRelatingToOtherBenefitPlans	-3900000	USD
CY2013Q2	kalu	Defined Benefit Plan Net Periodic Benefit Cost And Charges Relating To Other Benefit Plans DefinedBenefitPlanNetPeriodicBenefitCostAndChargesRelatingToOtherBenefitPlans	-3500000	USD
	kalu	Defined Benefit Plan Net Periodic Benefit Cost And Charges Relating To Other Benefit Plans DefinedBenefitPlanNetPeriodicBenefitCostAndChargesRelatingToOtherBenefitPlans	1200000	USD
CY2012Q2	kalu	Defined Benefit Plan Net Periodic Benefit Cost And Charges Relating To Other Benefit Plans DefinedBenefitPlanNetPeriodicBenefitCostAndChargesRelatingToOtherBenefitPlans	-400000	USD
CY2012Q2	kalu	Domestic Tax DomesticTax	12400000	USD
	kalu	Domestic Tax DomesticTax	26500000	USD
CY2013Q2	kalu	Domestic Tax DomesticTax	11100000	USD
	kalu	Domestic Tax DomesticTax	28100000	USD
	kalu	Effective Income Tax Rate Reconciliation Change In Unrecognized Tax Benefits Including Interest And Penalty EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefitsIncludingInterestAndPenalty	0.005
	kalu	Effective Income Tax Rate Reconciliation Change In Unrecognized Tax Benefits Including Interest And Penalty EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefitsIncludingInterestAndPenalty	-0.10
	kalu	Eva Measurement Period EvaMeasurementPeriod	P1Y
CY2013Q2	kalu	Expected Period Related To Remediation Expenditures For Environmental Contingencies ExpectedPeriodRelatedToRemediationExpendituresForEnvironmentalContingencies	P30Y
CY2013Q2	kalu	Expected Period Which Unrecognized Tax Benefits Will Be Reduced ExpectedPeriodWhichUnrecognizedTaxBenefitsWillBeReduced	12 months
	kalu	Fabricated Products Shipments Containing Fixed Price Terms FabricatedProductsShipmentsContainingFixedPriceTerms	91.5	mmlbs
	kalu	Fabricated Products Shipments Containing Fixed Price Terms FabricatedProductsShipmentsContainingFixedPriceTerms	58.2	mmlbs
CY2013Q2	kalu	Idled Equipment IdledEquipment	1000000	USD
CY2012Q4	kalu	Idled Equipment IdledEquipment	1000000	USD
	kalu	Increasedecreaseinunrecognizedtaxbenefitsincludinginterestandpenalties Increasedecreaseinunrecognizedtaxbenefitsincludinginterestandpenalties	400000	USD
CY2013Q2	kalu	Potential Additional Environmental Costs PotentialAdditionalEnvironmentalCosts	19100000	USD
	kalu	Reclassification Relating To Dividends On Unvested Equity Awards ReclassificationRelatingToDividendsOnUnvestedEquityAwards	100000	USD
	kalu	Increasedecreaseinunrecognizedtaxbenefitsincludinginterestandpenalties Increasedecreaseinunrecognizedtaxbenefitsincludinginterestandpenalties	-7200000	USD
	kalu	Intercompany Loan IntercompanyLoan	0	USD
	kalu	Intercompany Loan IntercompanyLoan	0	USD
CY2013Q2	kalu	Intercompany Payable Current IntercompanyPayableCurrent	0	USD
CY2012Q4	kalu	Intercompany Payable Current IntercompanyPayableCurrent	0	USD
CY2013Q2	kalu	Intercompany Payable Noncurrent IntercompanyPayableNoncurrent	0	USD
CY2012Q4	kalu	Intercompany Payable Noncurrent IntercompanyPayableNoncurrent	0	USD
CY2013Q2	kalu	Intercompany Receivables Current IntercompanyReceivablesCurrent	0	USD
CY2012Q4	kalu	Intercompany Receivables Current IntercompanyReceivablesCurrent	0	USD
CY2013Q2	kalu	Intercompany Receivables Noncurrent IntercompanyReceivablesNoncurrent	0	USD
CY2012Q4	kalu	Intercompany Receivables Noncurrent IntercompanyReceivablesNoncurrent	0	USD
CY2012Q4	kalu	Net Asset In Respect Of Vebas NetAssetInRespectOfVebas	365900000	USD
CY2013Q2	kalu	Net Asset In Respect Of Vebas NetAssetInRespectOfVebas	379100000	USD
CY2012Q4	kalu	Net Liability In Respect Of Veba NetLiabilityInRespectOfVeba	5300000	USD
CY2013Q2	kalu	Net Liability In Respect Of Veba NetLiabilityInRespectOfVeba	4500000	USD
CY2013Q2	kalu	Option Premiums Paid Current OptionPremiumsPaidCurrent	100000	USD
CY2012Q4	kalu	Option Premiums Paid Current OptionPremiumsPaidCurrent	100000	USD
CY2013Q2	kalu	Option Premiums Received OptionPremiumsReceived	100000	USD
CY2012Q4	kalu	Option Premiums Received OptionPremiumsReceived	100000	USD
	kalu	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Reclassification Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansReclassificationAdjustmentBeforeTax	2800000	USD
CY2012Q2	kalu	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Reclassification Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansReclassificationAdjustmentBeforeTax	1800000	USD
	kalu	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Reclassification Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansReclassificationAdjustmentBeforeTax	3600000	USD
CY2013Q2	kalu	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Reclassification Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansReclassificationAdjustmentBeforeTax	1400000	USD
	kalu	Other Comprehensive Income Loss Reclassification Adjustment Tax OtherComprehensiveIncomeLossReclassificationAdjustmentTax	1400000	USD
CY2013Q2	kalu	Other Comprehensive Income Loss Reclassification Adjustment Tax OtherComprehensiveIncomeLossReclassificationAdjustmentTax	400000	USD
CY2012Q2	kalu	Other Comprehensive Income Loss Reclassification Adjustment Tax OtherComprehensiveIncomeLossReclassificationAdjustmentTax	700000	USD
	kalu	Other Comprehensive Income Loss Reclassification Adjustment Tax OtherComprehensiveIncomeLossReclassificationAdjustmentTax	800000	USD
	kalu	Other Operating Income Loss OtherOperatingIncomeLoss	100000	USD
CY2012Q2	kalu	Other Operating Income Loss OtherOperatingIncomeLoss	100000	USD
CY2013Q2	kalu	Ownership Interest In Subsidiaries OwnershipInterestInSubsidiaries	1.00
CY2013Q2	kalu	Periodforpossibleimpairment Periodforpossibleimpairment	P12M
	kalu	Selling Administrative Research And Development And General Expenses SellingAdministrativeResearchAndDevelopmentAndGeneralExpenses	32200000	USD
	kalu	Selling Administrative Research And Development And General Expenses SellingAdministrativeResearchAndDevelopmentAndGeneralExpenses	32300000	USD
CY2013Q2	kalu	Selling Administrative Research And Development And General Expenses SellingAdministrativeResearchAndDevelopmentAndGeneralExpenses	16100000	USD
CY2012Q2	kalu	Selling Administrative Research And Development And General Expenses SellingAdministrativeResearchAndDevelopmentAndGeneralExpenses	14400000	USD
	kalu	Short Term Incentive Compensation Expense ShortTermIncentiveCompensationExpense	8900000	USD
CY2012Q2	kalu	Short Term Incentive Compensation Expense ShortTermIncentiveCompensationExpense	3200000	USD
CY2013Q2	kalu	Short Term Incentive Compensation Expense ShortTermIncentiveCompensationExpense	4800000	USD
	kalu	Short Term Incentive Compensation Expense ShortTermIncentiveCompensationExpense	7100000	USD
CY2013Q2	kalu	Time Period Within Which Companys Recorded Estimate Of Its Obligation May Change TimePeriodWithinWhichCompanysRecordedEstimateOfItsObligationMayChange	P12M
	kalu	Unrealized Gain Loss On Financial Derivatives UnrealizedGainLossOnFinancialDerivatives	-500000	USD
CY2012Q2	kalu	Unrealized Gain Loss On Financial Derivatives UnrealizedGainLossOnFinancialDerivatives	700000	USD
CY2013Q2	kalu	Unrealized Gain Loss On Financial Derivatives UnrealizedGainLossOnFinancialDerivatives	-900000	USD
	kalu	Unrealized Gain Loss On Financial Derivatives UnrealizedGainLossOnFinancialDerivatives	1200000	USD
	kalu	Unrealized Gains Losses On Operational Hedging Activities UnrealizedGainsLossesOnOperationalHedgingActivities	-4900000	USD
CY2012Q2	kalu	Unrealized Gains Losses On Operational Hedging Activities UnrealizedGainsLossesOnOperationalHedgingActivities	-100000	USD
CY2013Q2	kalu	Unrealized Gains Losses On Operational Hedging Activities UnrealizedGainsLossesOnOperationalHedgingActivities	-4200000	USD
	kalu	Unrealized Gains Losses On Operational Hedging Activities UnrealizedGainsLossesOnOperationalHedgingActivities	3000000	USD
CY2012Q4	kalu	Unrecognized Tax Benefits And Income Tax Penalties And Interest Accrued Noncurrent UnrecognizedTaxBenefitsAndIncomeTaxPenaltiesAndInterestAccruedNoncurrent	15100000	USD
CY2013Q2	kalu	Unrecognized Tax Benefits And Income Tax Penalties And Interest Accrued Noncurrent UnrecognizedTaxBenefitsAndIncomeTaxPenaltiesAndInterestAccruedNoncurrent	11700000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
	dei	Document Period End Date DocumentPeriodEndDate	2013-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000811596
CY2013Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	18706587	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	Kaiser Aluminum Corp

Files In Submission

Name	View Source	Status
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0000811596-13-000043-index.html	Edgar Link	pending
0000811596-13-000043.txt	Edgar Link	pending
0000811596-13-000043-xbrl.zip	Edgar Link	pending
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kalu-20130630.xml	Edgar Link	completed
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$KALU
KAISER ALUMINUM CORP Stock $kalu

2013 Q3 Form 10-Q Financial Statement

#000081159613000043 Filed on July 25, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KALU KAISER ALUMINUM CORP Stock $kalu

2013 Q3 Form 10-Q Financial Statement

#000081159613000043 Filed on July 25, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KALU
KAISER ALUMINUM CORP Stock $kalu