10-K Filing

ONE Gas, Inc. CIK: 1587732 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0001587732-19-000013`
Period End Date	20181231
Filing Date	20190220
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	ogs-20181231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 95 Income Statement 91 Cash Flow Statement 118 Stockholders Equity 34 Comprehensive Income 23

Balance Sheet 95 line items

Line Item	Tag	Value	Unit	Period
Common Stock, Par or Stated Value Per Share	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common Stock, Par or Stated Value Per Share	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common Stock, Shares Authorized	`CommonStockSharesAuthorized`	250.00M	shares	Point-in-time
Common Stock, Shares Authorized	`CommonStockSharesAuthorized`	250.00M	shares	Point-in-time
Common Stock, Shares, Issued	`CommonStockSharesIssued`	52.60M	shares	Point-in-time
Common Stock, Shares, Issued	`CommonStockSharesIssued`	52.60M	shares	Point-in-time
Property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$6.07B	USD	Point-in-time
Property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$5.71B	USD	Point-in-time
Accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.71B	USD	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	52.31M	shares	Point-in-time
Accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.79B	USD	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	52.56M	shares	Point-in-time
Treasury Stock, Shares	`TreasuryStockShares`	33,103.00	shares	Point-in-time
Net property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$4.01B	USD	Point-in-time
Treasury Stock, Shares	`TreasuryStockShares`	285,489.00	shares	Point-in-time
Net property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$4.28B	USD	Point-in-time
Debt issuance costs	`DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet`	$8.03M	USD	Point-in-time
Debt issuance costs	`DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet`	$11.46M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$14.41M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$21.32M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$14.66M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$2.43M	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$295.42M	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$298.77M	USD	Point-in-time
Materials and supplies	`MaterialsSuppliesAndOther`	$39.67M	USD	Point-in-time
Materials and supplies	`MaterialsSuppliesAndOther`	$44.33M	USD	Point-in-time
Natural gas in storage	`PublicUtilitiesInventory`	$130.15M	USD	Point-in-time
Natural gas in storage	`PublicUtilitiesInventory`	$107.30M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$54.42M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$88.18M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$20.50M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$17.81M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$588.99M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$543.29M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$437.48M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$405.19M	USD	Point-in-time
Goodwill	`Goodwill`	$157.95M	USD	Point-in-time
Goodwill	`Goodwill`	$157.95M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$46.21M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$47.16M	USD	Point-in-time
Total goodwill and other assets	`Totalgoodwillandotherassets`	$641.64M	USD	Point-in-time
Total goodwill and other assets	`Totalgoodwillandotherassets`	$610.30M	USD	Point-in-time
Total assets	`Assets`	$5.47B	USD	Point-in-time
Total assets	`Assets`	$5.21B	USD	Point-in-time
Common stock, $0.01 par value: authorized 250,000,000 shares; issued 52,598,005 shares and outstanding 52,564,902 shares at December 31, 2018; issued 52,598,005 shares and outstanding 52,312,516 shares at December 31, 2017	`CommonStockValue`	$526.00K	USD	Point-in-time
Common stock, $0.01 par value: authorized 250,000,000 shares; issued 52,598,005 shares and outstanding 52,564,902 shares at December 31, 2018; issued 52,598,005 shares and outstanding 52,312,516 shares at December 31, 2017	`CommonStockValue`	$526.00K	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapital`	$1.74B	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapital`	$1.73B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$320.87M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$246.12M	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-4.09M	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.49M	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-4.71M	USD	Point-in-time
Treasury stock, at cost: 33,103 shares at December 31, 2018 and 285,489 shares at December 31, 2017	`TreasuryStockValue`	$18.50M	USD	Point-in-time
Treasury stock, at cost: 33,103 shares at December 31, 2018 and 285,489 shares at December 31, 2017	`TreasuryStockValue`	$2.15M	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.84B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.96B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.89B	USD	Point-in-time
Total equity	`StockholdersEquity`	$2.04B	USD	Point-in-time
Long-term debt, excluding current maturities, and net of issuance costs of $11,457 and $8,033, respectively	`LongTermDebtNoncurrent`	$1.29B	USD	Point-in-time
Long-term debt, excluding current maturities, and net of issuance costs of $11,457 and $8,033, respectively	`LongTermDebtNoncurrent`	$1.19B	USD	Point-in-time
Total equity and long-term debt	`CapitalizationLongtermDebtAndEquity`	$3.33B	USD	Point-in-time
Total equity and long-term debt	`CapitalizationLongtermDebtAndEquity`	$3.15B	USD	Point-in-time
Notes payable	`CommercialPaper`	$299.50M	USD	Point-in-time
Notes payable	`CommercialPaper`	$357.21M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$143.68M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$174.51M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$18.78M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$18.92M	USD	Point-in-time
Accrued taxes other than income	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$41.32M	USD	Point-in-time
Accrued taxes other than income	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$47.64M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$30.29M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$30.06M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$61.18M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$60.81M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$9.44M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$48.39M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$18.45M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$12.03M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$673.33M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$698.89M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$599.95M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$652.43M	USD	Point-in-time
Regulatory Liability, Noncurrent	`RegulatoryLiabilityNoncurrent`	$520.87M	USD	Point-in-time
Regulatory Liability, Noncurrent	`RegulatoryLiabilityNoncurrent`	$519.42M	USD	Point-in-time
Employee benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$172.94M	USD	Point-in-time
Employee benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$178.72M	USD	Point-in-time
Other deferred credits	`OtherLiabilitiesNoncurrent`	$89.60M	USD	Point-in-time
Other deferred credits	`OtherLiabilitiesNoncurrent`	$87.78M	USD	Point-in-time
Total deferred credits and other liabilities	`TotalDeferredCreditsAndOtherLiabilities`	$1.44B	USD	Point-in-time
Total deferred credits and other liabilities	`TotalDeferredCreditsAndOtherLiabilities`	$1.38B	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.47B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.21B	USD	Point-in-time

Income Statement 91 line items

Line Item	Tag	Value	Unit	Period
Revenues	`Revenues`	$1.63B	USD	Annual
Revenues	`Revenues`	$1.43B	USD	Annual
Revenues	`Revenues`	$1.54B	USD	Annual
Cost of natural gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$614.50M	USD	Annual
Cost of natural gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$541.80M	USD	Annual
Cost of natural gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$714.64M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$411.70M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$397.31M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$399.29M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$160.09M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$143.83M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$151.89M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$55.34M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$58.88M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$57.23M	USD	Annual
Total operating expenses	`UtilitiesOperatingExpense`	$608.40M	USD	Annual
Total operating expenses	`UtilitiesOperatingExpense`	$630.67M	USD	Annual
Total operating expenses	`UtilitiesOperatingExpense`	$596.49M	USD	Annual
Operating income	`OperatingIncomeLoss`	$80.86M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$288.95M	USD	Annual
Operating income	`OperatingIncomeLoss`	$48.37M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$36.24M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$288.43M	USD	Annual
Operating income	`OperatingIncomeLoss`	$129.44M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$130.29M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$93.83M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$41.04M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$45.09M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$316.73M	USD	Annual
Other expense, net	`OtherNonoperatingIncomeExpense`	$-14.53M	USD	Annual
Other expense, net	`OtherNonoperatingIncomeExpense`	$-11.36M	USD	Annual
Other expense, net	`OtherNonoperatingIncomeExpense`	$-19.87M	USD	Annual
Interest expense, net	`InterestExpense`	$46.06M	USD	Annual
Interest expense, net	`InterestExpense`	$43.74M	USD	Annual
Interest expense, net	`InterestExpense`	$51.30M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$225.34M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$256.14M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$225.76M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$93.14M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$85.24M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$53.53M	USD	Annual
Net income	`NetIncomeLoss`	$44.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$47.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$90.83M	USD	1 Quarter
Net income	`NetIncomeLoss`	$18.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$163.00M	USD	Annual
Net income	`NetIncomeLoss`	$16.28M	USD	1 Quarter
Net income	`NetIncomeLoss`	$76.46M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.42M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.62M	USD	1 Quarter
Net income	`NetIncomeLoss`	$140.09M	USD	Annual
Net income	`NetIncomeLoss`	$172.23M	USD	Annual
Basic	`EarningsPerShareBasic`	$0.85	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$3.27	USD	Annual
Basic	`EarningsPerShareBasic`	$0.39	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.36	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.90	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.31	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$3.10	USD	Annual
Basic	`EarningsPerShareBasic`	$2.67	USD	Annual
Basic	`EarningsPerShareBasic`	$0.39	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.73	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.45	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.31	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.72	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$3.08	USD	Annual
Diluted	`EarningsPerShareDiluted`	$0.39	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$3.25	USD	Annual
Diluted	`EarningsPerShareDiluted`	$0.84	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$2.65	USD	Annual
Diluted	`EarningsPerShareDiluted`	$0.39	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.44	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.36	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.89	USD	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	52.45M	shares	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	52.69M	shares	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	52.53M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	52.98M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	52.96M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.03M	shares	Annual
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$1.84	USD	Annual
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.42	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$1.68	USD	Annual
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.46	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.42	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.46	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.42	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.46	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$1.40	USD	Annual
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.42	USD	1 Quarter
Dividends declared per share of stock	`CommonStockDividendsPerShareCashPaid`	$0.46	USD	1 Quarter

Cash Flow Statement 118 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$44.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$47.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$90.83M	USD	1 Quarter
Net income	`NetIncomeLoss`	$18.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$163.00M	USD	Annual
Net income	`NetIncomeLoss`	$16.28M	USD	1 Quarter
Net income	`NetIncomeLoss`	$76.46M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.42M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.62M	USD	1 Quarter
Net income	`NetIncomeLoss`	$140.09M	USD	Annual
Net income	`NetIncomeLoss`	$172.23M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$160.09M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$143.83M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$151.89M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$86.79M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$92.39M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$53.24M	USD	Annual
Share-based compensation expense	`ShareBasedCompensation`	$8.88M	USD	Annual
Share-based compensation expense	`ShareBasedCompensation`	$11.22M	USD	Annual
Share-based compensation expense	`ShareBasedCompensation`	$8.20M	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$7.32M	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$5.43M	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$8.51M	USD	Annual
Accounts receivable	`IncreaseDecreaseInReceivables`	$15.15M	USD	Annual
Accounts receivable	`IncreaseDecreaseInReceivables`	$5.16M	USD	Annual
Accounts receivable	`IncreaseDecreaseInReceivables`	$80.03M	USD	Annual
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$5.59M	USD	Annual
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$759.00K	USD	Annual
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$4.66M	USD	Annual
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	-	USD	Annual
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-37.48M	USD	Annual
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	-	USD	Annual
Natural gas in storage	`IncreaseDecreaseInInventories`	$-16.72M	USD	Annual
Natural gas in storage	`IncreaseDecreaseInInventories`	$4.72M	USD	Annual
Natural gas in storage	`IncreaseDecreaseInInventories`	$-22.86M	USD	Annual
Asset removal costs	`PaymentsForRemovalCosts`	$52.85M	USD	Annual
Asset removal costs	`PaymentsForRemovalCosts`	$52.38M	USD	Annual
Asset removal costs	`PaymentsForRemovalCosts`	$53.43M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$36.88M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$27.60M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.95M	USD	Annual
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$148.00K	USD	Annual
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-19.00K	USD	Annual
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-78.00K	USD	Annual
Accrued taxes other than income	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$6.32M	USD	Annual
Accrued taxes other than income	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$5.32M	USD	Annual
Accrued taxes other than income	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-1.25M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$236.00K	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-8.54M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$7.13M	USD	Annual
Customer deposits	`IncreaseDecreaseInCustomerDeposits`	$884.00K	USD	Annual
Customer deposits	`IncreaseDecreaseInCustomerDeposits`	$372.00K	USD	Annual
Customer deposits	`IncreaseDecreaseInCustomerDeposits`	$-398.00K	USD	Annual
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-109.44M	USD	Annual
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-29.25M	USD	Annual
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$49.47M	USD	Annual
Employee benefit obligation	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-50.10M	USD	Annual
Employee benefit obligation	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-25.67M	USD	Annual
Employee benefit obligation	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-118.09M	USD	Annual
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-1.95M	USD	Annual
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-33.14M	USD	Annual
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$10.35M	USD	Annual
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$290.59M	USD	Annual
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$253.80M	USD	Annual
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$467.69M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$356.36M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$394.45M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$309.07M	USD	Annual
Other	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$492.00K	USD	Annual
Other	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	Annual
Other	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$618.00K	USD	Annual
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-394.45M	USD	Annual
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-355.74M	USD	Annual
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-308.58M	USD	Annual
Borrowings (repayment) on notes payable, net	`ProceedsFromRepaymentsOfCommercialPaper`	$132.50M	USD	Annual
Borrowings (repayment) on notes payable, net	`ProceedsFromRepaymentsOfCommercialPaper`	$-57.72M	USD	Annual
Borrowings (repayment) on notes payable, net	`ProceedsFromRepaymentsOfCommercialPaper`	$212.22M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$24.07M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$17.51M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Proceeds from Issuance of Long-term Debt	`ProceedsFromIssuanceOfLongTermDebt`	$395.65M	USD	Annual
Proceeds from Issuance of Long-term Debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from Issuance of Long-term Debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Payments of Financing Costs	`PaymentsOfFinancingCosts`	$4.32M	USD	Annual
Payments of Financing Costs	`PaymentsOfFinancingCosts`	-	USD	Annual
Payments of Financing Costs	`PaymentsOfFinancingCosts`	-	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$4.80M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$4.02M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$4.46M	USD	Annual
Repayments of Long-term Debt	`RepaymentsOfLongTermDebt`	$300.00M	USD	Annual
Repayments of Long-term Debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Repayments of Long-term Debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Dividends paid	`PaymentsOfDividends`	$73.21M	USD	Annual
Dividends paid	`PaymentsOfDividends`	$87.95M	USD	Annual
Dividends paid	`PaymentsOfDividends`	$96.59M	USD	Annual
Tax withholdings related to net share settlements of stock compensation	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$-8.15M	USD	Annual
Tax withholdings related to net share settlements of stock compensation	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$-9.02M	USD	Annual
Tax withholdings related to net share settlements of stock compensation	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$-9.52M	USD	Annual
Cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$30.22M	USD	Annual
Cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$101.69M	USD	Annual
Cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-66.33M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$12.23M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-250.00K	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$6.91M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$14.41M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$21.32M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$14.66M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$2.43M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$14.41M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$21.32M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$14.66M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$2.43M	USD	Point-in-time
Cash paid for interest, net of amounts capitalized	`InterestPaid`	$49.37M	USD	Annual
Cash paid for interest, net of amounts capitalized	`InterestPaid`	$42.13M	USD	Annual
Cash paid for interest, net of amounts capitalized	`InterestPaid`	$44.44M	USD	Annual
Cash received for income taxes, net	`IncomeTaxesPaidNet`	$-1.39M	USD	Annual
Cash received for income taxes, net	`IncomeTaxesPaidNet`	$-35.70M	USD	Annual
Cash received for income taxes, net	`IncomeTaxesPaidNet`	$800.00K	USD	Annual

Stockholders Equity 34 line items

Line Item	Tag	Value	Unit	Period
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	`AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet`	$-10.98M	USD	Annual
Common Stock, Dividends, Declared, Annualized Basis	`CommonStockDividendsDeclaredAnnualizedBasis`	$1.40	USD	Annual
Common Stock, Dividends, Declared, Annualized Basis	`CommonStockDividendsDeclaredAnnualizedBasis`	$1.20	USD	Annual
Common Stock, Dividends, Declared, Annualized Basis	`CommonStockDividendsDeclaredAnnualizedBasis`	$1.68	USD	Annual
Equity, beginning balance	`StockholdersEquity`	$1.84B	USD	Point-in-time
Equity, beginning balance	`StockholdersEquity`	$1.96B	USD	Point-in-time
Equity, beginning balance	`StockholdersEquity`	$1.89B	USD	Point-in-time
Equity, beginning balance	`StockholdersEquity`	$2.04B	USD	Point-in-time
Net income	`NetIncomeLoss`	$44.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$47.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$90.83M	USD	1 Quarter
Net income	`NetIncomeLoss`	$18.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$163.00M	USD	Annual
Net income	`NetIncomeLoss`	$16.28M	USD	1 Quarter
Net income	`NetIncomeLoss`	$76.46M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.42M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.62M	USD	1 Quarter
Net income	`NetIncomeLoss`	$140.09M	USD	Annual
Net income	`NetIncomeLoss`	$172.23M	USD	Annual
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-778.00K	USD	Annual
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-314.00K	USD	Annual
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$1.41M	USD	Annual
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$24.07M	USD	Annual
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$17.51M	USD	Annual
Common stock issued, value	`StockIssuedDuringPeriodValueNewIssues`	$5.40M	USD	Annual
Common stock issued, value	`StockIssuedDuringPeriodValueNewIssues`	$4.19M	USD	Annual
Common stock issued, value	`StockIssuedDuringPeriodValueNewIssues`	$4.22M	USD	Annual
Common stock dividends	`DividendsCommonStock`	$96.59M	USD	Annual
Common stock dividends	`DividendsCommonStock`	$87.95M	USD	Annual
Common stock dividends	`DividendsCommonStock`	$73.21M	USD	Annual
Equity, ending balance	`StockholdersEquity`	$1.84B	USD	Point-in-time
Equity, ending balance	`StockholdersEquity`	$1.96B	USD	Point-in-time
Equity, ending balance	`StockholdersEquity`	$1.89B	USD	Point-in-time
Equity, ending balance	`StockholdersEquity`	$2.04B	USD	Point-in-time

Comprehensive Income 23 line items

Line Item	Tag	Value	Unit	Period
Pension and other postretirement benefit plans, Tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-483.00K	USD	Annual
Pension and other postretirement benefit plans, Tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$197.00K	USD	Annual
Pension and other postretirement benefit plans, Tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$486.00K	USD	Annual
Net income	`NetIncomeLoss`	$44.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$47.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$90.83M	USD	1 Quarter
Net income	`NetIncomeLoss`	$18.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$163.00M	USD	Annual
Net income	`NetIncomeLoss`	$16.28M	USD	1 Quarter
Net income	`NetIncomeLoss`	$76.46M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.42M	USD	1 Quarter
Net income	`NetIncomeLoss`	$20.62M	USD	1 Quarter
Net income	`NetIncomeLoss`	$140.09M	USD	Annual
Net income	`NetIncomeLoss`	$172.23M	USD	Annual
Change in pension and other postretirement benefit plans liability, net of tax of $(848), $486, and $197, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.41M	USD	Annual
Change in pension and other postretirement benefit plans liability, net of tax of $(848), $486, and $197, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$314.00K	USD	Annual
Change in pension and other postretirement benefit plans liability, net of tax of $(848), $486, and $197, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$778.00K	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-778.00K	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-314.00K	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.41M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$139.78M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$162.22M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$173.64M	USD	Annual

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