$ALE
ALLETE INC Stock $ale

$ale Overview Financials Valuation SEC Filings Company Website

2018 Q2 Form 10-Q Financial Statement

#000006675618000075 Filed on August 02, 2018

Income Statement

Concept	2018 Q2	2017 Q2
Revenue	$344.1M	$353.3M
YoY Change	-2.6%	12.23%
Cost Of Revenue	$37.00M	$38.40M
YoY Change	-3.65%	18.15%
Gross Profit	$307.1M	$314.9M
YoY Change	-2.48%	11.55%
Gross Profit Margin	89.25%	89.13%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$56.10M	$50.10M
YoY Change	11.98%	2.87%
% of Gross Profit	18.27%	15.91%
Operating Expenses	$86.80M	$85.90M
YoY Change	1.05%	4.76%
Operating Profit	$36.50M	$54.00M
YoY Change	-32.41%	33.0%
Interest Expense	$17.10M	$16.70M
YoY Change	2.4%	-4.02%
% of Operating Profit	46.85%	30.93%
Other Income/Expense, Net	-$10.60M	-$9.800M
YoY Change	8.16%	-22.83%
Pretax Income	$25.90M	$44.20M
YoY Change	-41.4%	49.83%
Income Tax	-$5.400M	$7.300M
% Of Pretax Income	-20.85%	16.52%
Net Earnings	$31.30M	$36.90M
YoY Change	-15.18%	48.79%
Net Earnings / Revenue	9.1%	10.44%
Basic Earnings Per Share	$0.61	$0.73
Diluted Earnings Per Share	$0.61	$0.72
COMMON SHARES
Basic Shares Outstanding	51.30M shares	50.90M shares
Diluted Shares Outstanding	51.50M shares	51.10M shares

Balance Sheet

Concept	2018 Q2	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$121.9M	$84.20M
YoY Change	44.77%	-8.38%
Cash & Equivalents	$121.9M	$84.20M
Short-Term Investments
Other Short-Term Assets	$24.30M	$38.80M
YoY Change	-37.37%	1.04%
Inventory	$145.4M	$103.4M
Prepaid Expenses
Receivables	$132.4M	$120.1M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$424.0M	$346.5M
YoY Change	22.37%	-2.2%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.809B	$3.746B
YoY Change	1.7%	3.15%
Goodwill	$148.5M	$131.4M
YoY Change	13.01%	0.61%
Intangibles	$77.30M	$79.40M
YoY Change	-2.64%	-3.29%
Long-Term Investments	$123.6M	$143.1M
YoY Change	-13.63%	10.93%
Other Assets	$105.0M	$104.8M
YoY Change	0.19%	5.97%
Total Long-Term Assets	$4.691B	$4.585B
YoY Change	2.31%	1.81%
TOTAL ASSETS
Total Short-Term Assets	$424.0M	$346.5M
Total Long-Term Assets	$4.691B	$4.585B
Total Assets	$5.115B	$4.932B
YoY Change	3.71%	1.52%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$105.0M	$61.00M
YoY Change	72.13%	-5.86%
Accrued Expenses	$18.00M	$17.50M
YoY Change	2.86%	-1.69%
Deferred Revenue	$24.30M
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change		-100.0%
Long-Term Debt Due	$56.70M	$117.7M
YoY Change	-51.83%	82.48%
Total Short-Term Liabilities	$350.2M	$305.4M
YoY Change	14.67%	12.44%
LONG-TERM LIABILITIES
Long-Term Debt	$1.462B	$1.401B
YoY Change	4.34%	-6.5%
Other Long-Term Liabilities	$274.4M	$309.1M
YoY Change	-11.23%	-9.3%
Total Long-Term Liabilities	$1.737B	$1.711B
YoY Change	1.53%	-7.02%
TOTAL LIABILITIES
Total Short-Term Liabilities	$350.2M	$305.4M
Total Long-Term Liabilities	$1.737B	$1.711B
Total Liabilities	$3.007B	$2.915B
YoY Change	3.16%	-3.03%
SHAREHOLDERS EQUITY
Retained Earnings	$720.4M	$657.8M
YoY Change	9.52%	10.96%
Common Stock	$1.415B	$1.387B
YoY Change	2.08%	8.02%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.108B	$2.017B
YoY Change
Total Liabilities & Shareholders Equity	$5.115B	$4.932B
YoY Change	3.71%	1.52%

Cashflow Statement

Concept	2018 Q2	2017 Q2
OPERATING ACTIVITIES
Net Income	$31.30M	$36.90M
YoY Change	-15.18%	48.79%
Depreciation, Depletion And Amortization	$56.10M	$50.10M
YoY Change	11.98%	2.87%
Cash From Operating Activities	$73.10M	$85.70M
YoY Change	-14.7%	61.7%
INVESTING ACTIVITIES
Capital Expenditures	-$45.30M	-$44.40M
YoY Change	2.03%	37.04%
Acquisitions
YoY Change
Other Investing Activities	-$4.200M	$800.0K
YoY Change	-625.0%	-27.27%
Cash From Investing Activities	-$49.50M	-$43.60M
YoY Change	13.53%	39.3%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-6.700M	-46.60M
YoY Change	-85.62%	73.88%
NET CHANGE
Cash From Operating Activities	73.10M	85.70M
Cash From Investing Activities	-49.50M	-43.60M
Cash From Financing Activities	-6.700M	-46.60M
Net Change In Cash	16.90M	-4.500M
YoY Change	-475.56%	-11.76%
FREE CASH FLOW
Cash From Operating Activities	$73.10M	$85.70M
Capital Expenditures	-$45.30M	-$44.40M
Free Cash Flow	$118.4M	$130.1M
YoY Change	-8.99%	52.34%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	ale	Amortizationof Power Purchase Agreements AmortizationofPowerPurchaseAgreements	11800000	USD
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	ale	Amortizationof Power Purchase Agreements AmortizationofPowerPurchaseAgreements	11900000	USD
CY2018Q2	ale	Availableforsale Securities Debt Maturities After Five Years Fair Value AvailableforsaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	1100000	USD
CY2018Q2	ale	Availableforsale Securities Debt Maturities After One Year Through Three Years Fair Value AvailableforsaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsFairValue	3900000	USD
CY2018Q2	ale	Availableforsale Securities Debt Maturities After Three Years Through Five Years Fair Value AvailableforsaleSecuritiesDebtMaturitiesAfterThreeYearsThroughFiveYearsFairValue	2500000	USD
CY2017Q4	ale	Debt Current Gross DebtCurrentGross	64600000	USD
CY2018Q2	ale	Debt Current Gross DebtCurrentGross	57100000	USD
CY2018Q2	ale	Debt Instrument Actual Indebtedness To Total Capital Ratio DebtInstrumentActualIndebtednessToTotalCapitalRatio	0.42
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	ale	Fuel Purchased Powerand Gas Utility FuelPurchasedPowerandGasUtility	189700000	USD
CY2018Q2	ale	Fuel Purchased Powerand Gas Utility FuelPurchasedPowerandGasUtility	96500000	USD
	ale	Fuel Purchased Powerand Gas Utility FuelPurchasedPowerandGasUtility	197400000	USD
	ale	Increase Decreasein Accounts Payablefor Capital Additionsto Property Plantand Equipment IncreaseDecreaseinAccountsPayableforCapitalAdditionstoPropertyPlantandEquipment	400000	USD
	ale	Increase Decreasein Accounts Payablefor Capital Additionsto Property Plantand Equipment IncreaseDecreaseinAccountsPayableforCapitalAdditionstoPropertyPlantandEquipment	39400000	USD
	ale	Intangible Assets Increase Decrease IntangibleAssetsIncreaseDecrease	2400000	USD
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	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
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	dei	Document Period End Date DocumentPeriodEndDate	2018-06-30
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	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	ALLETE INC
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	410418150
	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
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	us-gaap	Business Combination Reason For Business Combination BusinessCombinationReasonForBusinessCombination	The following acquisitions are consistent with ALLETE’s stated strategy of investing in energy infrastructure and related services businesses to complement its regulated businesses, balance exposure to business cycles and changing demand, and provide potential long-term earnings growth.
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	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.69
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.60
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.192
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.124
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	9800000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	5000000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	3900000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	34800000	USD
CY2018Q2	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	31400000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	118700000	USD
CY2018Q2	us-gaap	Equity Method Investments EquityMethodInvestments	123600000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	14800000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	17500000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	38200000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	2800000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	4600000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4900000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	5000000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	5200000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	61000000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	60700000	USD
	us-gaap	Finite Lived Intangible Assets Period Increase Decrease FiniteLivedIntangibleAssetsPeriodIncreaseDecrease	2400000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	148300000	USD
CY2018Q2	us-gaap	Goodwill Goodwill	148500000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	44200000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	106300000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25900000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	73200000	USD
CY2017Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5300000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11400000	USD
CY2018Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4300000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	9000000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-2500000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-400000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7300000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20400000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5400000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-9100000	USD
CY2017Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	15500000	USD
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	37200000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	5400000	USD
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	15400000	USD
CY2017Q2	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-600000	USD
	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-100000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-1200000	USD
	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-3100000	USD
CY2017Q2	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2400000	USD
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6300000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1600000	USD
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4200000	USD
CY2017Q2	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	10000000	USD
	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	23000000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	11200000	USD
	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	25600000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	2400000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	1700000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-12600000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	8100000	USD
	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	400000	USD
	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	500000	USD
	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	19700000	USD
	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	20800000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3200000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-12800000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-1300000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-5200000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	7500000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4300000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2800000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	77600000	USD
CY2018Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	77300000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	225900000	USD
CY2018Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	225800000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	16700000	USD
	us-gaap	Interest Expense InterestExpense	33900000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	17100000	USD
	us-gaap	Interest Expense InterestExpense	34000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	32500000	USD
	us-gaap	Interest Paid Net InterestPaidNet	33000000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	17600000	USD
CY2018Q2	us-gaap	Interest Payable Current InterestPayableCurrent	18000000	USD
CY2017Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	8300000	USD
CY2018Q2	us-gaap	Inventory Finished Goods InventoryFinishedGoods	9100000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	95900000	USD
CY2018Q2	us-gaap	Inventory Net InventoryNet	145400000	USD
CY2017Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	2800000	USD
CY2018Q2	us-gaap	Inventory Raw Materials InventoryRawMaterials	3000000	USD
CY2017Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	46500000	USD
CY2018Q2	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	44300000	USD
CY2017Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	700000	USD
CY2018Q2	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	900000	USD
CY2017Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	4200000	USD
CY2018Q2	us-gaap	Inventory Work In Process InventoryWorkInProcess	4400000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	3011800000	USD
CY2018Q2	us-gaap	Liabilities Liabilities	3006500000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5080000000	USD
CY2018Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5114700000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	351200000	USD
CY2018Q2	us-gaap	Liabilities Current LiabilitiesCurrent	350200000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	1513300000	USD
CY2018Q2	us-gaap	Long Term Debt LongTermDebt	1528800000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	64100000	USD
CY2018Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	56700000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1439200000	USD
CY2018Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1462200000	USD
CY2017Q4	us-gaap	Long Term Investments LongTermInvestments	53100000	USD
CY2018Q2	us-gaap	Long Term Investments LongTermInvestments	52500000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-41500000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-33200000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-84700000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-138500000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	184400000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	194400000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	36900000	USD
	us-gaap	Net Income Loss NetIncomeLoss	85900000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	31300000	USD
	us-gaap	Net Income Loss NetIncomeLoss	82300000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	36900000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	85900000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	31300000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	82300000	USD
CY2017Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-9800000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-19300000	USD
CY2018Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-10600000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-20700000	USD
CY2017Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	11000000	USD
CY2018Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	10900000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segments
CY2017Q2	us-gaap	Operating Expenses OperatingExpenses	85900000	USD
	us-gaap	Operating Expenses OperatingExpenses	170300000	USD
CY2018Q2	us-gaap	Operating Expenses OperatingExpenses	86800000	USD
	us-gaap	Operating Expenses OperatingExpenses	173300000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	54000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	125600000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	36500000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	93900000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	80000000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6100000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	7300000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	9500000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	12800000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	30000000	USD
CY2018Q2	us-gaap	Operating Leases Future Minimum Payments Remainder Of Fiscal Year OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear	7100000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	50000000	USD
CY2018Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	41000000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	49500000	USD
CY2018Q2	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	48100000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	37600000	USD
CY2018Q2	us-gaap	Other Assets Current OtherAssetsCurrent	24300000	USD
CY2017Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	65100000	USD
CY2018Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	63200000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	107700000	USD
CY2018Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	105000000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-200000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	400000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	900000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	300000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	600000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-400000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-300000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-700000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-300000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-100000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-200000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	400000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	700000	USD
CY2018Q2	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	-100000	USD
CY2017Q2	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	500000	USD
CY2018Q2	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	0	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	5300000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	5000000	USD
CY2017Q4	us-gaap	Other Inventory OtherInventory	0	USD
CY2018Q2	us-gaap	Other Inventory OtherInventory	54100000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	83200000	USD
CY2018Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	128500000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	267100000	USD
CY2018Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	274400000	USD
CY2017Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	3800000	USD
CY2018Q2	us-gaap	Other Long Term Investments OtherLongTermInvestments	3700000	USD
CY2017Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1600000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3200000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2200000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4300000	USD
CY2017Q4	us-gaap	Other Restricted Assets Noncurrent OtherRestrictedAssetsNoncurrent	3800000	USD
CY2018Q2	us-gaap	Other Restricted Assets Noncurrent OtherRestrictedAssetsNoncurrent	1500000	USD
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	19700000	USD
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	54000000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	57400000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1600000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	81100000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	133400000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	5000000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	4300000	USD
CY2017Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	191800000	USD
CY2018Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	175200000	USD
	us-gaap	Pension Contributions PensionContributions	1700000	USD
	us-gaap	Pension Contributions PensionContributions	15000000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	74400000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	10700000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	86200000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	72000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1400000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-600000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	1000000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	7200000	USD
	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	2000000	USD
	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	1400000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	36900000	USD
	us-gaap	Profit Loss ProfitLoss	85900000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	31300000	USD
	us-gaap	Profit Loss ProfitLoss	82300000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3822400000	USD
CY2018Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3809300000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	700000	USD
CY2017Q4	us-gaap	Real Estate Investments RealEstateInvestments	26400000	USD
CY2018Q2	us-gaap	Real Estate Investments RealEstateInvestments	25900000	USD
CY2017Q2	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	264900000	USD
	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	546500000	USD
CY2018Q2	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	257800000	USD
	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	528000000	USD
CY2017Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	384700000	USD
CY2018Q2	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	374500000	USD
CY2017Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	532000000	USD
CY2018Q2	us-gaap	Regulatory Liabilities RegulatoryLiabilities	555200000	USD
CY2017Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	0	USD
CY2018Q2	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	39200000	USD
CY2017Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	532000000	USD
CY2018Q2	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	516000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	127000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	57900000	USD
CY2016Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	2200000	USD
CY2017Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	3700000	USD
CY2017Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	2600000	USD
CY2018Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	2300000	USD
CY2016Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8600000	USD
CY2017Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8600000	USD
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8600000	USD
CY2018Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8600000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	689400000	USD
CY2018Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	720400000	USD
	us-gaap	Revenue Performance Obligation Description Of Payment Terms RevenuePerformanceObligationDescriptionOfPaymentTerms	Payment terms and conditions vary across our businesses. Aside from taconite-producing Large Power Customers, payment terms generally require payment to be made within 15 to 30 days from the end of the period that the service has been rendered or goods provided. In the case of its taconite-producing Large Power Customers, as permitted by the MPUC, Minnesota Power requires weekly payments for electric usage based on monthly energy usage estimates.
CY2017Q2	us-gaap	Revenues Revenues	353300000	USD
	us-gaap	Revenues Revenues	718900000	USD
CY2018Q2	us-gaap	Revenues Revenues	344100000	USD
	us-gaap	Revenues Revenues	702300000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3300000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3300000	USD
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	13500000	USD
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	0	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	14000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	2068200000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	2108200000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2068200000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2108200000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	2068700000	USD
CY2017Q2	us-gaap	Taxes Other TaxesOther	14200000	USD
	us-gaap	Taxes Other TaxesOther	28600000	USD
CY2018Q2	us-gaap	Taxes Other TaxesOther	14400000	USD
	us-gaap	Taxes Other TaxesOther	30700000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	50000000	USD
CY2018Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	42000000	USD
	us-gaap	Types Of Net Regulatory Assets Earning Returns TypesOfNetRegulatoryAssetsEarningReturns	No regulatory assets or liabilities are currently earning a return.
CY2017Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	10000000	USD
CY2018Q2	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	9900000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1700000	USD
CY2018Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1700000	USD
CY2018Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	800000	USD
CY2017Q2	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	82500000	USD
	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	160600000	USD
CY2018Q2	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	80400000	USD
	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	162400000	USD
CY2017Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	200000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	200000	shares
CY2018Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	200000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	200000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51100000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50700000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51500000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51400000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50900000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50500000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51300000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51200000	shares

Files In Submission

Name	View Source	Status
0000066756-18-000075-index-headers.html	Edgar Link	pending
0000066756-18-000075-index.html	Edgar Link	pending
0000066756-18-000075.txt	Edgar Link	pending
0000066756-18-000075-xbrl.zip	Edgar Link	pending
ale-20180630.xml	Edgar Link	completed
ale-20180630.xsd	Edgar Link	pending
ale-20180630_cal.xml	Edgar Link	unprocessable
ale-20180630_def.xml	Edgar Link	unprocessable
ale-20180630_lab.xml	Edgar Link	unprocessable
ale-20180630_pre.xml	Edgar Link	unprocessable
ale6-30x201810xq.htm	Edgar Link	pending
ale6-30x2018exx31a.htm	Edgar Link	pending
ale6-30x2018exx31b.htm	Edgar Link	pending
ale6-30x2018exx32.htm	Edgar Link	pending
ale6-30x2018exx4.htm	Edgar Link	pending
ale6-30x2018exx95.htm	Edgar Link	pending
ale6-30x2018exx99.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
logoallete201510ka04.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$ALE
ALLETE INC Stock $ale

2018 Q2 Form 10-Q Financial Statement

#000006675618000075 Filed on August 02, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALE ALLETE INC Stock $ale

2018 Q2 Form 10-Q Financial Statement

#000006675618000075 Filed on August 02, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALE
ALLETE INC Stock $ale