$KALU
KAISER ALUMINUM CORP Stock $kalu

$kalu Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000156459021051812 Filed on October 26, 2021

Income Statement

Concept	2021 Q3	2020 Q4	2020 Q3
Revenue	$750.6M	$272.0M	$255.7M
YoY Change	193.55%	-26.23%	-31.8%
Cost Of Revenue	$677.8M	$221.8M	$208.4M
YoY Change	225.24%	-25.57%	-30.21%
Gross Profit	$72.80M	$50.20M	$47.30M
YoY Change	53.91%	-29.0%	-38.01%
Gross Profit Margin	9.7%	18.46%	18.5%
Selling, General & Admin	$27.10M	$23.30M	$21.30M
YoY Change	27.23%	4.48%	-8.58%
% of Gross Profit	37.23%	46.41%	45.03%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$24.90M	$13.10M	$12.90M
YoY Change	93.02%	2.34%	4.88%
% of Gross Profit	34.2%	26.1%	27.27%
Operating Expenses	$52.00M	$36.60M	$34.50M
YoY Change	50.72%	1.95%	-3.09%
Operating Profit	$20.80M	$13.60M	$12.30M
YoY Change	69.11%	41.67%	-69.78%
Interest Expense	-$12.40M	-$11.90M	$12.10M
YoY Change	-202.48%	108.77%	108.62%
% of Operating Profit	-59.62%	-87.5%	98.37%
Other Income/Expense, Net	-$1.200M	-$900.0K	-$500.0K
YoY Change	140.0%	-43.75%	-37.5%
Pretax Income	$6.100M	$5.700M	-$300.0K
YoY Change	-2133.33%	-131.67%	-100.88%
Income Tax	$8.400M	-$200.0K	-$700.0K
% Of Pretax Income	137.7%	-3.51%
Net Earnings	-$2.300M	$5.900M	$400.0K
YoY Change	-675.0%	-155.66%	-98.43%
Net Earnings / Revenue	-0.31%	2.17%	0.16%
Basic Earnings Per Share	-$0.14		$0.02
Diluted Earnings Per Share	-$0.14	$371.1K	$0.02
COMMON SHARES
Basic Shares Outstanding	15.85M		15.79M
Diluted Shares Outstanding	15.85M		15.87M

Balance Sheet

Concept	2021 Q3	2020 Q4	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$295.7M	$780.3M	$750.1M
YoY Change	-60.58%	127.49%	279.99%
Cash & Equivalents	$295.7M	$780.3M	$750.1M
Short-Term Investments		$0.00	$0.00
Other Short-Term Assets	$67.70M	$28.60M	$25.40M
YoY Change	166.54%	47.42%	38.04%
Inventory	$413.6M	$152.0M	$157.5M
Prepaid Expenses
Receivables	$361.6M	$112.8M	$119.0M
Other Receivables	$44.50M	$11.60M	$22.80M
Total Short-Term Assets	$1.223B	$1.121B	$1.110B
YoY Change	10.25%	43.81%	65.96%
LONG-TERM ASSETS
Property, Plant & Equipment	$948.7M	$627.2M	$622.9M
YoY Change	52.3%	0.84%	1.4%
Goodwill	$39.30M	$18.80M
YoY Change		0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$112.3M	$44.10M	$42.80M
YoY Change	162.38%	14.84%	17.26%
Total Long-Term Assets	$1.214B	$743.3M	$737.4M
YoY Change	64.62%	-0.42%	-2.68%
TOTAL ASSETS
Total Short-Term Assets	$1.223B	$1.121B	$1.110B
Total Long-Term Assets	$1.214B	$743.3M	$737.4M
Total Assets	$2.437B	$1.865B	$1.847B
YoY Change	31.95%	22.18%	29.5%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$340.7M	$86.10M	$63.40M
YoY Change	437.38%	-6.41%	-32.41%
Accrued Expenses	$91.00M	$65.10M	$68.50M
YoY Change	32.85%	-8.31%	-5.91%
Deferred Revenue	$0.00	$0.00	$0.00
YoY Change		-100.0%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.100M	$1.900M	$1.600M
YoY Change	31.25%	58.33%	33.33%
Total Short-Term Liabilities	$444.8M	$158.3M	$142.2M
YoY Change	212.8%	-7.1%	-19.11%
LONG-TERM LIABILITIES
Long-Term Debt	$1.042B	$838.1M	$837.6M
YoY Change	24.45%	70.14%	125.71%
Other Long-Term Liabilities	$74.50M	$77.30M	$80.30M
YoY Change	-7.22%	15.37%	205.32%
Total Long-Term Liabilities	$74.50M	$915.4M	$917.9M
YoY Change	-91.88%	63.58%	130.98%
TOTAL LIABILITIES
Total Short-Term Liabilities	$444.8M	$158.3M	$142.2M
Total Long-Term Liabilities	$74.50M	$915.4M	$917.9M
Total Liabilities	$1.716B	$1.132B	$1.128B
YoY Change	52.19%	42.91%	67.09%
SHAREHOLDERS EQUITY
Retained Earnings		$158.2M	$163.0M
YoY Change		-8.45%	-15.54%
Common Stock		$1.069B	$1.066B
YoY Change		0.54%	0.42%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$475.9M	$475.9M
YoY Change		2.7%	3.43%
Treasury Stock Shares		$6.835M	$6.835M
Shareholders Equity	$721.0M	$732.4M	$719.3M
YoY Change
Total Liabilities & Shareholders Equity	$2.437B	$1.865B	$1.847B
YoY Change	31.95%	22.18%	29.5%

Cashflow Statement

Concept	2021 Q3	2020 Q4	2020 Q3
OPERATING ACTIVITIES
Net Income	-$2.300M	$5.900M	$400.0K
YoY Change	-675.0%	-155.66%	-98.43%
Depreciation, Depletion And Amortization	$24.90M	$13.10M	$12.90M
YoY Change	93.02%	2.34%	4.88%
Cash From Operating Activities	$28.40M	$56.20M	$55.80M
YoY Change	-49.1%	-28.32%	-33.09%
INVESTING ACTIVITIES
Capital Expenditures	-$11.90M	-$14.70M	-$5.400M
YoY Change	120.37%	-24.62%	-50.0%
Acquisitions
YoY Change
Other Investing Activities	$8.300M	$0.00	$300.0K
YoY Change	2666.67%	-100.0%	-137.5%
Cash From Investing Activities	-$3.600M	-$14.70M	-$5.100M
YoY Change	-29.41%	-79.72%	-56.03%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-12.20M	-11.30M	-11.20M
YoY Change	8.93%	-113.11%	-49.55%
NET CHANGE
Cash From Operating Activities	28.40M	56.20M	55.80M
Cash From Investing Activities	-3.600M	-14.70M	-5.100M
Cash From Financing Activities	-12.20M	-11.30M	-11.20M
Net Change In Cash	12.60M	30.20M	39.50M
YoY Change	-68.1%	-67.21%	-20.36%
FREE CASH FLOW
Cash From Operating Activities	$28.40M	$56.20M	$55.80M
Capital Expenditures	-$11.90M	-$14.70M	-$5.400M
Free Cash Flow	$40.30M	$70.90M	$61.20M
YoY Change	-34.15%	-27.58%	-35.03%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
	kalu	Expected Period Related To Remediation Expenditures For Environmental Contingencies Period ExpectedPeriodRelatedToRemediationExpendituresForEnvironmentalContingenciesPeriod	P30Y
CY2021Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y1M6D
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y8M12D
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2021Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrent
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrent
CY2021Q3	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrent
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
	kalu	Restructuring Benefit Costs RestructuringBenefitCosts	-800000
CY2020Q3	kalu	Restructuring Benefit Costs RestructuringBenefitCosts	500000
CY2021Q3	kalu	Discount Fees Recognized DiscountFeesRecognized	2100000
CY2021Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	10000000.0
CY2020Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	7300000
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-100000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	732400000
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	4500000
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	9100000
CY2021Q1	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2400000
CY2021Q1	us-gaap	Dividends Cash DividendsCash	11700000
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3100000
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	735000000.0
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-22400000
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15900000
CY2021Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	300000
CY2021Q2	us-gaap	Dividends Cash DividendsCash	11700000
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3600000
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	720700000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-2300000
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10800000
CY2021Q3	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	100000
CY2021Q3	us-gaap	Dividends Cash DividendsCash	11600000
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3500000
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	710580
CY2021Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	93100000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	733900000
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	29100000
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-15500000
CY2020Q1	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4300000
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	12500000
CY2020Q1	us-gaap	Dividends Cash DividendsCash	11300000
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	721000000.0
	kalu	Discount Fees Recognized DiscountFeesRecognized	4000000.0
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1700000
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	721100000
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-6600000
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	11900000
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	400000
CY2020Q2	us-gaap	Dividends Cash DividendsCash	10600000
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2600000
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	718800000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	400000
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	8200000
CY2020Q3	us-gaap	Dividends Cash DividendsCash	10800000
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2700000
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	719300000
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.67
	us-gaap	Net Income Loss NetIncomeLoss	-20200000
	us-gaap	Net Income Loss NetIncomeLoss	22900000
	us-gaap	Depreciation Depreciation	58000000.0
	us-gaap	Depreciation Depreciation	37000000.0
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6200000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2100000
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1600000
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1400000
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-9900000
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	14800000
	us-gaap	Share Based Compensation ShareBasedCompensation	10500000
	us-gaap	Share Based Compensation ShareBasedCompensation	7400000
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	700000
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	500000
	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	-35900000
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-100000
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-100000
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	110700000
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-43400000
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	4100000
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-19800000
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	52500000
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-20100000
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3900000
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5700000
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	105800000
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-27600000
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	17800000
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	6200000
	us-gaap	Other Postretirement Benefits Payments OtherPostretirementBenefitsPayments	1700000
	us-gaap	Other Postretirement Benefits Payments OtherPostretirementBenefitsPayments	2900000
	kalu	Increase Decrease In Noncurrent Assets And Liabilities Net IncreaseDecreaseInNoncurrentAssetsAndLiabilitiesNet	-400000
	kalu	Increase Decrease In Noncurrent Assets And Liabilities Net IncreaseDecreaseInNoncurrentAssetsAndLiabilitiesNet	-11900000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	33300000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	150700000
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	29900000
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	37200000
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	609200000
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	39100000
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	400000
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	1700000
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	500000
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	118100000
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	300000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-639500000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	41600000
	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	380900000
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	8600000
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6100000
	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1600000
	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1200000
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2500000
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4300000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	12500000
	us-gaap	Payments Of Dividends PaymentsOfDividends	35000000.0
	us-gaap	Payments Of Dividends PaymentsOfDividends	32700000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	121400000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	293200000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-484800000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	485500000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	794300000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	278600000
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	309500000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	764100000
	us-gaap	Use Of Estimates UseOfEstimates	<p style="margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-style:italic;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;">Use of Estimates in the Preparation of Financial Statements.<span style="font-style:normal;"> 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 our 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 our consolidated financial position and results of operations. </span></p>
CY2021Q3	us-gaap	Accounts Receivable Sale AccountsReceivableSale	390200000
	us-gaap	Accounts Receivable Sale AccountsReceivableSale	706200000
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	800000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	800000
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	361600000
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	112800000
CY2021Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	81900000
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	37200000
CY2021Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	163200000
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	46000000.0
CY2021Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	159600000
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	62300000
CY2021Q3	us-gaap	Other Inventory Supplies OtherInventorySupplies	8900000
CY2020Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	6500000
CY2021Q3	us-gaap	Inventory Net InventoryNet	413600000
CY2020Q4	us-gaap	Inventory Net InventoryNet	152000000.0
CY2021Q3	us-gaap	Land Land	26000000.0
CY2020Q4	us-gaap	Land Land	21500000
CY2021Q3	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	174700000
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	117200000
CY2021Q3	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1119700000
CY2020Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	847400000
CY2021Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	82300000
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	37800000
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1402700000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1023900000
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	456100000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	398400000
CY2021Q3	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	2100000
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	948700000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	627200000
CY2021Q3	us-gaap	Bank Overdrafts BankOverdrafts	7100000
CY2020Q4	us-gaap	Bank Overdrafts BankOverdrafts	2100000
CY2021Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	11000000.0
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5200000
CY2020Q4	kalu	Accrued Annual Veba Contribution AccruedAnnualVEBAContribution	1700000
CY2021Q3	us-gaap	Interest Payable Current InterestPayableCurrent	11000000.0
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	11600000
CY2021Q3	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	3900000
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	3700000
CY2021Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	22200000
CY2020Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	17100000
CY2021Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	55200000
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	41400000
CY2021Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	30900000
CY2020Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	30600000
CY2021Q3	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	13300000
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	15100000
CY2021Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	30300000
CY2020Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	31600000
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	74500000
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	77300000
CY2021Q3	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	124100000
CY2020Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	8400000
CY2021Q3	kalu	Construction In Progress Expected To Resume On Future Date ConstructionInProgressExpectedToResumeOnFutureDate	19800000
CY2020Q4	kalu	Construction In Progress Expected To Resume On Future Date ConstructionInProgressExpectedToResumeOnFutureDate	20000000.0
CY2021Q3	us-gaap	Lessee Finance Lease Renewal Term1 LesseeFinanceLeaseRenewalTerm1	P60Y
	kalu	Lessee Operating Lease Optionto Terminate Duration LesseeOperatingLeaseOptiontoTerminateDuration	P1Y
CY2021Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.035
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.039
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	45200000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	26500000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2600000
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	8600000
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	8100000
CY2021Q3	kalu	Lease Right Of Use Asset LeaseRightOfUseAsset	53800000
CY2020Q4	kalu	Lease Right Of Use Asset LeaseRightOfUseAsset	34600000
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8400000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4400000
CY2021Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2100000
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1900000
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	40200000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	25600000
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	6500000
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	6200000
CY2021Q3	kalu	Lease Liability LeaseLiability	57200000
CY2020Q4	kalu	Lease Liability LeaseLiability	38100000
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	2800000
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	1600000
	us-gaap	Operating Lease Cost OperatingLeaseCost	7700000
	us-gaap	Operating Lease Cost OperatingLeaseCost	5200000
CY2021Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1500000
CY2020Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	500000
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2500000
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1100000
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	500000
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	500000
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1500000
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1200000
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	200000
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	200000
CY2021Q3	us-gaap	Lease Cost LeaseCost	4800000
CY2020Q3	us-gaap	Lease Cost LeaseCost	2600000
	us-gaap	Lease Cost LeaseCost	11900000
	us-gaap	Lease Cost LeaseCost	7700000
CY2021Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	600000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	2300000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8600000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	1900000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9000000.0
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	1400000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	8300000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	1000000.0
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5100000
CY2021Q3	kalu	Finance Lease Liability Payments Due After Year Four FinanceLeaseLiabilityPaymentsDueAfterYearFour	6400000
CY2021Q3	kalu	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	24500000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	13600000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	58100000
CY2021Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	5000000.0
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	9500000
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	8600000
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	48600000
CY2021Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	50000000.0
CY2020Q4	us-gaap	Goodwill Gross GoodwillGross	37200000
CY2020Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	18400000
CY2020Q4	us-gaap	Goodwill Goodwill	18800000
CY2021Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	18400000
CY2021Q3	us-gaap	Goodwill Goodwill	39300000
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	750600000
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	534300000
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	2130400000
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1703700000
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-2800000
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	1900000
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-1200000
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-44200000
CY2021Q3	us-gaap	Margin Deposit Assets MarginDepositAssets	0
CY2020Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	0
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	0
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	0
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Remainder Of Fiscal Year DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear	800000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	1700000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	2600000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	3400000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	4200000
CY2021Q3	kalu	Defined Benefit Plan Expected Future Benefit Payment After Year Four For Next Five Years DefinedBenefitPlanExpectedFutureBenefitPaymentAfterYearFourForNextFiveYears	31500000
CY2021Q3	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	200000
CY2020Q3	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	300000
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	600000
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	800000
CY2021Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	17200000
CY2021Q3	us-gaap	Loss Contingency Range Of Possible Loss Portion Not Accrued LossContingencyRangeOfPossibleLossPortionNotAccrued	11600000
	kalu	Time Period Within Which Recorded Estimate Of Its Obligation May Change TimePeriodWithinWhichRecordedEstimateOfItsObligationMayChange	P12M
CY2021Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	0
	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	38800000
CY2021Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	100000
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	200000
	us-gaap	Investment Income Interest InvestmentIncomeInterest	200000
	us-gaap	Investment Income Interest InvestmentIncomeInterest	500000
CY2021Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1200000
CY2020Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1100000
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	3000000.0
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	3500000
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	2100000
CY2020Q3	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	300000
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	400000
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-35900000
CY2021Q3	kalu	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	-100000
CY2020Q3	kalu	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	100000
	kalu	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	500000
	kalu	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	-300000
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1200000
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-500000
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-38200000
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-800000
	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.04
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.03
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.02
	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.02
CY2021Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	8800000
CY2020Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-900000
	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-8500000
	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	9600000
CY2021Q3	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	-400000
CY2020Q3	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	200000
	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	1100000
	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	600000
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8400000
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-700000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7400000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10200000
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8400000
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-700000
CY2021Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	1.37
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	2.22
CY2021Q3	kalu	Effective Tax Rate Reconciliation Change In Forecasted Earnings Percent EffectiveTaxRateReconciliationChangeInForecastedEarningsPercent	1.16
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	-0.02
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.01
CY2020Q3	kalu	Effective Tax Rate Reconciliation Change In Forecasted Earnings Percent EffectiveTaxRateReconciliationChangeInForecastedEarningsPercent	-2.11
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.22
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7400000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10200000
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.27
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.31
	kalu	Effective Income Tax Rate Reconciliation Permanent Items Including Nondeductible Compensation Expense And Foreign Withholding Tax EffectiveIncomeTaxRateReconciliationPermanentItemsIncludingNondeductibleCompensationExpenseAndForeignWithholdingTax	-0.07
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.04
	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.04
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.02
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4100000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3800000
CY2021Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	4100000
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3800000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-2300000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	400000
	us-gaap	Net Income Loss NetIncomeLoss	-20200000
	us-gaap	Net Income Loss NetIncomeLoss	22900000
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15852000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15794000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15831000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15804000
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	71000
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	100000
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15852000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15865000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15831000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15904000
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.14
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.02
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.28
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.14
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.02
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.28
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.44
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	210000
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	198000
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	69000
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	41000
	us-gaap	Interest Paid Net InterestPaidNet	35900000
	us-gaap	Interest Paid Net InterestPaidNet	17700000
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10100000
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3500000
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	24300000
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4900000
	us-gaap	Operating Lease Payments OperatingLeasePayments	5700000
	us-gaap	Operating Lease Payments OperatingLeasePayments	3400000
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	2100000
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	2200000
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	295700000
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	750100000
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	13800000
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	14000000.0
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	309500000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	764100000
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	750600000
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	255700000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1815600000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	900700000
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	750600000
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	255700000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1815600000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	900700000
CY2021Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	200000
CY2020Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	100000
	us-gaap	Income Taxes Paid IncomeTaxesPaid	2000000.0
	us-gaap	Income Taxes Paid IncomeTaxesPaid	500000

Files In Submission

Name	View Source	Status
0001564590-21-051812-index-headers.html	Edgar Link	pending
0001564590-21-051812-index.html	Edgar Link	pending
0001564590-21-051812.txt	Edgar Link	pending
0001564590-21-051812-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
kalu-10q_20210930.htm	Edgar Link	pending
kalu-10q_20210930_htm.xml	Edgar Link	completed
kalu-20210930.xsd	Edgar Link	pending
kalu-20210930_cal.xml	Edgar Link	unprocessable
kalu-20210930_def.xml	Edgar Link	unprocessable
kalu-20210930_lab.xml	Edgar Link	unprocessable
kalu-20210930_pre.xml	Edgar Link	unprocessable
kalu-ex311_9.htm	Edgar Link	pending
kalu-ex312_8.htm	Edgar Link	pending
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$KALU
KAISER ALUMINUM CORP Stock $kalu

2021 Q3 Form 10-Q Financial Statement

#000156459021051812 Filed on October 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KALU KAISER ALUMINUM CORP Stock $kalu

2021 Q3 Form 10-Q Financial Statement

#000156459021051812 Filed on October 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KALU
KAISER ALUMINUM CORP Stock $kalu