10-Q Filing

SOUTHWEST GAS HOLDINGS, INC. CIK: 1692115 Q2 2022

Filing Information

Form Type	10-Q
Accession Number	`0001692115-22-000024`
Period End Date	20220630
Filing Date	20220809
Fiscal Year	2022
Fiscal Period	Q2
XBRL Instance	swx-20220630_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 88 Income Statement 132 Cash Flow Statement 154 Stockholders Equity 15 Comprehensive Income 78

Balance Sheet 88 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`	$11.05B	USD	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	67.00M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$10.79B	USD	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	60.42M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	67.00M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$3.50B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$3.40B	USD	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	60.42M	shares	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$202.07M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$218.64M	USD	Point-in-time
Net regulated operations plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$7.77B	USD	Point-in-time
Net regulated operations plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$7.59B	USD	Point-in-time
Other property and investments, net	`OtherPropertyAndInvestments`	$1.32B	USD	Point-in-time
Other property and investments, net	`OtherPropertyAndInvestments`	$1.31B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$215.96M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$222.70M	USD	Point-in-time
Accounts receivable, net of allowance	`AccountsReceivableNetCurrent`	$750.79M	USD	Point-in-time
Accounts receivable, net of allowance	`AccountsReceivableNetCurrent`	$707.13M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$40.00M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$84.90M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$19.15M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$16.82M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$291.14M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$354.57M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$263.36M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$292.08M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.64B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.61B	USD	Point-in-time
Goodwill	`Goodwill`	$1.78B	USD	Point-in-time
Goodwill	`Goodwill`	$1.75B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$121.00K	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$168.00K	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$458.54M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$444.33M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$2.19B	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$2.24B	USD	Point-in-time
Total assets	`Assets`	$12.77B	USD	Point-in-time
Total assets	`Assets`	$12.92B	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 67,003,792 and 60,422,081 shares)	`CommonStockValue`	$68.63M	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 67,003,792 and 60,422,081 shares)	`CommonStockValue`	$62.05M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$2.28B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.82B	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-45.53M	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-46.76M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.11B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.16B	USD	Point-in-time
Total equity	`StockholdersEquity`	$3.46B	USD	Point-in-time
Total equity	`StockholdersEquity`	$2.95B	USD	Point-in-time
Redeemable noncontrolling interests	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$196.72M	USD	Point-in-time
Redeemable noncontrolling interests	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$122.66M	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$4.12B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$4.59B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$8.17B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$7.27B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$297.32M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$41.28M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.91B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.46B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$306.75M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$353.37M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$59.33M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$53.99M	USD	Point-in-time
Income taxes payable, net	`IncomeTaxesPayableNet`	$6.73M	USD	Point-in-time
Income taxes payable, net	`IncomeTaxesPayableNet`	$1.73M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$53.47M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$55.88M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$30.96M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$35.70M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$5.74M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$4.99M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$387.36M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$396.13M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.35B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.11B	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$785.26M	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$768.87M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$480.58M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$494.55M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.14B	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.12B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.40B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.39B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$12.77B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$12.92B	USD	Point-in-time

Income Statement 132 line items

Line Item	Tag	Value	Unit	Period
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$1.40B	USD	Annual
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$1.89B	USD	Annual
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$440.03M	USD	1 Quarter
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$292.80M	USD	1 Quarter
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$814.73M	USD	2 Qtrs
Regulated operations revenues	`RegulatedOperatingRevenueGas`	$1.18B	USD	2 Qtrs
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$706.09M	USD	1 Quarter
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$528.62M	USD	1 Quarter
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$2.50B	USD	Annual
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$2.01B	USD	Annual
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$892.60M	USD	2 Qtrs
Utility infrastructure services revenues	`RegulatedOperatingRevenueUtilityInfrastructureServices`	$1.23B	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.41B	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$4.39B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$821.42M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.15B	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.41B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.71B	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$347.06M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$76.50M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$232.52M	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$147.86M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$446.78M	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$645.17M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$586.72M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$211.52M	USD	2 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$175.79M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$416.44M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$325.09M	USD	2 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$104.83M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$230.66M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$82.85M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$343.45M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$108.01M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$176.29M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$425.41M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$87.74M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$22.61M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$40.02M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$47.42M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$71.77M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$19.34M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$478.64M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$814.25M	USD	2 Qtrs
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.79B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$2.29B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.15B	USD	2 Qtrs
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$646.19M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$4.04B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.10B	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$2.20B	USD	2 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.97B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$762.15M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.47B	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$350.98M	USD	Annual
Operating income	`OperatingIncomeLoss`	$45.66M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$214.15M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$59.27M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$439.78M	USD	Annual
Operating income	`OperatingIncomeLoss`	$232.72M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$170.86M	USD	Annual
Net interest deductions	`InterestExpense`	$25.94M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$49.90M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$101.57M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$53.21M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$106.55M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-1.59M	USD	2 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-2.83M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-863.00K	USD	2 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-1.31M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-4.23M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$5.19M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-101.36M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-175.09M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-103.16M	USD	2 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-50.77M	USD	2 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-56.04M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-27.25M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-10.38M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$175.89M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$338.42M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$110.99M	USD	2 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$181.95M	USD	2 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$32.02M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$19.82M	USD	2 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$-4.30M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$5.54M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$36.63M	USD	2 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$22.84M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$67.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$-6.08M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$145.32M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$26.47M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$153.05M	USD	Annual
Net income (loss)	`ProfitLoss`	$271.42M	USD	Annual
Net income (loss)	`ProfitLoss`	$91.17M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.35M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$7.19M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.57M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$494.00K	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.91M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.08M	USD	Annual
Net income (loss) attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$142.41M	USD	2 Qtrs
Net income (loss) attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$-6.58M	USD	1 Quarter
Net income (loss) attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$147.97M	USD	Annual
Net income (loss) attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$25.12M	USD	1 Quarter
Net income (loss) attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$89.60M	USD	2 Qtrs
Net income (loss) attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$264.23M	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$-0.10	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$0.43	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$2.45	USD	2 Qtrs
Basic (in USD per share)	`EarningsPerShareBasic`	$2.39	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$1.40	USD	2 Qtrs
Basic (in USD per share)	`EarningsPerShareBasic`	$4.61	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.40	USD	2 Qtrs
Diluted (in USD per share)	`EarningsPerShareDiluted`	$2.45	USD	2 Qtrs
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.43	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$4.60	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$-0.10	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$2.38	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	67.05M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	58.11M	shares	2 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	57.35M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	62.02M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	58.61M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	63.91M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	67.19M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	58.71M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	62.16M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	64.04M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	57.44M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	58.20M	shares	2 Qtrs

Cash Flow Statement 154 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$-6.08M	USD	1 Quarter
Net income	`ProfitLoss`	$145.32M	USD	2 Qtrs
Net income	`ProfitLoss`	$26.47M	USD	1 Quarter
Net income	`ProfitLoss`	$153.05M	USD	Annual
Net income	`ProfitLoss`	$271.42M	USD	Annual
Net income	`ProfitLoss`	$91.17M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$230.66M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$82.85M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$343.45M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$108.01M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$176.29M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$425.41M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-63.77M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-30.16M	USD	2 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-44.18M	USD	2 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-47.20M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-10.01M	USD	2 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$103.77M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$42.21M	USD	2 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$29.02M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$2.70M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-43.90M	USD	2 Qtrs
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$1.50M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-44.90M	USD	2 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$64.18M	USD	2 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$120.22M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$287.69M	USD	2 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$305.04M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-1.57M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-33.36M	USD	2 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$58.15M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-41.08M	USD	2 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-3.16M	USD	2 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-8.58M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$2.99M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-5.02M	USD	2 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$40.80M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$31.93M	USD	2 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$3.04M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-16.48M	USD	2 Qtrs
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$6.35M	USD	Annual
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$4.03M	USD	2 Qtrs
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$5.57M	USD	Annual
Gains on sale of property and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$3.48M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$8.52M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$7.04M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$5.74M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$10.59M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.54M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$575.00K	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$575.00K	USD	2 Qtrs
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	-	USD	2 Qtrs
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$35.49M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-13.74M	USD	2 Qtrs
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-11.37M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$11.17M	USD	2 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-21.70M	USD	2 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-50.32M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-52.87M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-45.01M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.36M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$373.64M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$252.30M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$263.62M	USD	2 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$739.72M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$745.51M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$338.05M	USD	2 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$367.93M	USD	2 Qtrs
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$2.37B	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	2 Qtrs
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$18.81M	USD	2 Qtrs
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$7.51M	USD	2 Qtrs
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$17.05M	USD	2 Qtrs
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$25.52M	USD	Annual
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$17.44M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.16M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-13.37M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-3.90M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-13.00M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.08B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-708.91M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-365.79M	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-321.38M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$456.28M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$121.30M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$205.05M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$548.62M	USD	Annual
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	$39.65M	USD	Annual
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	-	USD	Annual
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	-	USD	2 Qtrs
Centuri distribution to redeemable noncontrolling interest	`DistributionToRedeemableNoncontrollingInterest`	$39.65M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$131.19M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$148.51M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$67.13M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$77.42M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$124.32M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$759.60M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$2.34B	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$82.25M	USD	2 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$804.43M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$412.26M	USD	2 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$299.37M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$60.50M	USD	2 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-150.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$150.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	-	USD	2 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-130.00M	USD	2 Qtrs
Change in short-term debt	`ChangeInShortTermDebt`	$211.00M	USD	2 Qtrs
Change in short-term debt	`ChangeInShortTermDebt`	$-705.25M	USD	Annual
Change in short-term debt	`ChangeInShortTermDebt`	$-446.25M	USD	2 Qtrs
Change in short-term debt	`ChangeInShortTermDebt`	$260.00M	USD	Annual
Issuance of short-term debt	`ProceedsFromShortTermDebt`	-	USD	2 Qtrs
Issuance of short-term debt	`ProceedsFromShortTermDebt`	$1.85B	USD	Annual
Issuance of short-term debt	`ProceedsFromShortTermDebt`	-	USD	2 Qtrs
Issuance of short-term debt	`ProceedsFromShortTermDebt`	-	USD	Annual
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.24M	USD	Annual
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.09M	USD	2 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.24M	USD	2 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.11M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-12.81M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.62M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-3.56M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-11.92M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$2.87B	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$284.05M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$95.40M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$304.00M	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$35.00K	USD	2 Qtrs
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$188.00K	USD	2 Qtrs
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$586.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$7.00K	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-35.79M	USD	2 Qtrs
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-152.03M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$168.40M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-6.73M	USD	2 Qtrs
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.56M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$199.59M	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`	$83.35M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$215.96M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.56M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$199.59M	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`	$83.35M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$215.96M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$101.23M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$47.48M	USD	2 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$149.17M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$92.30M	USD	2 Qtrs
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$15.12M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$5.85M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$8.30M	USD	2 Qtrs
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$6.66M	USD	2 Qtrs

Stockholders Equity 15 line items

Line Item	Tag	Value	Unit	Period
Beginning balance (in shares)	`CommonStockSharesOutstanding`	67.00M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesOutstanding`	60.42M	shares	Point-in-time
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-414.00K	USD	1 Quarter
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-827.00K	USD	2 Qtrs
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.24M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-416.00K	USD	2 Qtrs
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	1 Quarter
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.02M	USD	Annual
Redemption value adjustments	`MinorityInterestChangeInRedemptionValue`	$-35.98M	USD	2 Qtrs
Ending balance (in shares)	`CommonStockSharesOutstanding`	67.00M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	60.42M	shares	Point-in-time
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$1.19	USD	2 Qtrs
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.62	USD	1 Quarter
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.59	USD	1 Quarter
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$1.24	USD	2 Qtrs

Comprehensive Income 78 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$-6.08M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$145.32M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$26.47M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$153.05M	USD	Annual
Net income (loss)	`ProfitLoss`	$271.42M	USD	Annual
Net income (loss)	`ProfitLoss`	$91.17M	USD	2 Qtrs
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-43.73M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$44.97M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$802.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$66.00K	USD	2 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$431.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$182.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$364.00K	USD	2 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$33.00K	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-31.32M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-16.95M	USD	2 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-6.62M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-8.47M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-13.23M	USD	2 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-30.18M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$5.52M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-3.86M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$11.05M	USD	2 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$14.55M	USD	2 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$7.28M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$63.52M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$7.75M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.12M	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.38M	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-2.76M	USD	2 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-2.25M	USD	2 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-12.06M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-414.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-827.00K	USD	2 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.24M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-416.00K	USD	2 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.02M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$1.24M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$827.00K	USD	2 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$416.00K	USD	2 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$414.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	-	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$2.02M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-2.68M	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$909.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.15M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.43M	USD	2 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$5.66M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.73M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.56M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.23M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$10.16M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.70M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-71.00K	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$5.32M	USD	2 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$150.63M	USD	2 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$163.21M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$92.40M	USD	2 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$271.35M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-7.64M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$29.17M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.91M	USD	2 Qtrs
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.35M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$494.00K	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$7.19M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.57M	USD	2 Qtrs
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$5.08M	USD	Annual
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$158.13M	USD	Annual
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$27.82M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$90.84M	USD	2 Qtrs
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$-8.13M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$264.16M	USD	Annual
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$147.73M	USD	2 Qtrs

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