10-Q Filing

SOUTHWEST GAS HOLDINGS, INC. CIK: 1692115 Q1 2023

Filing Information

Form Type	10-Q
Accession Number	`0001692115-23-000110`
Period End Date	20230331
Filing Date	20230509
Fiscal Year	2023
Fiscal Period	Q1
XBRL Instance	swx-20230331_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 91 Income Statement 92 Cash Flow Statement 162 Stockholders Equity 11 Comprehensive Income 52

Balance Sheet 91 line items

Line Item	Tag	Value	Unit	Period
Common stock, par (in USD per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par (in USD per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$9.58B	USD	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	67.12M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	71.33M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$9.45B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.71B	USD	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	67.12M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.67B	USD	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	71.33M	shares	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$250.89M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$244.75M	USD	Point-in-time
Net regulated operations plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$7.12B	USD	Point-in-time
Net regulated operations plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$7.02B	USD	Point-in-time
Other property and investments, net	`OtherPropertyAndInvestments`	$1.28B	USD	Point-in-time
Other property and investments, net	`OtherPropertyAndInvestments`	$1.25B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$82.08M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$123.08M	USD	Point-in-time
Accounts receivable, net of allowance	`AccountsReceivableNetCurrent`	$903.26M	USD	Point-in-time
Accounts receivable, net of allowance	`AccountsReceivableNetCurrent`	$866.25M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$56.90M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$88.10M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$8.74M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$8.14M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$450.12M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$970.34M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$368.00M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$210.31M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$433.85M	USD	Point-in-time
Current assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$1.74B	USD	Point-in-time
Current assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$26.99M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.26B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$3.71B	USD	Point-in-time
Goodwill	`Goodwill`	$787.25M	USD	Point-in-time
Goodwill	`Goodwill`	$787.33M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$82.00K	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$115.00K	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$391.94M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$395.95M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$1.18B	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$1.18B	USD	Point-in-time
Total assets	`Assets`	$13.20B	USD	Point-in-time
Total assets	`Assets`	$11.81B	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,330,991 and 67,119,143 shares)	`CommonStockValue`	$68.75M	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,330,991 and 67,119,143 shares)	`CommonStockValue`	$72.96M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$2.29B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$2.52B	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-44.24M	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-43.95M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$747.07M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$742.51M	USD	Point-in-time
Total equity	`StockholdersEquity`	$3.30B	USD	Point-in-time
Total equity	`StockholdersEquity`	$3.06B	USD	Point-in-time
Redeemable noncontrolling interests	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$159.35M	USD	Point-in-time
Redeemable noncontrolling interests	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$127.03M	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$4.40B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$4.58B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$8.00B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$7.62B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$44.56M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$41.91M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$467.50M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.54B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$310.75M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$662.09M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$50.35M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$51.18M	USD	Point-in-time
Income taxes payable, net	`IncomeTaxesPayableNet`	$739.00K	USD	Point-in-time
Income taxes payable, net	`IncomeTaxesPayableNet`	$2.69M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$101.58M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$67.09M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$38.56M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$45.64M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$592.02M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$369.74M	USD	Point-in-time
Current liabilities held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	-	USD	Point-in-time
Current liabilities held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$644.25M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.61B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.42B	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$682.07M	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$733.20M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$445.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$450.00M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.03B	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.02B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.15B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.20B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$13.20B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$11.81B	USD	Point-in-time

Income Statement 92 line items

Line Item	Tag	Value	Unit	Period
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$1.74B	USD	Annual
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$950.01M	USD	1 Quarter
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$743.53M	USD	1 Quarter
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$2.41B	USD	Annual
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$523.88M	USD	1 Quarter
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$2.89B	USD	Annual
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$653.29M	USD	1 Quarter
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$2.32B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.60B	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$4.06B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$5.30B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.27B	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$1.01B	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$507.54M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$298.92M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$573.80M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$148.91M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$515.76M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$149.30M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$636.37M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$460.33M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$400.25M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$122.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$112.52M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$84.47M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$92.80M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$24.82M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$24.23M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$2.12B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$503.23M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$2.63B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$603.68M	USD	1 Quarter
Goodwill impairment and loss on sale	`GoodwillImpairmentAndLossOnSale`	-	USD	Annual
Goodwill impairment and loss on sale	`GoodwillImpairmentAndLossOnSale`	$526.65M	USD	Annual
Goodwill impairment and loss on sale	`GoodwillImpairmentAndLossOnSale`	$71.23M	USD	1 Quarter
Goodwill impairment and loss on sale	`GoodwillImpairmentAndLossOnSale`	-	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$5.35B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.47B	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$3.70B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.10B	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$135.20M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$168.49M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$364.59M	USD	Annual
Operating income	`OperatingIncomeLoss`	$-57.69M	USD	Annual
Net interest deductions	`InterestExpense`	$143.60M	USD	Annual
Net interest deductions	`InterestExpense`	$271.72M	USD	Annual
Net interest deductions	`InterestExpense`	$77.33M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$48.36M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$1.24M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$11.03M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-2.70M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$18.46M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-58.87M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-260.69M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-146.30M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-47.12M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$218.29M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-318.39M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$76.33M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$121.38M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$32.68M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$24.12M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$28.68M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$-71.10M	USD	Annual
Net income (loss)	`ProfitLoss`	$97.25M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-247.28M	USD	Annual
Net income (loss)	`ProfitLoss`	$47.65M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$185.61M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$6.27M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.74M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.94M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.07M	USD	1 Quarter
Segment net income (loss)	`NetIncomeLoss`	$-253.56M	USD	Annual
Segment net income (loss)	`NetIncomeLoss`	$96.18M	USD	1 Quarter
Segment net income (loss)	`NetIncomeLoss`	$45.91M	USD	1 Quarter
Segment net income (loss)	`NetIncomeLoss`	$179.66M	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$3.00	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$-3.76	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$0.67	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$1.58	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.58	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$2.99	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$-3.76	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.67	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.92M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	67.41M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	68.27M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	60.74M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	68.42M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	60.04M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	67.41M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	60.85M	shares	1 Quarter

Cash Flow Statement 162 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$97.25M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-247.28M	USD	Annual
Net income (loss)	`ProfitLoss`	$47.65M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$185.61M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$460.33M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$400.25M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$122.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$112.52M	USD	1 Quarter
Impairment of assets and other charges	`ImpairmentOfAssetsAndOtherCharges`	-	USD	Annual
Impairment of assets and other charges	`ImpairmentOfAssetsAndOtherCharges`	$526.65M	USD	Annual
Impairment of assets and other charges	`ImpairmentOfAssetsAndOtherCharges`	-	USD	1 Quarter
Impairment of assets and other charges	`ImpairmentOfAssetsAndOtherCharges`	$71.23M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-32.35M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-36.71M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-70.23M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$67.68M	USD	Annual
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$1.92M	USD	1 Quarter
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$661.00K	USD	1 Quarter
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$7.31M	USD	Annual
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$6.61M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$3.44M	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$8.70M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$9.82M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.18M	USD	1 Quarter
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$82.00K	USD	1 Quarter
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$-723.00K	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$258.00K	USD	1 Quarter
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$289.00K	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$44.97M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$188.99M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$40.19M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$139.42M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-32.90M	USD	1 Quarter
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-31.20M	USD	1 Quarter
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$1.50M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$4.90M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$535.22M	USD	1 Quarter
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$600.19M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$134.51M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$82.25M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$8.62M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$71.59M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-305.27M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-82.95M	USD	1 Quarter
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$18.91M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$34.95M	USD	1 Quarter
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-7.40M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$33.96M	USD	1 Quarter
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$4.27M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-83.50M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-371.04M	USD	1 Quarter
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-79.68M	USD	1 Quarter
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$1.56M	USD	1 Quarter
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-15.62M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$3.46M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$297.00K	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-3.70M	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-34.27M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-26.92M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-11.49M	USD	1 Quarter
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$186.62M	USD	1 Quarter
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$350.46M	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-185.74M	USD	1 Quarter
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$35.10M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$725.71M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$219.12M	USD	1 Quarter
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$915.75M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$162.80M	USD	1 Quarter
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	1 Quarter
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	1 Quarter
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$18.81M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$2.35B	USD	Annual
Proceeds from the sale of business, net of cash sold	`ProceedsFromDivestitureOfBusinesses`	-	USD	Annual
Proceeds from the sale of business, net of cash sold	`ProceedsFromDivestitureOfBusinesses`	$1.06B	USD	1 Quarter
Proceeds from the sale of business, net of cash sold	`ProceedsFromDivestitureOfBusinesses`	$1.06B	USD	Annual
Proceeds from the sale of business, net of cash sold	`ProceedsFromDivestitureOfBusinesses`	-	USD	1 Quarter
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$-6.61M	USD	1 Quarter
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$7.69M	USD	1 Quarter
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$19.38M	USD	Annual
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$7.21M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-20.05M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-893.00K	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-15.59M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-3.12M	USD	1 Quarter
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.05B	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$150.97M	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$835.66M	USD	1 Quarter
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-154.21M	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$453.50M	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$247.67M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$618.15M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$239.34M	USD	1 Quarter
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	-	USD	Annual
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	$39.65M	USD	1 Quarter
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	-	USD	1 Quarter
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	$39.65M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$141.57M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$166.22M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$41.63M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$35.97M	USD	1 Quarter
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$663.77M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$2.36B	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$305.90M	USD	1 Quarter
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$709.93M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$84.22M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$440.69M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$143.45M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$574.89M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-130.00M	USD	1 Quarter
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-150.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-50.00M	USD	1 Quarter
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	-	USD	Annual
Change in short-term debt	`ChangeInShortTermDebt`	$-1.46B	USD	Annual
Change in short-term debt	`ChangeInShortTermDebt`	$-435.00M	USD	1 Quarter
Change in short-term debt	`ChangeInShortTermDebt`	$-1.53B	USD	1 Quarter
Change in short-term debt	`ChangeInShortTermDebt`	$-686.00M	USD	Annual
Issuance of short-term debt	`ProceedsFromShortTermDebt`	$1.85B	USD	Annual
Issuance of short-term debt	`ProceedsFromShortTermDebt`	$450.00M	USD	1 Quarter
Issuance of short-term debt	`ProceedsFromShortTermDebt`	$450.00M	USD	Annual
Issuance of short-term debt	`ProceedsFromShortTermDebt`	-	USD	1 Quarter
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.51M	USD	1 Quarter
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.00M	USD	Annual
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.98M	USD	1 Quarter
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.19M	USD	Annual
Other, including principal payments on finance leases	`ProceedsFromPaymentsForOtherFinancingActivities`	$-21.22M	USD	Annual
Other, including principal payments on finance leases	`ProceedsFromPaymentsForOtherFinancingActivities`	$-4.95M	USD	1 Quarter
Other, including principal payments on finance leases	`ProceedsFromPaymentsForOtherFinancingActivities`	$-7.27M	USD	Annual
Other, including principal payments on finance leases	`ProceedsFromPaymentsForOtherFinancingActivities`	$-7.90M	USD	1 Quarter
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$3.23B	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-714.82M	USD	1 Quarter
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-727.82M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$369.47M	USD	1 Quarter
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-835.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$104.00K	USD	1 Quarter
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$142.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.00K	USD	1 Quarter
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$532.32M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-542.58M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-64.80M	USD	1 Quarter
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$401.97M	USD	1 Quarter
Cash and cash equivalents included in current assets held for sale at beginning of period	`CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale`	$23.80M	USD	Point-in-time
Cash and cash equivalents included in current assets held for sale at beginning of period	`CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale`	-	USD	Point-in-time
Cash and cash equivalents included in current assets held for sale at beginning of period	`CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale`	-	USD	Point-in-time
Cash and cash equivalents included in current assets held for sale at beginning of period	`CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale`	-	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$123.08M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$624.67M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$92.34M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$222.70M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$82.08M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$123.08M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$624.67M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$92.34M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$222.70M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$82.08M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$68.02M	USD	1 Quarter
Interest paid, net of amounts capitalized	`InterestPaidNet`	$131.31M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$252.58M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$35.26M	USD	1 Quarter
Income taxes paid, net	`IncomeTaxesPaidNet`	$1.41M	USD	1 Quarter
Income taxes paid, net	`IncomeTaxesPaidNet`	$3.96M	USD	Annual
Income taxes paid, net	`IncomeTaxesPaidNet`	$12.97M	USD	Annual
Income taxes paid, net	`IncomeTaxesPaidNet`	$2.38M	USD	1 Quarter

Stockholders Equity 11 line items

Line Item	Tag	Value	Unit	Period
Beginning balance (in shares)	`CommonStockSharesOutstanding`	67.12M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesOutstanding`	71.33M	shares	Point-in-time
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.66M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-416.00K	USD	1 Quarter
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	1 Quarter
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	Annual
Redemption value adjustments	`MinorityInterestChangeInRedemptionValue`	$5.83M	USD	1 Quarter
Ending balance (in shares)	`CommonStockSharesOutstanding`	67.12M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	71.33M	shares	Point-in-time
Dividends declared per common share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.62	USD	1 Quarter
Dividends declared per common share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.62	USD	1 Quarter

Comprehensive Income 52 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$97.25M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-247.28M	USD	Annual
Net income (loss)	`ProfitLoss`	$47.65M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$185.61M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$3.10M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$44.97M	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$133.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$580.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$33.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$33.00K	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-20.10M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-32.04M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-253.00K	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-6.62M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$5.52M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$16.02M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$65.27M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$90.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.13M	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-7.31M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-12.32M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-196.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.66M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-416.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$416.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$1.66M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	-	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	-	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$444.00K	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.25M	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-7.28M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$97.00K	USD	1 Quarter
Total other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$293.00K	USD	1 Quarter
Total other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$14.42M	USD	Annual
Total other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.79M	USD	1 Quarter
Total other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$23.00K	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$47.94M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-247.26M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$200.02M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$100.04M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$6.27M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$5.94M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.07M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.74M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$-253.53M	USD	Annual
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$46.20M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$98.97M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$194.08M	USD	Annual

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