$SR
Spire Inc Stock $sr

$sr Overview Financials Valuation SEC Filings Company Website

2020 Q3 Form 10-K Financial Statement

#000156459020054448 Filed on November 18, 2020

Income Statement

Concept	2020 Q3	2020	2019 Q3
Revenue	$251.9M	$1.855B	$225.6M
YoY Change	11.66%	-4.97%	-5.69%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$50.50M	$197.3M	$46.80M
YoY Change	7.91%	8.59%	2.86%
% of Gross Profit
Operating Expenses	$251.8M	$1.500B	$251.2M
YoY Change	0.24%	-9.07%	-2.67%
Operating Profit	$100.0K	$206.4M	-$25.60M
YoY Change	-100.39%	-31.72%	35.45%
Interest Expense	-$25.20M	$105.5M	-$25.30M
YoY Change	-0.4%	1.05%	3.69%
% of Operating Profit	-25200.0%	51.11%
Other Income/Expense, Net	$900.0K	$100.0K	$5.900M
YoY Change	-84.75%	-99.53%	-1083.33%
Pretax Income	-$24.20M	$101.0M	-$45.00M
YoY Change	-46.22%	-53.9%	2.51%
Income Tax	-$4.500M	$12.40M	-$10.70M
% Of Pretax Income		12.28%
Net Earnings	-$19.70M	$88.60M	-$34.30M
YoY Change	-42.57%	-52.0%	32.43%
Net Earnings / Revenue	-7.82%	4.78%	-15.2%
Basic Earnings Per Share	-$0.45	$1.44	-$0.75
Diluted Earnings Per Share	-$0.45	$1.44	-$0.74
COMMON SHARES
Basic Shares Outstanding		51.20M
Diluted Shares Outstanding		51.30M

Balance Sheet

Concept	2020 Q3	2020	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$4.100M	$4.100M	$5.800M
YoY Change	-29.31%	-29.31%	31.82%
Cash & Equivalents	$4.100M	$4.100M	$5.800M
Short-Term Investments
Other Short-Term Assets	$33.00M	$141.7M	$10.50M
YoY Change	214.29%	15.67%	-71.93%
Inventory	$191.5M	$191.5M	$196.6M
Prepaid Expenses	$29.20M		$29.10M
Receivables	$253.3M	$253.3M	$289.6M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$590.6M	$590.6M	$614.5M
YoY Change	-3.89%	-3.89%	-6.84%
LONG-TERM ASSETS
Property, Plant & Equipment	$432.3M	$5.178B	$477.8M
YoY Change	-9.52%	7.2%	173.81%
Goodwill	$1.172B		$1.172B
YoY Change	0.0%		0.0%
Intangibles
YoY Change
Long-Term Investments	$71.70M	$71.70M	$72.30M
YoY Change	-0.83%	-0.83%	5.24%
Other Assets	$225.5M	$1.230B	$163.4M
YoY Change	38.0%	32.09%	26.76%
Total Long-Term Assets	$7.651B	$7.651B	$7.005B
YoY Change	9.22%	9.22%	13.27%
TOTAL ASSETS
Total Short-Term Assets	$590.6M	$590.6M	$614.5M
Total Long-Term Assets	$7.651B	$7.651B	$7.005B
Total Assets	$8.241B	$8.241B	$7.619B
YoY Change	8.16%	8.16%	11.33%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$243.3M	$243.3M	$301.5M
YoY Change	-19.3%	-19.3%	3.93%
Accrued Expenses	$52.80M	$52.80M	$45.70M
YoY Change	15.54%	15.54%	-16.76%
Deferred Revenue	$45.30M		$32.60M
YoY Change	38.96%		43.61%
Short-Term Debt	$648.0M	$648.0M	$743.2M
YoY Change	-12.81%	-12.81%	34.25%
Long-Term Debt Due	$60.40M	$60.40M	$40.00M
YoY Change	51.0%	51.0%	-77.21%
Total Short-Term Liabilities	$1.449B	$1.449B	$1.469B
YoY Change	-1.33%	-1.33%	11.13%
LONG-TERM LIABILITIES
Long-Term Debt	$2.424B	$2.424B	$2.083B
YoY Change	16.38%	16.38%	9.6%
Other Long-Term Liabilities	$138.4M	$1.331B	$68.60M
YoY Change	101.75%	24.41%	2.69%
Total Long-Term Liabilities	$2.562B	$3.755B	$2.151B
YoY Change	19.1%	19.1%	9.37%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.449B	$1.449B	$1.469B
Total Long-Term Liabilities	$2.562B	$3.755B	$2.151B
Total Liabilities	$4.011B	$5.719B	$3.620B
YoY Change	10.81%	12.66%	10.08%
SHAREHOLDERS EQUITY
Retained Earnings	$720.7M		$775.5M
YoY Change	-7.07%		8.37%
Common Stock	$51.60M		$51.00M
YoY Change	1.18%		0.59%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.522B	$2.522B	$2.543B
YoY Change
Total Liabilities & Shareholders Equity	$8.241B	$8.241B	$7.619B
YoY Change	8.16%	8.16%	11.33%

Cashflow Statement

Concept	2020 Q3	2020	2019 Q3
OPERATING ACTIVITIES
Net Income	-$19.70M	$88.60M	-$34.30M
YoY Change	-42.57%	-52.0%	32.43%
Depreciation, Depletion And Amortization	$50.50M	$197.3M	$46.80M
YoY Change	7.91%	8.59%	2.86%
Cash From Operating Activities	$16.10M	$469.9M	$10.30M
YoY Change	56.31%	4.21%	-118.83%
INVESTING ACTIVITIES
Capital Expenditures	-$162.7M	$638.4M	-$214.8M
YoY Change	-24.26%	-22.46%	30.1%
Acquisitions
YoY Change
Other Investing Activities	$1.200M	-$6.800M	$0.00
YoY Change		-195.77%	-100.0%
Cash From Investing Activities	-$161.5M	-$631.6M	-$214.8M
YoY Change	-24.81%	-24.66%	33.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$41.10M
YoY Change		110.77%
Debt Paid & Issued, Net		$147.0M
YoY Change		-20.15%
Cash From Financing Activities	142.1M	160.0M	204.5M
YoY Change	-30.51%	-56.97%	-10.93%
NET CHANGE
Cash From Operating Activities	16.10M	469.9M	10.30M
Cash From Investing Activities	-161.5M	-631.6M	-214.8M
Cash From Financing Activities	142.1M	160.0M	204.5M
Net Change In Cash	-3.300M	-1.700M	0.00000003912
YoY Change	-8436542902857341.0%	-89.1%	-100.0%
FREE CASH FLOW
Cash From Operating Activities	$16.10M	$469.9M	$10.30M
Capital Expenditures	-$162.7M	$638.4M	-$214.8M
Free Cash Flow	$178.8M	-$168.5M	$225.1M
YoY Change	-20.57%	-54.75%	103.89%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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CY2018	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	153500000
CY2019Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	163400000
CY2019Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	45700000
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	900000
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-10800000
CY2020Q3	us-gaap	Goodwill Goodwill	1171600000
CY2019Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	767600000
CY2019Q3	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	35600000
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-6400000
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	5800000
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	21400000
CY2019Q3	us-gaap	Goodwill Goodwill	1171600000
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.49
CY2020	sr	Temporary Equity Adjustments To Redemption Value TemporaryEquityAdjustmentsToRedemptionValue	3400000
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001126956
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020Q1	dei	Entity Public Float EntityPublicFloat	3703018742
CY2020Q3	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	154300000
CY2019Q3	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	162600000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	102400000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2900000
CY2020Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	10000000.0
CY2019Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	3400000
CY2019Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1521400000
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	75000000.0
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	78500000
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	5300000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	88600000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12400000
CY2019	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1952400000
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1855400000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34500000
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CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	101000000.0
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	206400000
CY2020	us-gaap	Interest Expense InterestExpense	105500000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	219100000
CY2019	us-gaap	Interest Expense InterestExpense	104400000
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	21200000
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-8000000.0
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-26500000
CY2020	dei	Entity Registrant Name EntityRegistrantName	Spire Inc
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	1-16681
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	700 Market Street
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	St. Louis
CY2020	dei	City Area Code CityAreaCode	314
CY2020	dei	Local Phone Number LocalPhoneNumber	342-0500
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MO
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2976504
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	51618125
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
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CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	178900000
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CY2018	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	6400000
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2800000
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3200000
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	3900000
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	21400000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-15600000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2700000
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	7400000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	4100000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	95100000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	14000000.0
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	5800000
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1500000
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	24900000
CY2019Q3	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	6146500000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	3200000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	1300000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	1500000
CY2020	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPortionAttributableToParent	-12100000
CY2019	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPortionAttributableToParent	-47700000
CY2018	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPortionAttributableToParent	2400000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-500000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-900000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	400000
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	500000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	100000
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-12600000
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-2700000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9900000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	78700000
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	6766300000
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2086200000
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4680100000
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	19000000.0
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	432300000
CY2020Q3	sr	Other Investments Other Property OtherInvestmentsOtherProperty	71700000
CY2020Q3	sr	Other Property And Investments OtherPropertyAndInvestments	504000000.0
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4100000
CY2019Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	78600000
CY2020Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	131800000
CY2020Q3	sr	Other Accounts Receivable OtherAccountsReceivable	146400000
CY2020Q3	us-gaap	Other Inventory Purchased Goods OtherInventoryPurchasedGoods	26500000
CY2020Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	69500000
CY2018	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	600000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-37700000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2500000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	146900000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	216700000
CY2019Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1794500000
CY2019Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4352000000.0
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	477800000
CY2019Q3	sr	Other Investments Other Property OtherInvestmentsOtherProperty	72300000
CY2019Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	139800000
CY2019Q3	sr	Other Accounts Receivable OtherAccountsReceivable	172800000
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	23000000.0
CY2019Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	4300000
CY2019Q3	us-gaap	Other Inventory Purchased Goods OtherInventoryPurchasedGoods	23300000
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	-400000
CY2018	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	3100000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	300000
CY2020Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	29200000
CY2020Q3	us-gaap	Other Assets Current OtherAssetsCurrent	33000000.0
CY2020Q3	us-gaap	Assets Current AssetsCurrent	590600000
CY2020Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1069400000
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	225500000
CY2020Q3	sr	Regulatory And Other Non Current RegulatoryAndOtherNonCurrent	2466500000
CY2020Q3	us-gaap	Assets Assets	8241200000
CY2020Q3	us-gaap	Preferred Stock Value PreferredStockValue	242000000.0
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000.0
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	51600000
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	51600000
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	51600000
CY2020Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1549200000
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	720700000
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-41200000
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	2522300000
CY2020Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	3400000
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2423700000
CY2019Q3	us-gaap	Preferred Stock Value PreferredStockValue	242000000.0
CY2020Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	4949400000
CY2019Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	51000000.0
CY2020Q3	sr	Long Term Debt Current Maturities Excluding Notes Payable LongTermDebtCurrentMaturitiesExcludingNotesPayable	60400000
CY2020Q3	us-gaap	Notes Payable Current NotesPayableCurrent	648000000.0
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	243300000
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	45300000
CY2019Q3	sr	Regulatory And Other Non Current RegulatoryAndOtherNonCurrent	2102600000
CY2019Q3	us-gaap	Assets Assets	7619200000
CY2019Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	51000000.0
CY2019Q3	us-gaap	Assets Current AssetsCurrent	614500000
CY2019Q3	us-gaap	Common Stock Value CommonStockValue	51000000.0
CY2019Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1505800000
CY2019Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	775500000
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-31300000
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	2543000000.0
CY2019Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	4629000000.0
CY2019Q3	sr	Long Term Debt Current Maturities Excluding Notes Payable LongTermDebtCurrentMaturitiesExcludingNotesPayable	40000000.0
CY2019Q3	us-gaap	Notes Payable Current NotesPayableCurrent	743200000
CY2019Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	301500000
CY2019Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	32600000
CY2019Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	29100000
CY2019Q3	us-gaap	Other Assets Current OtherAssetsCurrent	10500000
CY2019Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2019Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000.0
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2082600000
CY2020Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	46300000
CY2019Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	140900000
CY2020Q3	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	30600000
CY2020Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	71400000
CY2020Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	113000000.0
CY2020Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	190900000
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1449200000
CY2020Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	511400000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	309000000.0
CY2020Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	540100000
CY2020Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	343700000
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	138400000
CY2020Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1842600000
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8241200000
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	1991300000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	214200000
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	153000000.0
CY2018	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1600000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7700000
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2800000
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.25
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	112100000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2500000
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	2255400000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184600000
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	14400000
CY2019	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	5100000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6200000
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2300000
CY2019	sr	Temporary Equity Adjustments To Redemption Value TemporaryEquityAdjustmentsToRedemptionValue	-800000
CY2019	sr	Preferred Stock Value Issued PreferredStockValueIssued	242000000.0
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.37
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	120500000
CY2019	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	0.344
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3400000
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	2543000000.0
CY2020	us-gaap	Net Income Loss NetIncomeLoss	88600000
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	32000000.0
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	128400000
CY2020	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	1.84375
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	18400000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9900000
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	2522300000
CY2019Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1468800000
CY2019Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	451400000
CY2019Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	264800000
CY2019Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	337600000
CY2019Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	399000000.0
CY2019Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	68600000
CY2019Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7619200000
CY2019Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	68500000
CY2019Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	60800000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	88600000
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	197300000
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	148600000
CY2020	sr	Increase Decrease In Delayed Advances Customer Billings IncreaseDecreaseInDelayedAdvancesCustomerBillings	-7000000.0
CY2019	sr	Increase Decrease In Delayed Advances Customer Billings IncreaseDecreaseInDelayedAdvancesCustomerBillings	-12400000
CY2018	sr	Increase Decrease In Delayed Advances Customer Billings IncreaseDecreaseInDelayedAdvancesCustomerBillings	12800000
CY2019	us-gaap	Payments To Acquire Business Two Net Of Cash Acquired PaymentsToAcquireBusinessTwoNetOfCashAcquired	7900000
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-6800000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-631600000
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	242000000.0
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	510000000.0
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	147000000.0
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-95200000
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	189600000
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	41100000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	128000000.0
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14800000
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Georgia;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">USE OF ESTIMATES <span style="font-weight:normal;">– The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.</span></p>
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	181700000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2600000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-13600000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-15500000
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-43100000
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	12600000
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	76300000
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	168400000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	160000000.0
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	9000000.0
CY2020	us-gaap	Interest Paid Net InterestPaidNet	100000000.0
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	13000000.0
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	67600000
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	80600000
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	62100000
CY2019Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	337600000
CY2018Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	321100000
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	3000000.0
CY2019	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	10800000
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	6900000
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	8300000
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	14000000.0
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	192400000
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	1000000.0
CY2020Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	540100000
CY2019Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	337600000
CY2020	sr	Difference Between Replacement Cost Of Gas Storage And Inventory Basis Amount DifferenceBetweenReplacementCostOfGasStorageAndInventoryBasisAmount	12500000
CY2019	sr	Difference Between Replacement Cost Of Gas Storage And Inventory Basis Amount DifferenceBetweenReplacementCostOfGasStorageAndInventoryBasisAmount	17000000.0
CY2020Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	23000000.0
CY2018Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	22400000
CY2020	sr	Numberof Monthsofthe Original Maturityof Debt Instruments Purchased NumberofMonthsoftheOriginalMaturityofDebtInstrumentsPurchased	P3M
CY2018Q3	us-gaap	Restricted Cash RestrictedCash	17000000.0
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	23000000.0
CY2018Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	22400000
CY2017Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	18300000
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	14000000.0
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	16900000
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	14600000
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-12100000
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-16300000
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-10500000
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	24900000
CY2019Q3	sr	Other Property And Investments OtherPropertyAndInvestments	550100000
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5800000
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-48500000
CY2019Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12700000
CY2020	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	RECLASSIFICATIONS <span style="font-weight:normal;">– Spire’s consolidated statements of income historically showed Gas Utility operating revenues and expense line items separately from Gas Marketing and other operations. The current presentation shows operating revenues and expense line items on a consolidated basis. Disaggregated data is presented in </span><a href="#Note_14_Information_by_Operating_Segment"><span style="text-decoration:underline;font-weight:normal;">Note 14</span><span style="font-weight:normal;">, Information by Operating Segment. Prior period amounts have been reclassified to conform with the current period presentation.</span></a>
CY2020	sr	Gross Receipts Tax Amounts Included Operating Revenues GrossReceiptsTaxAmountsIncludedOperatingRevenues	91500000
CY2019	sr	Gross Receipts Tax Amounts Included Operating Revenues GrossReceiptsTaxAmountsIncludedOperatingRevenues	99300000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.160
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2020	sr	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Total Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTotalAmount	9400000
CY2019	sr	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Total Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTotalAmount	8600000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P2Y10M24D
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2018	sr	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Total Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTotalAmount	6900000
CY2020	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	600000
CY2019	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1400000
CY2018	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1300000
CY2018	sr	Gross Receipts Tax Amounts Included Operating Revenues GrossReceiptsTaxAmountsIncludedOperatingRevenues	98400000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	1000000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0157
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0288
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0176
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.168
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.170
CY2020	sr	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Prior Period Disallowed Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsPriorPeriodDisallowedCapitalizedAmount	0
CY2019	sr	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Prior Period Disallowed Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsPriorPeriodDisallowedCapitalizedAmount	0
CY2018	sr	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Prior Period Disallowed Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsPriorPeriodDisallowedCapitalizedAmount	6900000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8800000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7200000
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12500000
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2100000
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1700000
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4000000.0
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	6700000
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	5500000
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8500000
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	10800000
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M
CY2020	us-gaap	Net Income Loss NetIncomeLoss	88600000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184600000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	214200000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	5300000
CY2020	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	100000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50700000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49100000
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	400000
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	500000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	73700000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	178900000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	213700000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51200000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50700000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49100000
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.44
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.35
CY2020	us-gaap	Net Income Loss NetIncomeLoss	88600000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184600000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	214200000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	5300000
CY2020	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	100000
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	400000
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	500000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	73700000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	178900000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	213700000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51200000
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	200000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51300000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50800000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49300000
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.44
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.52
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.33
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2020	us-gaap	Preferred Stock Voting Rights PreferredStockVotingRights	Shareholders of the Preferred Stock generally have no voting rights with respect to matters that generally require the approval of voting stockholders. The limited voting rights of holders of the Preferred Stock include the right to vote on certain matters that may affect the preference or special rights of the Preferred Stock. In addition, if and whenever dividends on any shares of Preferred Stock have not been declared and paid for at least six dividend periods, whether or not consecutive, the number of directors then constituting the Board shall automatically be increased by two (to be elected by the holders of the Preferred Stock) until all accumulated and unpaid dividends on the Preferred Stock have been paid in full.
CY2019Q2	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.0590
CY2019Q2	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	25000
CY2019Q2	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.0590
CY2020	us-gaap	Preferred Stock Redemption Date PreferredStockRedemptionDate	2024-08-15
CY2020	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	5800000
CY2020Q3	sr	Number Of Shares Authorized For Issuance Under Dividend Reinvestment And Stock Purchase Program In Shares NumberOfSharesAuthorizedForIssuanceUnderDividendReinvestmentAndStockPurchaseProgramInShares	250000
CY2020Q3	sr	Number Of Shares Remaining And Available For Issuance Under Dividend Reinvestment And Stock Purchase Program In Shares NumberOfSharesRemainingAndAvailableForIssuanceUnderDividendReinvestmentAndStockPurchaseProgramInShares	207254
CY2020Q3	sr	Retained Earnings Dividend Restrictions Formula Component Fixed Amount RetainedEarningsDividendRestrictionsFormulaComponentFixedAmount	8000000.0
CY2020Q3	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	1269400000
CY2019Q3	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	1182400000
CY2020Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2500000000.0
CY2019Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2137000000.0
CY2020Q3	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	15900000
CY2019Q3	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	14400000
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	60400000
CY2019Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	40000000.0
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2423700000
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2082600000
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	60400000
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	55800000
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	336200000
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	156600000
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	42000000.0
CY2020Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2500000000.0
CY2019	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	6800000
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	2600000
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	975000000.0
CY2020Q3	sr	Nonmonetary Notional Amount Of Natural Gas Derivative Contracts Not Designated As Normal Purchases Or Normal Sales NonmonetaryNotionalAmountOfNaturalGasDerivativeContractsNotDesignatedAsNormalPurchasesOrNormalSales	278300000
CY2020Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Next Twelve Months NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInNextTwelveMonths	233100000
CY2020Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Two NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearTwo	35700000
CY2020Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Three NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearThree	5800000
CY2020Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Four NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearFour	1300000
CY2020Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Five NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearFive	1600000
CY2020Q3	sr	Notional Amountof Non Exchange Traded Natural Gas Commodity Contracts To Be Settledin Year Six NotionalAmountofNonExchangeTradedNaturalGasCommodityContractsToBeSettledinYearSix	800000
CY2020Q3	us-gaap	Derivative Loss On Derivative DerivativeLossOnDerivative	300000
CY2019Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	54800000
CY2020Q3	us-gaap	Other Receivables From Broker Dealers And Clearing Organizations OtherReceivablesFromBrokerDealersAndClearingOrganizations	7600000
CY2020Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	49200000
CY2020Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	99500000
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	24200000
CY2020Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	49200000
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	24200000
CY2020Q3	sr	Fair Value Of Cash Margin Receivable Offset With Derivatives FairValueOfCashMarginReceivableOffsetWithDerivatives	-9000000.0
CY2019Q3	sr	Fair Value Of Cash Margin Receivable Offset With Derivatives FairValueOfCashMarginReceivableOffsetWithDerivatives	14300000
CY2020Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	23000000.0
CY2019Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	23700000
CY2020Q3	us-gaap	Derivative Assets DerivativeAssets	17200000
CY2019Q3	us-gaap	Derivative Assets DerivativeAssets	14800000
CY2020Q3	sr	Derivative Assets Other Current DerivativeAssetsOtherCurrent	15800000
CY2019Q3	sr	Derivative Assets Other Current DerivativeAssetsOtherCurrent	4200000
CY2020Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	1400000
CY2019Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	10600000
CY2020Q3	us-gaap	Derivative Assets DerivativeAssets	17200000
CY2019Q3	us-gaap	Derivative Assets DerivativeAssets	14800000
CY2020Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	99500000
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	78500000
CY2020Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	23000000.0
CY2019Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	23700000
CY2020Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	76500000
CY2019Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	54800000
CY2020Q3	sr	Derivative Liabilities Other Current DerivativeLiabilitiesOtherCurrent	71000000.0
CY2019Q3	sr	Derivative Liabilities Other Current DerivativeLiabilitiesOtherCurrent	50000000.0
CY2020Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	5500000
CY2019Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	4800000
CY2020Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	76500000
CY2019Q3	us-gaap	Other Receivables From Broker Dealers And Clearing Organizations OtherReceivablesFromBrokerDealersAndClearingOrganizations	8100000
CY2020Q3	sr	Number Of Counterparties For Which Credit Risk Is Disclosed NumberOfCounterpartiesForWhichCreditRiskIsDisclosed	5
CY2020Q3	sr	Number Of Counterparties Investment Grade Rated Or Owned By Investment Grade Rated Integrated Utilities NumberOfCounterpartiesInvestmentGradeRatedOrOwnedByInvestmentGradeRatedIntegratedUtilities	4
CY2017Q4	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2900000
CY2019Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2500000
CY2020Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0
CY2019Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0
CY2020Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0
CY2019Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0
CY2020	sr	Gains Or Losses Includible In Cost Amortized To Extent Exceeds Projected Benefit Obligations Or Market Related Value Of Plan Assets Percentage GainsOrLossesIncludibleInCostAmortizedToExtentExceedsProjectedBenefitObligationsOrMarketRelatedValueOfPlanAssetsPercentage	0.10
CY2020Q3	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation	732600000
CY2019Q3	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation	751400000
CY2020Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	699300000
CY2019Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	712900000
CY2020Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	473100000
CY2019Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	521800000
CY2020	sr	Gains Or Losses Includible In Cost Amortized To Extent Exceeds Projected Benefit Obligations Or Market Related Value Of Plan Assets Percentage GainsOrLossesIncludibleInCostAmortizedToExtentExceedsProjectedBenefitObligationsOrMarketRelatedValueOfPlanAssetsPercentage	0.10
CY2018Q2	sr	Postretirement Benefit Plans Recovery In Rates Base Allowance PostretirementBenefitPlansRecoveryInRatesBaseAllowance	8600000
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13600000
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13800000
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	12500000
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1855400000
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1855400000
CY2020	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	696100000
CY2020	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	458600000
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	197300000
CY2020	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	148400000
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	148600000
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	1649000000.0
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	206400000
CY2020	sr	Net Economic Earnings NetEconomicEarnings	207800000
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	638400000
CY2019	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1952400000
CY2019	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1952400000
CY2019	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	840300000
CY2019	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	474100000
CY2019	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	181700000
CY2019	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	154000000.0
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	1650100000
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	302300000
CY2019	sr	Net Economic Earnings NetEconomicEarnings	195100000
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	823300000
CY2018	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1965000000.0
CY2018	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1965000000.0
CY2018	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	871700000
CY2018	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	477300000
CY2018	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	168400000
CY2018	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	153500000
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	1670900000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	294100000
CY2018	sr	Net Economic Earnings NetEconomicEarnings	183700000
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	499400000
CY2020Q3	us-gaap	Assets Assets	8241200000
CY2019Q3	us-gaap	Assets Assets	7619200000
CY2018Q3	us-gaap	Assets Assets	6843600000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	88600000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184600000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	214200000
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	148600000
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2020	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	0
CY2019	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	12200000
CY2018	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	0
CY2020	sr	Public Utilities Approved Rate Increase Decrease Regulatory Costs PublicUtilitiesApprovedRateIncreaseDecreaseRegulatoryCosts	0
CY2019	sr	Public Utilities Approved Rate Increase Decrease Regulatory Costs PublicUtilitiesApprovedRateIncreaseDecreaseRegulatoryCosts	0
CY2018	sr	Public Utilities Approved Rate Increase Decrease Regulatory Costs PublicUtilitiesApprovedRateIncreaseDecreaseRegulatoryCosts	30600000
CY2020	sr	Fair Value And Timing Adjustments FairValueAndTimingAdjustments	2500000
CY2019	sr	Fair Value And Timing Adjustments FairValueAndTimingAdjustments	1200000
CY2018	sr	Fair Value And Timing Adjustments FairValueAndTimingAdjustments	-4300000
CY2020	sr	Acquisition Divestiture And Restructuring Activities AcquisitionDivestitureAndRestructuringActivities	0
CY2019	sr	Acquisition Divestiture And Restructuring Activities AcquisitionDivestitureAndRestructuringActivities	400000
CY2018	sr	Acquisition Divestiture And Restructuring Activities AcquisitionDivestitureAndRestructuringActivities	13600000
CY2020	sr	Net Economic Earnings Reconciliation Adjustments Income Tax Effect NetEconomicEarningsReconciliationAdjustmentsIncomeTaxEffect	-31900000
CY2019	sr	Net Economic Earnings Reconciliation Adjustments Income Tax Effect NetEconomicEarningsReconciliationAdjustmentsIncomeTaxEffect	-3300000
CY2018	sr	Net Economic Earnings Reconciliation Adjustments Income Tax Effect NetEconomicEarningsReconciliationAdjustmentsIncomeTaxEffect	-10300000
CY2020	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	0
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	0
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	-60100000
CY2020	sr	Net Economic Earnings NetEconomicEarnings	207800000
CY2019	sr	Net Economic Earnings NetEconomicEarnings	195100000
CY2018	sr	Net Economic Earnings NetEconomicEarnings	183700000
CY2020Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	69500000
CY2019Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	78600000
CY2020Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1069400000
CY2019Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	767600000
CY2020Q3	us-gaap	Regulatory Assets RegulatoryAssets	1138900000
CY2019Q3	us-gaap	Regulatory Assets RegulatoryAssets	846200000
CY2020Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	113000000.0
CY2019Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	60800000
CY2020Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	343700000
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.55
CY2019Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	399000000.0
CY2020Q3	us-gaap	Regulatory Liabilities RegulatoryLiabilities	456700000
CY2019Q3	us-gaap	Regulatory Liabilities RegulatoryLiabilities	459800000
CY2020Q3	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	366500000
CY2019Q3	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	334200000
CY2020	sr	Remaining Recovery Period Of Certain Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingRecoveryPeriodOfCertainRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	P20Y
CY2020	us-gaap	Remaining Recovery Period Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided1 RemainingRecoveryPeriodOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided1	P15Y
CY2020Q3	sr	Customer Share CustomerShare	0.75
CY2020	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	1745400000
CY2019Q3	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	1200000
CY2020	us-gaap	Lessee Operating Lease Option To Extend LesseeOperatingLeaseOptionToExtend	The lease agreement covering the Company’s primary office space in St. Louis extends through February 2035, with an option to renew for an additional five years
CY2020	sr	Lessee Operating Lease Extend Period LesseeOperatingLeaseExtendPeriod	2028-12
CY2020	us-gaap	Lessee Operating Lease Option To Terminate LesseeOperatingLeaseOptionToTerminate	with options to terminate three years
CY2020Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	8700000
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	8500000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	71100000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	6800000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	6100000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4800000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	36500000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	90300000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	25400000
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	64900000
CY2018	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	10000000.0
CY2019	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	10900000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	8200000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	7000000.0
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	65100000
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6500000
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	58400000
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P15Y10M24D
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.042
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6600000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7200000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	7200000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5800000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	5100000
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	58400000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	69400000
CY2019Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	566900000
CY2020Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	715500000
CY2020Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	321100000
CY2020Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	251900000
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	102300000
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	210500000
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-106500000
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	100000
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	67000000.0
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	133600000
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-92300000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-19700000
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.45
CY2018Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	602000000.0
CY2019Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	803500000
CY2019Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	321300000
CY2019Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	225600000
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	105100000
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	209500000
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	13300000
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.87
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.45
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.24
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.54
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.87
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-25600000
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	67300000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	154600000
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-3000000.0
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-34300000
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.33
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.05
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.09
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.75
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.32
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.04
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.09
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.74

Files In Submission

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$SR
Spire Inc Stock $sr

2020 Q3 Form 10-K Financial Statement

#000156459020054448 Filed on November 18, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SR Spire Inc Stock $sr

2020 Q3 Form 10-K Financial Statement

#000156459020054448 Filed on November 18, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SR
Spire Inc Stock $sr