10-Q Filing

Northwest Natural Holding Co CIK: 1733998 Q1 2025

Filing Information

Form Type	10-Q
Accession Number	`0001733998-25-000094`
Period End Date	20250331
Filing Date	20250506
Fiscal Year	2025
Fiscal Period	Q1
XBRL Instance	nwn-20250331_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 294 Income Statement 104 Cash Flow Statement 160 Stockholders Equity 28

Balance Sheet 294 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$100.05M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$100.05M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$72.38M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$72.38M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$38.49M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$38.49M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$128.43M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$128.43M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$124.48M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$124.48M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$154.75M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$154.75M	USD	Point-in-time
Accrued unbilled revenue	`UnbilledReceivablesCurrent`	$57.91M	USD	Point-in-time
Accrued unbilled revenue	`UnbilledReceivablesCurrent`	$57.91M	USD	Point-in-time
Accrued unbilled revenue	`UnbilledReceivablesCurrent`	$94.40M	USD	Point-in-time
Accrued unbilled revenue	`UnbilledReceivablesCurrent`	$94.40M	USD	Point-in-time
Accrued unbilled revenue	`UnbilledReceivablesCurrent`	$59.94M	USD	Point-in-time
Accrued unbilled revenue	`UnbilledReceivablesCurrent`	$59.94M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.18M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.18M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$3.47M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$3.47M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.43M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.43M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$127.67M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$127.67M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$130.12M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$130.12M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$88.62M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$88.62M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsCurrent`	$5.75M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsCurrent`	$5.75M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsCurrent`	$6.63M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsCurrent`	$6.63M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsCurrent`	$4.36M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsCurrent`	$4.36M	USD	Point-in-time
Inventories	`PublicUtilitiesInventory`	$99.87M	USD	Point-in-time
Inventories	`PublicUtilitiesInventory`	$99.87M	USD	Point-in-time
Inventories	`PublicUtilitiesInventory`	$106.95M	USD	Point-in-time
Inventories	`PublicUtilitiesInventory`	$106.95M	USD	Point-in-time
Inventories	`PublicUtilitiesInventory`	$90.33M	USD	Point-in-time
Inventories	`PublicUtilitiesInventory`	$90.33M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$46.27M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$46.27M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$49.90M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$49.90M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$60.18M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$60.18M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$537.71M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$537.71M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$557.77M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$557.77M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$539.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$539.90M	USD	Point-in-time
Property, plant, and equipment	`PropertyPlantAndEquipmentGross`	$5.27B	USD	Point-in-time
Property, plant, and equipment	`PropertyPlantAndEquipmentGross`	$5.27B	USD	Point-in-time
Property, plant, and equipment	`PropertyPlantAndEquipmentGross`	$4.92B	USD	Point-in-time
Property, plant, and equipment	`PropertyPlantAndEquipmentGross`	$4.92B	USD	Point-in-time
Property, plant, and equipment	`PropertyPlantAndEquipmentGross`	$4.66B	USD	Point-in-time
Property, plant, and equipment	`PropertyPlantAndEquipmentGross`	$4.66B	USD	Point-in-time
Less: Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.25B	USD	Point-in-time
Less: Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.25B	USD	Point-in-time
Less: Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.27B	USD	Point-in-time
Less: Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.27B	USD	Point-in-time
Less: Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.22B	USD	Point-in-time
Less: Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.22B	USD	Point-in-time
Total property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$4.00B	USD	Point-in-time
Total property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$4.00B	USD	Point-in-time
Total property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$3.67B	USD	Point-in-time
Total property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$3.67B	USD	Point-in-time
Total property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$3.44B	USD	Point-in-time
Total property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$3.44B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$382.50M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$382.50M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$309.17M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$309.17M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$371.26M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$371.26M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsNoncurrent`	$535.00K	USD	Point-in-time
Derivative instruments	`DerivativeAssetsNoncurrent`	$535.00K	USD	Point-in-time
Derivative instruments	`DerivativeAssetsNoncurrent`	$864.00K	USD	Point-in-time
Derivative instruments	`DerivativeAssetsNoncurrent`	$864.00K	USD	Point-in-time
Derivative instruments	`DerivativeAssetsNoncurrent`	$3.10M	USD	Point-in-time
Derivative instruments	`DerivativeAssetsNoncurrent`	$3.10M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$84.08M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$84.08M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$82.24M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$82.24M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$82.66M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$82.66M	USD	Point-in-time
Operating lease right of use asset, net	`OperatingLeaseRightOfUseAsset`	$68.63M	USD	Point-in-time
Operating lease right of use asset, net	`OperatingLeaseRightOfUseAsset`	$68.63M	USD	Point-in-time
Operating lease right of use asset, net	`OperatingLeaseRightOfUseAsset`	$70.55M	USD	Point-in-time
Operating lease right of use asset, net	`OperatingLeaseRightOfUseAsset`	$70.55M	USD	Point-in-time
Operating lease right of use asset, net	`OperatingLeaseRightOfUseAsset`	$70.45M	USD	Point-in-time
Operating lease right of use asset, net	`OperatingLeaseRightOfUseAsset`	$70.45M	USD	Point-in-time
Assets under sales-type leases	`NetInvestmentInLeaseNoncurrent`	$128.84M	USD	Point-in-time
Assets under sales-type leases	`NetInvestmentInLeaseNoncurrent`	$128.84M	USD	Point-in-time
Assets under sales-type leases	`NetInvestmentInLeaseNoncurrent`	$125.65M	USD	Point-in-time
Assets under sales-type leases	`NetInvestmentInLeaseNoncurrent`	$125.65M	USD	Point-in-time
Assets under sales-type leases	`NetInvestmentInLeaseNoncurrent`	$124.62M	USD	Point-in-time
Assets under sales-type leases	`NetInvestmentInLeaseNoncurrent`	$124.62M	USD	Point-in-time
Goodwill	`Goodwill`	$162.97M	USD	Point-in-time
Goodwill	`Goodwill`	$162.97M	USD	Point-in-time
Goodwill	`Goodwill`	$354.53M	USD	Point-in-time
Goodwill	`Goodwill`	$354.53M	USD	Point-in-time
Goodwill	`Goodwill`	$183.80M	USD	Point-in-time
Goodwill	`Goodwill`	$183.80M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$111.12M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$111.12M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$160.75M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$160.75M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$160.86M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$160.86M	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$4.31B	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$4.31B	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$4.68B	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$4.68B	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$5.17B	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$5.17B	USD	Point-in-time
Total assets	`Assets`	$4.85B	USD	Point-in-time
Total assets	`Assets`	$4.85B	USD	Point-in-time
Total assets	`Assets`	$5.23B	USD	Point-in-time
Total assets	`Assets`	$5.23B	USD	Point-in-time
Total assets	`Assets`	$5.71B	USD	Point-in-time
Total assets	`Assets`	$5.71B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$170.11M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$170.11M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$94.70M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$94.70M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$81.10M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$81.10M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$36.84M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$36.84M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$869.00K	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$869.00K	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$30.79M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$30.79M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$133.27M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$133.27M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$107.89M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$107.89M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$132.81M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$132.81M	USD	Point-in-time
Taxes accrued	`AccruedIncomeTaxesCurrent`	$24.11M	USD	Point-in-time
Taxes accrued	`AccruedIncomeTaxesCurrent`	$24.11M	USD	Point-in-time
Taxes accrued	`AccruedIncomeTaxesCurrent`	$27.03M	USD	Point-in-time
Taxes accrued	`AccruedIncomeTaxesCurrent`	$27.03M	USD	Point-in-time
Taxes accrued	`AccruedIncomeTaxesCurrent`	$16.18M	USD	Point-in-time
Taxes accrued	`AccruedIncomeTaxesCurrent`	$16.18M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$16.30M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$16.30M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$16.36M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$16.36M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$18.22M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$18.22M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$116.18M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$116.18M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$77.66M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$77.66M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$111.05M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$111.05M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesCurrent`	$52.68M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesCurrent`	$52.68M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesCurrent`	$75.27M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesCurrent`	$75.27M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesCurrent`	$26.12M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesCurrent`	$26.12M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$2.05M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$2.05M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$2.66M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$2.66M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.84M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.84M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$87.16M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$87.16M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$82.96M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$82.96M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$89.11M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$89.11M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$468.34M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$468.34M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$649.02M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$649.02M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$513.96M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$513.96M	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$1.68B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$1.68B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$2.19B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$2.19B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$1.57B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$1.57B	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$394.07M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$394.07M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$397.15M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$397.15M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$424.34M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$424.34M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$700.70M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$700.70M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$730.12M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$730.12M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$730.08M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$730.08M	USD	Point-in-time
Pension and other postretirement benefit liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$157.81M	USD	Point-in-time
Pension and other postretirement benefit liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$157.81M	USD	Point-in-time
Pension and other postretirement benefit liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$127.85M	USD	Point-in-time
Pension and other postretirement benefit liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$127.85M	USD	Point-in-time
Pension and other postretirement benefit liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$130.40M	USD	Point-in-time
Pension and other postretirement benefit liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$130.40M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesNoncurrent`	$12.74M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesNoncurrent`	$12.74M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesNoncurrent`	$8.22M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesNoncurrent`	$8.22M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesNoncurrent`	$13.31M	USD	Point-in-time
Derivative instruments	`DerivativeLiabilitiesNoncurrent`	$13.31M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$75.91M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$75.91M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$77.23M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$77.23M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$77.05M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$77.05M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$120.22M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$120.22M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$173.69M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$173.69M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$175.92M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$175.92M	USD	Point-in-time
Total deferred credits and other non-current liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.46B	USD	Point-in-time
Total deferred credits and other non-current liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.46B	USD	Point-in-time
Total deferred credits and other non-current liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.52B	USD	Point-in-time
Total deferred credits and other non-current liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.52B	USD	Point-in-time
Total deferred credits and other non-current liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.54B	USD	Point-in-time
Total deferred credits and other non-current liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.54B	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock	`CommonStockValue`	$992.28M	USD	Point-in-time
Common stock	`CommonStockValue`	$992.28M	USD	Point-in-time
Common stock	`CommonStockValue`	$989.35M	USD	Point-in-time
Common stock	`CommonStockValue`	$989.35M	USD	Point-in-time
Common stock	`CommonStockValue`	$905.15M	USD	Point-in-time
Common stock	`CommonStockValue`	$905.15M	USD	Point-in-time
Shares Authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Shares Authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Shares Authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Shares Authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Shares Authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Shares Authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Shares outstanding (in shares)	`CommonStockSharesOutstanding`	38.03M	shares	Point-in-time
Shares outstanding (in shares)	`CommonStockSharesOutstanding`	38.03M	shares	Point-in-time
Shares outstanding (in shares)	`CommonStockSharesOutstanding`	40.31M	shares	Point-in-time
Shares outstanding (in shares)	`CommonStockSharesOutstanding`	40.31M	shares	Point-in-time
Shares outstanding (in shares)	`CommonStockSharesOutstanding`	40.22M	shares	Point-in-time
Shares outstanding (in shares)	`CommonStockSharesOutstanding`	40.22M	shares	Point-in-time
Shares issued (in shares)	`CommonStockSharesIssued`	40.31M	shares	Point-in-time
Shares issued (in shares)	`CommonStockSharesIssued`	40.31M	shares	Point-in-time
Shares issued (in shares)	`CommonStockSharesIssued`	40.22M	shares	Point-in-time
Shares issued (in shares)	`CommonStockSharesIssued`	40.22M	shares	Point-in-time
Shares issued (in shares)	`CommonStockSharesIssued`	38.03M	shares	Point-in-time
Shares issued (in shares)	`CommonStockSharesIssued`	38.03M	shares	Point-in-time
Par Value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Par Value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Par Value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Par Value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Par Value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Par Value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$402.93M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$402.93M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$445.06M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$445.06M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$470.80M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$470.80M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.90M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.90M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.83M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.83M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.86M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.86M	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.39B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.39B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.46B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.46B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.34B	USD	Point-in-time
Total equity	`StockholdersEquity`	$1.34B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.71B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.71B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$4.85B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$4.85B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.23B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.23B	USD	Point-in-time

Income Statement 104 line items

Line Item	Tag	Value	Unit	Period
Operating revenues	`Revenues`	$433.47M	USD	1 Quarter
Operating revenues	`Revenues`	$433.47M	USD	1 Quarter
Operating revenues	`Revenues`	$494.28M	USD	1 Quarter
Operating revenues	`Revenues`	$494.28M	USD	1 Quarter
Cost of gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$172.99M	USD	1 Quarter
Cost of gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$172.99M	USD	1 Quarter
Cost of gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$175.72M	USD	1 Quarter
Cost of gas	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$175.72M	USD	1 Quarter
Operations and maintenance	`OperatingCostsAndExpenses`	$83.68M	USD	1 Quarter
Operations and maintenance	`OperatingCostsAndExpenses`	$83.68M	USD	1 Quarter
Operations and maintenance	`OperatingCostsAndExpenses`	$73.61M	USD	1 Quarter
Operations and maintenance	`OperatingCostsAndExpenses`	$73.61M	USD	1 Quarter
Environmental remediation	`EnvironmentalRemediationExpense`	$5.75M	USD	1 Quarter
Environmental remediation	`EnvironmentalRemediationExpense`	$5.75M	USD	1 Quarter
Environmental remediation	`EnvironmentalRemediationExpense`	$6.25M	USD	1 Quarter
Environmental remediation	`EnvironmentalRemediationExpense`	$6.25M	USD	1 Quarter
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.47M	USD	1 Quarter
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.47M	USD	1 Quarter
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.77M	USD	1 Quarter
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.77M	USD	1 Quarter
Revenue taxes	`ExciseTaxes`	$18.24M	USD	1 Quarter
Revenue taxes	`ExciseTaxes`	$18.24M	USD	1 Quarter
Revenue taxes	`ExciseTaxes`	$19.41M	USD	1 Quarter
Revenue taxes	`ExciseTaxes`	$19.41M	USD	1 Quarter
Depreciation	`DepreciationAndAmortization`	$40.50M	USD	1 Quarter
Depreciation	`DepreciationAndAmortization`	$40.50M	USD	1 Quarter
Depreciation	`DepreciationAndAmortization`	$33.10M	USD	1 Quarter
Depreciation	`DepreciationAndAmortization`	$33.10M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$1.76M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$1.76M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$1.33M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$1.33M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$323.64M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$323.64M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$339.93M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$339.93M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$109.83M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$109.83M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$154.35M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$154.35M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-2.52M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-2.52M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-1.13M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-1.13M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-20.53M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-20.53M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-29.39M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-29.39M	USD	1 Quarter
Income before income taxes	`IncomeLossAttributableToParent`	$88.16M	USD	1 Quarter
Income before income taxes	`IncomeLossAttributableToParent`	$88.16M	USD	1 Quarter
Income before income taxes	`IncomeLossAttributableToParent`	$122.44M	USD	1 Quarter
Income before income taxes	`IncomeLossAttributableToParent`	$122.44M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$24.34M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$24.34M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$34.53M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$34.53M	USD	1 Quarter
Net income	`NetIncomeLoss`	$87.92M	USD	1 Quarter
Net income	`NetIncomeLoss`	$87.92M	USD	1 Quarter
Net income	`NetIncomeLoss`	$63.82M	USD	1 Quarter
Net income	`NetIncomeLoss`	$63.82M	USD	1 Quarter
Change in employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-249.00K	USD	1 Quarter
Change in employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-249.00K	USD	1 Quarter
Change in employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Change in employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax`	$127.00K	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax`	$127.00K	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax`	$175.00K	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, net of taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax`	$175.00K	USD	1 Quarter
Derivative, Gain (Loss) on Derivative, Net	`DerivativeGainLossOnDerivativeNet`	$346.00K	USD	1 Quarter
Derivative, Gain (Loss) on Derivative, Net	`DerivativeGainLossOnDerivativeNet`	$346.00K	USD	1 Quarter
Derivative, Gain (Loss) on Derivative, Net	`DerivativeGainLossOnDerivativeNet`	$-130.00K	USD	1 Quarter
Derivative, Gain (Loss) on Derivative, Net	`DerivativeGainLossOnDerivativeNet`	$-130.00K	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$87.96M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$87.96M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$64.05M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$64.05M	USD	1 Quarter
Change in employee benefit plan liability, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-66.00K	USD	1 Quarter
Change in employee benefit plan liability, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-66.00K	USD	1 Quarter
Change in employee benefit plan liability, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	-	USD	1 Quarter
Change in employee benefit plan liability, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	-	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$46.00K	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$46.00K	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$25.00K	USD	1 Quarter
Amortization of non-qualified employee benefit plan liability, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$25.00K	USD	1 Quarter
Unrealized Loss on Derivative, tax	`UnrealizedGainLossOnDerivativeTax`	$-124.00K	USD	1 Quarter
Unrealized Loss on Derivative, tax	`UnrealizedGainLossOnDerivativeTax`	$-124.00K	USD	1 Quarter
Unrealized Loss on Derivative, tax	`UnrealizedGainLossOnDerivativeTax`	$47.00K	USD	1 Quarter
Unrealized Loss on Derivative, tax	`UnrealizedGainLossOnDerivativeTax`	$47.00K	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	37.77M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	37.77M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	40.24M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	40.24M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	40.30M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	40.30M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	37.80M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	37.80M	shares	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$2.18	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$2.18	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.69	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.69	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$2.18	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$2.18	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.69	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.69	USD	1 Quarter

Cash Flow Statement 160 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$87.92M	USD	1 Quarter
Net income	`NetIncomeLoss`	$87.92M	USD	1 Quarter
Net income	`NetIncomeLoss`	$63.82M	USD	1 Quarter
Net income	`NetIncomeLoss`	$63.82M	USD	1 Quarter
Depreciation	`Depreciation`	$40.50M	USD	1 Quarter
Depreciation	`Depreciation`	$40.50M	USD	1 Quarter
Depreciation	`Depreciation`	$33.10M	USD	1 Quarter
Depreciation	`Depreciation`	$33.10M	USD	1 Quarter
Amortization	`AdjustmentForAmortization`	$5.58M	USD	1 Quarter
Amortization	`AdjustmentForAmortization`	$5.58M	USD	1 Quarter
Amortization	`AdjustmentForAmortization`	$4.76M	USD	1 Quarter
Amortization	`AdjustmentForAmortization`	$4.76M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$24.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$24.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$8.04M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$8.04M	USD	1 Quarter
Qualified defined benefit pension plan expense	`PensionExpense`	$1.08M	USD	1 Quarter
Qualified defined benefit pension plan expense	`PensionExpense`	$1.08M	USD	1 Quarter
Qualified defined benefit pension plan expense	`PensionExpense`	$2.72M	USD	1 Quarter
Qualified defined benefit pension plan expense	`PensionExpense`	$2.72M	USD	1 Quarter
Contributions to qualified defined benefit pension plans	`PensionContributions`	-	USD	1 Quarter
Contributions to qualified defined benefit pension plans	`PensionContributions`	-	USD	1 Quarter
Contributions to qualified defined benefit pension plans	`PensionContributions`	$2.61M	USD	1 Quarter
Contributions to qualified defined benefit pension plans	`PensionContributions`	$2.61M	USD	1 Quarter
Deferred environmental expenditures, net	`OtherIncreaseDecreaseInEnvironmentalLiabilities`	$-6.26M	USD	1 Quarter
Deferred environmental expenditures, net	`OtherIncreaseDecreaseInEnvironmentalLiabilities`	$-6.26M	USD	1 Quarter
Deferred environmental expenditures, net	`OtherIncreaseDecreaseInEnvironmentalLiabilities`	$-6.99M	USD	1 Quarter
Deferred environmental expenditures, net	`OtherIncreaseDecreaseInEnvironmentalLiabilities`	$-6.99M	USD	1 Quarter
Environmental remediation expense	`EnvironmentalRemediationExpense`	$5.75M	USD	1 Quarter
Environmental remediation expense	`EnvironmentalRemediationExpense`	$5.75M	USD	1 Quarter
Environmental remediation expense	`EnvironmentalRemediationExpense`	$6.25M	USD	1 Quarter
Environmental remediation expense	`EnvironmentalRemediationExpense`	$6.25M	USD	1 Quarter
Asset optimization revenue sharing bill credits	`AssetOptimizationRevenueSharingBillCredits`	$-20.61M	USD	1 Quarter
Asset optimization revenue sharing bill credits	`AssetOptimizationRevenueSharingBillCredits`	$-20.61M	USD	1 Quarter
Asset optimization revenue sharing bill credits	`AssetOptimizationRevenueSharingBillCredits`	$-15.55M	USD	1 Quarter
Asset optimization revenue sharing bill credits	`AssetOptimizationRevenueSharingBillCredits`	$-15.55M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-3.02M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-3.02M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-4.69M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-4.69M	USD	1 Quarter
Receivables, net	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-17.84M	USD	1 Quarter
Receivables, net	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-17.84M	USD	1 Quarter
Receivables, net	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-15.51M	USD	1 Quarter
Receivables, net	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-15.51M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-13.07M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-13.07M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-18.28M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-18.28M	USD	1 Quarter
Income and other taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$21.80M	USD	1 Quarter
Income and other taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$21.80M	USD	1 Quarter
Income and other taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$18.08M	USD	1 Quarter
Income and other taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$18.08M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-30.93M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-30.93M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$4.19M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$4.19M	USD	1 Quarter
Deferred gas costs	`IncreaseDecreaseInDeferredGasCost`	$8.81M	USD	1 Quarter
Deferred gas costs	`IncreaseDecreaseInDeferredGasCost`	$8.81M	USD	1 Quarter
Deferred gas costs	`IncreaseDecreaseInDeferredGasCost`	$16.96M	USD	1 Quarter
Deferred gas costs	`IncreaseDecreaseInDeferredGasCost`	$16.96M	USD	1 Quarter
Asset optimization revenue sharing	`IncreaseDecreaseInAssetOptimizationRevenueSharing`	$-4.36M	USD	1 Quarter
Asset optimization revenue sharing	`IncreaseDecreaseInAssetOptimizationRevenueSharing`	$-4.36M	USD	1 Quarter
Asset optimization revenue sharing	`IncreaseDecreaseInAssetOptimizationRevenueSharing`	$108.00K	USD	1 Quarter
Asset optimization revenue sharing	`IncreaseDecreaseInAssetOptimizationRevenueSharing`	$108.00K	USD	1 Quarter
Decoupling mechanism	`ChangeInDecouplingRegulatoryDeferral`	$-6.43M	USD	1 Quarter
Decoupling mechanism	`ChangeInDecouplingRegulatoryDeferral`	$-6.43M	USD	1 Quarter
Decoupling mechanism	`ChangeInDecouplingRegulatoryDeferral`	$1.42M	USD	1 Quarter
Decoupling mechanism	`ChangeInDecouplingRegulatoryDeferral`	$1.42M	USD	1 Quarter
Cloud-based software	`IncreaseDecreaseInCloudBasedSoftwareOperatingAssets`	$2.19M	USD	1 Quarter
Cloud-based software	`IncreaseDecreaseInCloudBasedSoftwareOperatingAssets`	$2.19M	USD	1 Quarter
Cloud-based software	`IncreaseDecreaseInCloudBasedSoftwareOperatingAssets`	$6.49M	USD	1 Quarter
Cloud-based software	`IncreaseDecreaseInCloudBasedSoftwareOperatingAssets`	$6.49M	USD	1 Quarter
Regulatory accounts	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-13.34M	USD	1 Quarter
Regulatory accounts	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-13.34M	USD	1 Quarter
Regulatory accounts	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-2.15M	USD	1 Quarter
Regulatory accounts	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-2.15M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$7.22M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$7.22M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-4.53M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-4.53M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$125.04M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$125.04M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$179.61M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$179.61M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$82.22M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$82.22M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$102.18M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$102.18M	USD	1 Quarter
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	1 Quarter
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	1 Quarter
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$270.49M	USD	1 Quarter
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$270.49M	USD	1 Quarter
Purchase of equity method investment	`PaymentsToAcquireEquityMethodInvestments`	$1.00M	USD	1 Quarter
Purchase of equity method investment	`PaymentsToAcquireEquityMethodInvestments`	$1.00M	USD	1 Quarter
Purchase of equity method investment	`PaymentsToAcquireEquityMethodInvestments`	$1.00M	USD	1 Quarter
Purchase of equity method investment	`PaymentsToAcquireEquityMethodInvestments`	$1.00M	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$1.30M	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$1.30M	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-729.00K	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-729.00K	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-82.49M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-82.49M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-374.98M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-374.98M	USD	1 Quarter
Proceeds from common stock issued, net	`ProceedsFromIssuanceOfCommonStock`	$961.00K	USD	1 Quarter
Proceeds from common stock issued, net	`ProceedsFromIssuanceOfCommonStock`	$961.00K	USD	1 Quarter
Proceeds from common stock issued, net	`ProceedsFromIssuanceOfCommonStock`	$12.22M	USD	1 Quarter
Proceeds from common stock issued, net	`ProceedsFromIssuanceOfCommonStock`	$12.22M	USD	1 Quarter
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$375.00M	USD	1 Quarter
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$375.00M	USD	1 Quarter
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$150.00M	USD	1 Quarter
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$150.00M	USD	1 Quarter
Long-term debt retired	`RepaymentsOfLongTermDebt`	$150.00M	USD	1 Quarter
Long-term debt retired	`RepaymentsOfLongTermDebt`	$150.00M	USD	1 Quarter
Long-term debt retired	`RepaymentsOfLongTermDebt`	$1.51M	USD	1 Quarter
Long-term debt retired	`RepaymentsOfLongTermDebt`	$1.51M	USD	1 Quarter
Changes in other short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-94.01M	USD	1 Quarter
Changes in other short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-94.01M	USD	1 Quarter
Changes in other short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$4.92M	USD	1 Quarter
Changes in other short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$4.92M	USD	1 Quarter
Cash dividend payments on common stock	`PaymentsOfDividendsCommonStock`	$19.10M	USD	1 Quarter
Cash dividend payments on common stock	`PaymentsOfDividendsCommonStock`	$19.10M	USD	1 Quarter
Cash dividend payments on common stock	`PaymentsOfDividendsCommonStock`	$17.75M	USD	1 Quarter
Cash dividend payments on common stock	`PaymentsOfDividendsCommonStock`	$17.75M	USD	1 Quarter
Payment of financing fees	`PaymentsOfFinancingCosts`	$4.31M	USD	1 Quarter
Payment of financing fees	`PaymentsOfFinancingCosts`	$4.31M	USD	1 Quarter
Payment of financing fees	`PaymentsOfFinancingCosts`	$748.00K	USD	1 Quarter
Payment of financing fees	`PaymentsOfFinancingCosts`	$748.00K	USD	1 Quarter
Shares withheld for tax purposes	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.31M	USD	1 Quarter
Shares withheld for tax purposes	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.31M	USD	1 Quarter
Shares withheld for tax purposes	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.54M	USD	1 Quarter
Shares withheld for tax purposes	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.54M	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.12M	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.12M	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-247.00K	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-247.00K	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$254.37M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$254.37M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.92M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.92M	USD	1 Quarter
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$89.26M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$89.26M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.98M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.98M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$106.98M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$106.98M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.62M	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.62M	USD	Point-in-time
Increase (decrease) in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$39.63M	USD	1 Quarter
Increase (decrease) in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$39.63M	USD	1 Quarter
Increase (decrease) in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$59.00M	USD	1 Quarter
Increase (decrease) in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$59.00M	USD	1 Quarter
Interest paid, net of capitalization	`InterestPaidNet`	$18.04M	USD	1 Quarter
Interest paid, net of capitalization	`InterestPaidNet`	$18.04M	USD	1 Quarter
Interest paid, net of capitalization	`InterestPaidNet`	$30.11M	USD	1 Quarter
Interest paid, net of capitalization	`InterestPaidNet`	$30.11M	USD	1 Quarter
Income taxes paid, net of refunds	`IncomeTaxesPaidNet`	$1.00M	USD	1 Quarter
Income taxes paid, net of refunds	`IncomeTaxesPaidNet`	$1.00M	USD	1 Quarter
Income taxes paid, net of refunds	`IncomeTaxesPaidNet`	$750.00K	USD	1 Quarter
Income taxes paid, net of refunds	`IncomeTaxesPaidNet`	$750.00K	USD	1 Quarter

Stockholders Equity 28 line items

Line Item	Tag	Value	Unit	Period
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.39B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.39B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.46B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.46B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.28B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.28B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.34B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.34B	USD	Point-in-time
Net income	`NetIncomeLoss`	$87.92M	USD	1 Quarter
Net income	`NetIncomeLoss`	$87.92M	USD	1 Quarter
Net income	`NetIncomeLoss`	$63.82M	USD	1 Quarter
Net income	`NetIncomeLoss`	$63.82M	USD	1 Quarter
Other comprehensive income	`ComprehensiveIncomeNetOfTax`	$87.96M	USD	1 Quarter
Other comprehensive income	`ComprehensiveIncomeNetOfTax`	$87.96M	USD	1 Quarter
Other comprehensive income	`ComprehensiveIncomeNetOfTax`	$64.05M	USD	1 Quarter
Other comprehensive income	`ComprehensiveIncomeNetOfTax`	$64.05M	USD	1 Quarter
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.39B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.39B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.46B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.46B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.28B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.28B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.34B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.34B	USD	Point-in-time
Dividends per share of common stock	`CommonStockDividendsPerShareCashPaid`	$0.49	USD	1 Quarter
Dividends per share of common stock	`CommonStockDividendsPerShareCashPaid`	$0.49	USD	1 Quarter
Dividends per share of common stock	`CommonStockDividendsPerShareCashPaid`	$0.49	USD	1 Quarter
Dividends per share of common stock	`CommonStockDividendsPerShareCashPaid`	$0.49	USD	1 Quarter

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