10-K Filing

SOUTHWEST GAS HOLDINGS, INC. CIK: 1692115 FY 2020

Filing Information

Form Type	10-K
Accession Number	`0001692115-21-000008`
Period End Date	20201231
Filing Date	20210225
Fiscal Year	2020
Fiscal Period	FY
XBRL Instance	swx-20201231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 93 Income Statement 114 Cash Flow Statement 112 Stockholders Equity 17 Comprehensive Income 50

Balance Sheet 93 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
Common stock, issued (in shares)	`CommonStockSharesIssued`	57.19M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	55.01M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	57.19M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	55.01M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$7.81B	USD	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$8.38B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.31B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.42B	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$185.03M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$211.43M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$5.69B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$6.18B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$834.25M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$784.17M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$49.54M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$83.35M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$522.17M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$474.10M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$82.40M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$79.10M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$10.88M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$31.75M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$44.41M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$2.05M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$180.96M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$170.15M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$871.01M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$859.86M	USD	Point-in-time
Goodwill	`Goodwill`	$345.18M	USD	Point-in-time
Goodwill	`Goodwill`	$359.05M	USD	Point-in-time
Goodwill	`Goodwill`	$343.02M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$856.00K	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$455.00K	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$508.88M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$496.94M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$840.82M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$854.51M	USD	Point-in-time
Total assets	`Assets`	$8.17B	USD	Point-in-time
Total assets	`Assets`	$8.74B	USD	Point-in-time
Total assets	`Assets`	$7.36B	USD	Point-in-time
Common stock	`CommonStockValue`	$58.82M	USD	Point-in-time
Common stock	`CommonStockValue`	$56.64M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.47B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.61B	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-56.73M	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-61.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.07B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.04B	USD	Point-in-time
Total Southwest Gas Holdings, Inc. equity	`StockholdersEquity`	$2.67B	USD	Point-in-time
Total Southwest Gas Holdings, Inc. equity	`StockholdersEquity`	$2.51B	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$81.83M	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$165.72M	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$84.54M	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$2.30B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$2.73B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$5.57B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$4.89B	USD	Point-in-time
Commitments and contingencies (Note 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$40.43M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$163.51M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$211.00M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$107.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$231.30M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$238.92M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$69.17M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$67.92M	USD	Point-in-time
Income taxes payable, net	`IncomeTaxesPayableNet`	$12.56M	USD	Point-in-time
Income taxes payable, net	`IncomeTaxesPayableNet`	$2.07M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$48.16M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$48.64M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$20.54M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$21.33M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$60.76M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$54.64M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$328.94M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$264.95M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$911.97M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.08B	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$599.84M	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$647.45M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$404.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$395.00M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.20B	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.20B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.20B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.25B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$8.17B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$8.74B	USD	Point-in-time

Income Statement 114 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.36B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.37B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.35B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.52B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.75B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.95B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.12B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.30B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$848.14M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$757.25M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$914.08M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$833.54M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$713.01M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$725.23M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.88B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$836.32M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$791.23M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$385.16M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$419.39M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$342.84M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$408.12M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$424.15M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$406.39M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$249.21M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$303.24M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$332.03M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$63.46M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$62.33M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$59.90M	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.73B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.57B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.39B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.75B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.88B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.52B	USD	Annual
Operating income	`OperatingIncomeLoss`	$140.48M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$371.81M	USD	Annual
Operating income	`OperatingIncomeLoss`	$38.26M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$67.57M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$54.26M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$357.43M	USD	Annual
Operating income	`OperatingIncomeLoss`	$54.87M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$148.37M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$152.79M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$423.00M	USD	Annual
Operating income	`OperatingIncomeLoss`	$138.20M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$111.48M	USD	Annual
Net interest deductions	`InterestExpense`	$96.67M	USD	Annual
Net interest deductions	`InterestExpense`	$109.23M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$10.09M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-17.43M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-6.79M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-114.10M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-118.27M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-99.14M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$272.67M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$304.74M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$243.34M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$65.75M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$56.02M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$61.68M	USD	Annual
Net income	`ProfitLoss`	$39.88M	USD	1 Quarter
Net income	`ProfitLoss`	$105.04M	USD	1 Quarter
Net income	`ProfitLoss`	$181.65M	USD	Annual
Net income	`ProfitLoss`	$21.06M	USD	1 Quarter
Net income	`ProfitLoss`	$73.00M	USD	1 Quarter
Net income	`ProfitLoss`	$91.91M	USD	1 Quarter
Net income	`ProfitLoss`	$238.99M	USD	Annual
Net income	`ProfitLoss`	$6.53M	USD	1 Quarter
Net income	`ProfitLoss`	$95.38M	USD	1 Quarter
Net income	`ProfitLoss`	$216.65M	USD	Annual
Net income	`ProfitLoss`	$22.83M	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.71M	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$6.66M	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-625.00K	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$103.54M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$37.97M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$18.27M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$182.28M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$94.81M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$91.72M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$22.06M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$5.35M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$232.32M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$213.94M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$72.54M	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$1.31	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$0.41	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$0.32	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$1.78	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$1.82	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$0.10	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$4.15	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$3.69	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$1.67	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$0.68	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$3.94	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.68	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.67	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$3.94	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.31	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.32	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.77	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$4.14	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.41	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.82	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.10	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$3.68	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	56.00M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	49.42M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	54.24M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	54.31M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	49.48M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	56.08M	shares	Annual

Cash Flow Statement 112 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$39.88M	USD	1 Quarter
Net income	`ProfitLoss`	$105.04M	USD	1 Quarter
Net income	`ProfitLoss`	$181.65M	USD	Annual
Net income	`ProfitLoss`	$21.06M	USD	1 Quarter
Net income	`ProfitLoss`	$73.00M	USD	1 Quarter
Net income	`ProfitLoss`	$91.91M	USD	1 Quarter
Net income	`ProfitLoss`	$238.99M	USD	Annual
Net income	`ProfitLoss`	$6.53M	USD	1 Quarter
Net income	`ProfitLoss`	$95.38M	USD	1 Quarter
Net income	`ProfitLoss`	$216.65M	USD	Annual
Net income	`ProfitLoss`	$22.83M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$249.21M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$303.24M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$332.03M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-51.04M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-54.16M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-50.72M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$48.77M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$54.24M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$15.86M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-1.00M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$3.30M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$1.90M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-82.57M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-36.24M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$58.49M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-1.86M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-7.69M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$11.78M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-11.96M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$5.24M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$15.17M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$54.07M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-74.14M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-107.43M	USD	Annual
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$1.85M	USD	Annual
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$5.47M	USD	Annual
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$1.70M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.90M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.11M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$7.11M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$3.63M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$4.16M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$4.72M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$5.74M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$21.05M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$32.59M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-12.76M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$38.45M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-62.67M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$500.37M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$626.08M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$528.86M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$765.91M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$825.11M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$938.15M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$47.64M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$251.37M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$19.00M	USD	Annual
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$14.03M	USD	Annual
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$13.46M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-4.34M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.00M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-15.15M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-802.07M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-999.48M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-951.63M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$139.25M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$354.40M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$157.95M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$116.13M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$125.50M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$100.24M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$662.38M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$531.60M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$565.17M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$237.76M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$356.41M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$213.79M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-104.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$59.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-62.50M	USD	Annual
Withholding remittance share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.74M	USD	Annual
Withholding remittance share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.86M	USD	Annual
Withholding remittance share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$3.11M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-3.39M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-3.40M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.49M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$415.28M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$512.57M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$209.57M	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$228.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-208.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$158.00K	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$33.81M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$41.74M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-35.82M	USD	Annual
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.36M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$43.62M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.54M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$83.35M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.36M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$43.62M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.54M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$83.35M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$86.56M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$102.26M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$105.18M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$-10.95M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$2.75M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$1.22M	USD	Annual

Stockholders Equity 17 line items

Line Item	Tag	Value	Unit	Period
Beginning balance (in shares)	`CommonStockSharesOutstanding`	57.19M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesOutstanding`	55.01M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.51B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.25B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.67B	USD	Point-in-time
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.47M	USD	Annual
Redemption value adjustment	`MinorityInterestChangeInRedemptionValue`	$74.51M	USD	Annual
Ending balance (in shares)	`CommonStockSharesOutstanding`	57.19M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	55.01M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.51B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.25B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.67B	USD	Point-in-time
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$2.28K	USD	Annual
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$2.08K	USD	Annual
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$2.18K	USD	Annual

Comprehensive Income 50 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$39.88M	USD	1 Quarter
Net income	`ProfitLoss`	$105.04M	USD	1 Quarter
Net income	`ProfitLoss`	$181.65M	USD	Annual
Net income	`ProfitLoss`	$21.06M	USD	1 Quarter
Net income	`ProfitLoss`	$73.00M	USD	1 Quarter
Net income	`ProfitLoss`	$91.91M	USD	1 Quarter
Net income	`ProfitLoss`	$238.99M	USD	Annual
Net income	`ProfitLoss`	$6.53M	USD	1 Quarter
Net income	`ProfitLoss`	$95.38M	USD	1 Quarter
Net income	`ProfitLoss`	$216.65M	USD	Annual
Net income	`ProfitLoss`	$22.83M	USD	1 Quarter
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-15.52M	USD	Annual
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-43.73M	USD	Annual
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-54.03M	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$878.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$1.01M	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$966.00K	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-17.77M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-25.55M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-28.75M	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$1.43M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$6.26M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-5.65M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-28.08M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$8.45M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$8.64M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-4.78M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.47M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$2.54M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$2.47M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$2.54M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.01M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$2.04M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.71M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-4.27M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.31M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-4.06M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$234.71M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$212.58M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$185.97M	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$6.66M	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-625.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.71M	USD	Annual
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$186.59M	USD	Annual
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$209.87M	USD	Annual
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$228.05M	USD	Annual

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