10-Q Filing

SOUTHWEST GAS CORP CIK: 92416 Q1 2012

Filing Information

Form Type	10-Q
Accession Number	`0001193125-12-221376`
Period End Date	20120331
Filing Date	20120509
Fiscal Year	2012
Fiscal Period	Q1
XBRL Instance	swx-20120331.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 89 Income Statement 92 Cash Flow Statement 129 Comprehensive Income 51

Balance Sheet 89 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`	$4.81B	USD	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	45.96M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$4.84B	USD	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.11M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.64B	USD	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.11M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.67B	USD	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	45.96M	shares	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments`	$-1.04M	USD	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments`	$-1.09M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$44.89M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$58.82M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.23B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.22B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$220.85M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$192.00M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsNoncurrent`	$12.79M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$218.06M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$116.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$108.38M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$39.01M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$21.94M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$209.25M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$210.74M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$43.70M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$70.30M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$2.30M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$7.79M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsNetCurrent`	$33.81M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsNetCurrent`	$53.44M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$2.32M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$77.33M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$96.60M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$585.94M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$461.63M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$395.38M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$390.64M	USD	Point-in-time
Total assets	`Assets`	$4.28B	USD	Point-in-time
Total assets	`Assets`	$4.44B	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,110,072 and 45,956,088 shares)	`CommonStockValue`	$47.59M	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,110,072 and 45,956,088 shares)	`CommonStockValue`	$47.74M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$823.46M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$821.64M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-46.84M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-49.33M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$406.12M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$471.26M	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.30B	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.23B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-989.00K	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-1.07M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.23B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.29B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.19B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$930.86M	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.16B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.48B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$322.62M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$205.06M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$132.54M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$186.75M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$83.84M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$83.14M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$42.10M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$58.56M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$19.30M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$16.70M	USD	Point-in-time
Deferred purchased gas costs	`RefundableGasCosts`	$72.43M	USD	Point-in-time
Deferred purchased gas costs	`RefundableGasCosts`	$75.72M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$123.13M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$115.01M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$847.57M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$689.33M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$557.12M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$578.56M	USD	Point-in-time
Taxes payable	`TaxesPayableNoncurrent`	$828.00K	USD	Point-in-time
Taxes payable	`TaxesPayableNoncurrent`	$759.00K	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$239.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$233.00M	USD	Point-in-time
Other deferred credits	`OtherDeferredCreditsNoncurrent`	$446.81M	USD	Point-in-time
Other deferred credits	`OtherDeferredCreditsNoncurrent`	$481.60M	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.27B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.27B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$4.44B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$4.28B	USD	Point-in-time

Income Statement 92 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.38B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$530.71M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$553.85M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.45B	USD	Annual
Construction revenues	`ConstructionRevenue`	$74.59M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$338.81M	USD	Annual
Construction revenues	`ConstructionRevenue`	$126.93M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$536.17M	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.79B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$657.64M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$628.44M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.92B	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$667.73M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$572.43M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$283.81M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$242.75M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$90.95M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$359.19M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$95.85M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$363.40M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$54.16M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$191.63M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$48.86M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$205.77M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$41.81M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$9.87M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$38.97M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$10.73M	USD	1 Quarter
Construction expenses	`ConstructionAndDevelopmentCosts`	$295.82M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$68.62M	USD	1 Quarter
Construction expenses	`ConstructionAndDevelopmentCosts`	$474.62M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$119.53M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$502.11M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$523.02M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.55B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.66B	USD	Annual
Operating income	`OperatingIncomeLoss`	$134.62M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$236.72M	USD	Annual
Operating income	`OperatingIncomeLoss`	$126.33M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$258.37M	USD	Annual
Net interest deductions	`InterestExpense`	$17.16M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$68.80M	USD	Annual
Net interest deductions	`InterestExpense`	$75.46M	USD	Annual
Net interest deductions	`InterestExpense`	$17.96M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$4.09M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-278.00K	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$5.43M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$294.00K	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-11.73M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-18.24M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-68.51M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-71.37M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$165.35M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$189.86M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$122.89M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$108.10M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$44.06M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$39.74M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$67.62M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$58.01M	USD	Annual
Net income	`ProfitLoss`	$78.83M	USD	1 Quarter
Net income	`ProfitLoss`	$122.24M	USD	Annual
Net income	`ProfitLoss`	$107.35M	USD	Annual
Net income	`ProfitLoss`	$68.35M	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-413.00K	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-84.00K	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-431.00K	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-195.00K	USD	1 Quarter
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$68.55M	USD	1 Quarter
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$122.66M	USD	Annual
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$107.78M	USD	Annual
Net income attributable to Southwest Gas Corporation	`NetIncomeLoss`	$78.92M	USD	1 Quarter
Basic earnings per share	`EarningsPerShareBasic`	$2.67	USD	Annual
Basic earnings per share	`EarningsPerShareBasic`	$1.71	USD	1 Quarter
Basic earnings per share	`EarningsPerShareBasic`	$1.50	USD	1 Quarter
Basic earnings per share	`EarningsPerShareBasic`	$2.37	USD	Annual
Diluted earnings per share	`EarningsPerShareDiluted`	$2.65	USD	Annual
Diluted earnings per share	`EarningsPerShareDiluted`	$1.70	USD	1 Quarter
Diluted earnings per share	`EarningsPerShareDiluted`	$1.48	USD	1 Quarter
Diluted earnings per share	`EarningsPerShareDiluted`	$2.34	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.01	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.09	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.29	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.27	USD	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.07M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	45.93M	shares	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	45.76M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	45.54M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.47M	shares	1 Quarter
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	45.97M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.18M	shares	1 Quarter
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.36M	shares	Annual

Cash Flow Statement 129 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$78.83M	USD	1 Quarter
Net income	`ProfitLoss`	$122.24M	USD	Annual
Net income	`ProfitLoss`	$107.35M	USD	Annual
Net income	`ProfitLoss`	$68.35M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$48.86M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$205.77M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$191.63M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$54.16M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$39.54M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$62.86M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$82.06M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$13.95M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$41.70M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$1.49M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$21.43M	USD	1 Quarter
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-7.17M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-26.60M	USD	1 Quarter
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$2.20M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-22.90M	USD	1 Quarter
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-2.20M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-5.61M	USD	1 Quarter
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$32.15M	USD	1 Quarter
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$15.12M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$2.51M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-5.87M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-56.09M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-51.08M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$10.82M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$21.89M	USD	1 Quarter
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-20.37M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-15.89M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$52.75M	USD	1 Quarter
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-3.79M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-29.28M	USD	1 Quarter
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-16.64M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-36.41M	USD	1 Quarter
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$2.20M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$1.41M	USD	1 Quarter
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$3.84M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$885.00K	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$2.84M	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$1.10M	USD	1 Quarter
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.38M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.58M	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$124.00K	USD	1 Quarter
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.35M	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$791.00K	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$322.00K	USD	1 Quarter
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$15.33M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$-1.60M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$16.06M	USD	1 Quarter
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$6.63M	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-6.20M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-22.41M	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$4.15M	USD	1 Quarter
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-62.94M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$339.16M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$130.79M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$166.37M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$287.62M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$51.82M	USD	1 Quarter
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$233.10M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$414.14M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$84.97M	USD	1 Quarter
Change in restricted cash	`IncreaseDecreaseInRestrictedCash`	$-37.78M	USD	Annual
Change in restricted cash	`IncreaseDecreaseInRestrictedCash`	$-11.99M	USD	Annual
Change in restricted cash	`IncreaseDecreaseInRestrictedCash`	$-12.79M	USD	1 Quarter
Changes in customer advances	`ChangeInCustomerAdvances`	$-446.00K	USD	Annual
Changes in customer advances	`ChangeInCustomerAdvances`	$-880.00K	USD	1 Quarter
Changes in customer advances	`ChangeInCustomerAdvances`	$-6.55M	USD	1 Quarter
Changes in customer advances	`ChangeInCustomerAdvances`	$-13.44M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$1.37M	USD	1 Quarter
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$8.58M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$2.26M	USD	1 Quarter
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$4.49M	USD	Annual
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$219.00K	USD	Annual
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$2.50M	USD	1 Quarter
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$5.30M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-222.37M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-76.47M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-381.44M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-53.83M	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$732.00K	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$4.00M	USD	1 Quarter
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$11.10M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$4.13M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$11.45M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$48.70M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$12.21M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$45.55M	USD	Annual
Interest rate swap settlement	`InterestRateSwapSettlement`	$11.69M	USD	Annual
Interest rate swap settlement	`InterestRateSwapSettlement`	$21.75M	USD	1 Quarter
Interest rate swap settlement	`InterestRateSwapSettlement`	$21.75M	USD	Annual
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$248.96M	USD	Annual
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$125.00M	USD	1 Quarter
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$475.48M	USD	Annual
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$325.88M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$202.24M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$77.42M	USD	1 Quarter
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$205.24M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$205.65M	USD	Annual
Change in credit facility	`ProceedsFromRepaymentsOfLinesOfCredit`	$-45.00M	USD	Annual
Change in credit facility	`ProceedsFromRepaymentsOfLinesOfCredit`	$-109.00M	USD	1 Quarter
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-47.43M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$106.22M	USD	1 Quarter
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$203.50M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-84.69M	USD	1 Quarter
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$69.37M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$196.12M	USD	1 Quarter
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$109.69M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-7.72M	USD	1 Quarter
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$218.06M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$116.10M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$39.01M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$108.38M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$21.94M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$218.06M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$108.38M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$39.01M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$21.94M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$116.10M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$17.71M	USD	1 Quarter
Interest paid, net of amounts capitalized	`InterestPaidNet`	$89.37M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$84.04M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$37.25M	USD	1 Quarter
Income taxes paid (received)	`IncomeTaxesPaidNet`	$-1.19M	USD	1 Quarter
Income taxes paid (received)	`IncomeTaxesPaidNet`	$-16.86M	USD	1 Quarter
Income taxes paid (received)	`IncomeTaxesPaidNet`	$6.00M	USD	Annual
Income taxes paid (received)	`IncomeTaxesPaidNet`	$2.04M	USD	Annual

Comprehensive Income 51 line items

Line Item	Tag	Value	Unit	Period
Net Income	`ProfitLoss`	$78.83M	USD	1 Quarter
Net Income	`ProfitLoss`	$122.24M	USD	Annual
Net Income	`ProfitLoss`	$107.35M	USD	Annual
Net Income	`ProfitLoss`	$68.35M	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$84.00M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$5.62M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$476.00K	USD	1 Quarter
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$134.00K	USD	1 Quarter
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$134.00K	USD	1 Quarter
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$537.00K	USD	Annual
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$537.00K	USD	Annual
Amortization of net loss	`DefinedBenefitPlanAmortizationOfNetGainsLossesNetOfTaxAmount`	$3.97M	USD	1 Quarter
Amortization of net loss	`DefinedBenefitPlanAmortizationOfNetGainsLossesNetOfTaxAmount`	$11.21M	USD	Annual
Amortization of net loss	`DefinedBenefitPlanAmortizationOfNetGainsLossesNetOfTaxAmount`	$2.41M	USD	1 Quarter
Amortization of net loss	`DefinedBenefitPlanAmortizationOfNetGainsLossesNetOfTaxAmount`	$8.05M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$-148.00K	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$-3.63M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$-2.23M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$64.28M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease`	$320.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease`	$2.82M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease`	$-7.98M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease`	$476.00K	USD	1 Quarter
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-9.72M	USD	Annual
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$1.83M	USD	1 Quarter
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-10.41M	USD	Annual
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$416.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax`	$725.00K	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax`	$181.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax`	$241.00K	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax`	$181.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease`	$-8.99M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease`	$597.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease`	$2.02M	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease`	$-10.17M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease`	$917.00K	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease`	$2.49M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease`	$-7.35M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease`	$-16.97M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$69.27M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$81.33M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$100.00M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$105.27M	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-431.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-413.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-84.00K	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-195.00K	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$81.41M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$100.43M	USD	Annual
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$105.68M	USD	Annual
Comprehensive income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$69.47M	USD	1 Quarter

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