10-Q Filing

SOUTHWEST GAS CORP CIK: 92416 Q1 2015

Filing Information

Form Type	10-Q
Accession Number	`0001193125-15-174569`
Period End Date	20150331
Filing Date	20150506
Fiscal Year	2015
Fiscal Period	Q1
XBRL Instance	swx-20150331.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 98 Income Statement 92 Cash Flow Statement 134 Stockholders Equity 49

Balance Sheet 98 line items

Line Item	Tag	Value	Unit	Period
Common stock, par	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, authorized	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common stock, authorized	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$5.62B	USD	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$5.56B	USD	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.84M	shares	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.52M	shares	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.84M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.97B	USD	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.52M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.00B	USD	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1`	$505.00K	USD	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1`	$550.00K	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$81.00M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$74.33M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.66B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.70B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$326.74M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$319.69M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$821.00K	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$755.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$33.08M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$85.37M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$39.57M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$41.08M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$38.01M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$281.82M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$314.68M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$44.40M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$73.90M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$21.85M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$3.88M	USD	Point-in-time
Deferred income taxes, net	`DeferredTaxAssetsNetCurrent`	$2.11M	USD	Point-in-time
Deferred income taxes, net	`DeferredTaxAssetsNetCurrent`	$8.43M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$87.56M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$28.52M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$99.97M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$89.32M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$606.78M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$527.25M	USD	Point-in-time
Goodwill	`Goodwill`	$143.16M	USD	Point-in-time
Goodwill	`Goodwill`	$135.69M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsNetNoncurrent`	$1.42M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$472.59M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$478.62M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrent`	$609.70M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrent`	$621.78M	USD	Point-in-time
Total assets	`Assets`	$5.21B	USD	Point-in-time
Total assets	`Assets`	$5.15B	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,840,289 and 46,523,184 shares)	`CommonStockValue`	$48.15M	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,840,289 and 46,523,184 shares)	`CommonStockValue`	$48.47M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$851.38M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$862.96M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-50.17M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-50.18M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$639.16M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$692.60M	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.49B	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.55B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-2.12M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-2.26M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.55B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.49B	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$19.10M	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$20.04M	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.64B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.51B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$3.08B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$3.14B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$19.19M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$18.27M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$5.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$119.42M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$167.99M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$71.55M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$72.37M	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$14.34M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$44.34M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$61.82M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$16.47M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$22.33M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesGrossCurrent`	$16.30M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$390.00K	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$145.58M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$152.34M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$477.58M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$470.12M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$723.69M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$721.92M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$309.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$304.00M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$572.81M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$568.53M	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.60B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.60B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$5.21B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$5.15B	USD	Point-in-time

Income Statement 92 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$553.12M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$486.49M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.45B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.29B	USD	Annual
Construction revenues	`ConstructionRevenue`	$121.90M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$798.82M	USD	Annual
Construction revenues	`ConstructionRevenue`	$181.10M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$652.63M	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$734.22M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.25B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.95B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$608.40M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$253.76M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$426.77M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$191.38M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$567.74M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$390.24M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$376.83M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$102.41M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$95.51M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$257.60M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$62.89M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$240.78M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$67.47M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$11.46M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$48.79M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$13.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$45.21M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$579.79M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$709.59M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$113.20M	USD	1 Quarter
Construction expenses	`ConstructionAndDevelopmentCosts`	$174.93M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$604.66M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.68B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.96B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$481.33M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$262.89M	USD	Annual
Operating income	`OperatingIncomeLoss`	$127.06M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$129.56M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$286.97M	USD	Annual
Net interest deductions	`InterestExpense`	$65.34M	USD	Annual
Net interest deductions	`InterestExpense`	$17.98M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$17.52M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$72.53M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$7.77M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$2.27M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$9.84M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$1.61M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-55.50M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-15.71M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-64.76M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-15.91M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$113.85M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$207.39M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$111.16M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$222.21M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$79.88M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$40.46M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$41.97M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$72.49M	USD	Annual
Net income	`ProfitLoss`	$142.33M	USD	Annual
Net income	`ProfitLoss`	$70.70M	USD	1 Quarter
Net income	`ProfitLoss`	$134.90M	USD	Annual
Net income	`ProfitLoss`	$71.88M	USD	1 Quarter
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-104.00K	USD	1 Quarter
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-434.00K	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.00K	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-86.00K	USD	1 Quarter
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$70.78M	USD	1 Quarter
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$142.33M	USD	Annual
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$71.98M	USD	1 Quarter
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$135.33M	USD	Annual
Basic earnings per share	`EarningsPerShareBasic`	$2.92	USD	Annual
Basic earnings per share	`EarningsPerShareBasic`	$1.52	USD	1 Quarter
Basic earnings per share	`EarningsPerShareBasic`	$3.06	USD	Annual
Basic earnings per share	`EarningsPerShareBasic`	$1.54	USD	1 Quarter
Diluted earnings per share	`EarningsPerShareDiluted`	$3.03	USD	Annual
Diluted earnings per share	`EarningsPerShareDiluted`	$2.89	USD	Annual
Diluted earnings per share	`EarningsPerShareDiluted`	$1.53	USD	1 Quarter
Diluted earnings per share	`EarningsPerShareDiluted`	$1.51	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.36	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.50	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.41	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.35	USD	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.61M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.36M	shares	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.44M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.54M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.99M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.04M	shares	1 Quarter
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.81M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.87M	shares	1 Quarter

Cash Flow Statement 134 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$142.33M	USD	Annual
Net income	`ProfitLoss`	$70.70M	USD	1 Quarter
Net income	`ProfitLoss`	$134.90M	USD	Annual
Net income	`ProfitLoss`	$71.88M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$240.78M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$67.47M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$62.89M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$257.60M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-13.69M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-58.20M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-7.58M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-42.09M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$49.49M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$31.85M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-13.96M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-2.81M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-29.50M	USD	1 Quarter
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-28.60M	USD	1 Quarter
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$300.00K	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$500.00K	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$116.68M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-47.06M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$56.98M	USD	1 Quarter
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-59.42M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-1.04M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-24.03M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-49.17M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-66.64M	USD	1 Quarter
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$33.40M	USD	1 Quarter
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$49.78M	USD	1 Quarter
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$13.59M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$2.81M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-7.46M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-18.41M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-36.52M	USD	1 Quarter
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-31.55M	USD	1 Quarter
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$5.27M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$5.71M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$1.53M	USD	1 Quarter
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$2.43M	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$2.76M	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$7.06M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$462.00K	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$5.67M	USD	Annual
AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.89M	USD	Annual
AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$396.00K	USD	1 Quarter
AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.30M	USD	Annual
AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$498.00K	USD	1 Quarter
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$23.93M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$13.34M	USD	1 Quarter
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$20.99M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$11.13M	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$876.00K	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$53.14M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$17.16M	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-500.00K	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$142.00M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$222.24M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$354.60M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$426.67M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$410.40M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$76.89M	USD	1 Quarter
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$90.39M	USD	1 Quarter
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$387.93M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$199.76M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$9.26M	USD	1 Quarter
Restricted cash	`IncreaseDecreaseInRestrictedCash`	$-1.23M	USD	Annual
Changes in customer advances	`ChangeInCustomerAdvances`	$4.11M	USD	1 Quarter
Changes in customer advances	`ChangeInCustomerAdvances`	$21.70M	USD	Annual
Changes in customer advances	`ChangeInCustomerAdvances`	$5.45M	USD	1 Quarter
Changes in customer advances	`ChangeInCustomerAdvances`	$10.97M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$3.59M	USD	1 Quarter
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$10.46M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$2.83M	USD	1 Quarter
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$10.85M	USD	Annual
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$1.40M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-91.37M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-69.19M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-577.76M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-366.50M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$9.09M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$107.00K	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$8.79M	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$567.00K	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$17.02M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$61.22M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$15.34M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$67.95M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$318.50M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$50.30M	USD	1 Quarter
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$307.65M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$1.02M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$153.46M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$3.78M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$71.29M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$18.08M	USD	1 Quarter
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-10.00M	USD	1 Quarter
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-113.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-150.00M	USD	1 Quarter
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-5.00M	USD	1 Quarter
Principal payments on capital lease obligations	`RepaymentsOfDebtAndCapitalLeaseObligations`	$386.00K	USD	1 Quarter
Principal payments on capital lease obligations	`RepaymentsOfDebtAndCapitalLeaseObligations`	$820.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.07M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-329.00K	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$1.48M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-520.00K	USD	1 Quarter
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$64.18M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-28.51M	USD	1 Quarter
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$104.29M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-131.73M	USD	1 Quarter
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations`	$-546.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations`	$-688.00K	USD	1 Quarter
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-47.35M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$44.29M	USD	1 Quarter
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$52.28M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-1.55M	USD	1 Quarter
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$33.08M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$85.37M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$41.08M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$38.01M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$39.57M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$38.01M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$41.08M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$39.57M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$85.37M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$33.08M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$10.47M	USD	1 Quarter
Interest paid, net of amounts capitalized	`InterestPaidNet`	$10.50M	USD	1 Quarter
Interest paid, net of amounts capitalized	`InterestPaidNet`	$65.58M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$56.06M	USD	Annual
Income taxes paid	`IncomeTaxesPaidNet`	$26.11M	USD	Annual
Income taxes paid	`IncomeTaxesPaidNet`	$2.10M	USD	1 Quarter
Income taxes paid	`IncomeTaxesPaidNet`	$238.00K	USD	1 Quarter
Income taxes paid	`IncomeTaxesPaidNet`	$6.45M	USD	Annual

Stockholders Equity 49 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$142.33M	USD	Annual
Net income	`ProfitLoss`	$70.70M	USD	1 Quarter
Net income	`ProfitLoss`	$134.90M	USD	Annual
Net income	`ProfitLoss`	$71.88M	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-107.66M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$62.21M	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$220.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$55.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$371.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$206.00K	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.67M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-16.33M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-19.56M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-5.33M	USD	1 Quarter
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$4.13M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$3.21M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-85.37M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$75.16M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$4.83M	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-6.83M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-512.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$9.72M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-708.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.07M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.07M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-518.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-519.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.07M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$518.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$519.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.07M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.93M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.27M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-45.00K	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-9.57M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.03M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$8.91M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$71.73M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$132.76M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$71.83M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$143.80M	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-434.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-147.00K	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-86.00K	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-61.00K	USD	Annual
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$71.81M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$71.98M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$144.24M	USD	Annual
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$132.82M	USD	Annual

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