10-Q Filing

SOUTHWEST GAS CORP CIK: 92416 Q2 2013

Filing Information

Form Type	10-Q
Accession Number	`0001193125-13-324374`
Period End Date	20130630
Filing Date	20130807
Fiscal Year	2013
Fiscal Period	Q2
XBRL Instance	swx-20130630.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 89 Income Statement 137 Cash Flow Statement 133 Stockholders Equity 75

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`	60.00B	shares	Point-in-time
Common stock, authorized	`CommonStockSharesAuthorized`	60.00B	shares	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.15B	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$5.11B	USD	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.33B	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$5.02B	USD	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.33B	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.81B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.75B	USD	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.15B	shares	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1`	$821.00K	USD	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1`	$911.00K	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$74.18M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$83.17M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.34B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.39B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$252.47M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$242.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$32.56M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$17.72M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$25.53M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$85.96M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$21.94M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$196.91M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$160.26M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$72.00M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$30.40M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$1.86M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$2.94M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsNetCurrent`	$10.48M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsNetCurrent`	$47.09M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$6.03M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$11.00K	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$85.11M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$107.91M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$458.42M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$305.84M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$443.75M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$436.78M	USD	Point-in-time
Total assets	`Assets`	$4.38B	USD	Point-in-time
Total assets	`Assets`	$4.49B	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,334,769 and 46,147,788 shares)	`CommonStockValue`	$47.97M	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,334,769 and 46,147,788 shares)	`CommonStockValue`	$47.78M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$828.78M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$834.13M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-48.41M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-50.74M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$544.30M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$484.37M	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.38B	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.31B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-1.68M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-1.82M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.31B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.38B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.26B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.27B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.58B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.63B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$50.14M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$11.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$105.20M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$155.67M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$76.38M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$77.86M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$37.64M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$34.24M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$16.08M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$15.38M	USD	Point-in-time
Deferred purchased gas costs	`RefundableGasCosts`	$28.56M	USD	Point-in-time
Deferred purchased gas costs	`RefundableGasCosts`	$98.96M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$98.79M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$103.94M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$374.70M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$535.13M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$616.18M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$626.79M	USD	Point-in-time
Taxes payable	`TaxesPayableNoncurrent`	$418.00K	USD	Point-in-time
Taxes payable	`TaxesPayableNoncurrent`	$551.00K	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$268.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$256.00M	USD	Point-in-time
Other deferred credits	`OtherDeferredCreditsNoncurrent`	$479.64M	USD	Point-in-time
Other deferred credits	`OtherDeferredCreditsNoncurrent`	$503.32M	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.37B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.38B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$4.38B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$4.49B	USD	Point-in-time

Income Statement 137 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$786.63M	USD	2 Qtrs
Gas operating revenues	`RegulatedOperatingRevenueGas`	$238.87M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$255.92M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.27B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.36B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$732.47M	USD	2 Qtrs
Construction revenues	`ConstructionRevenue`	$172.71M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$574.93M	USD	Annual
Construction revenues	`ConstructionRevenue`	$280.78M	USD	2 Qtrs
Construction revenues	`ConstructionRevenue`	$617.88M	USD	Annual
Construction revenues	`ConstructionRevenue`	$153.85M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$292.61M	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$409.77M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.07B	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.94B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.03B	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$411.57M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.89B	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$91.96M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$334.71M	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$270.00M	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$69.39M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$547.33M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$414.89M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$187.73M	USD	2 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$94.94M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$192.02M	USD	2 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$91.88M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$374.27M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$366.57M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$109.70M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$58.57M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$117.50M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$231.22M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$55.54M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$211.89M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$11.07M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$9.73M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$22.87M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$20.46M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$44.13M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$41.25M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$517.43M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$532.11M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$145.27M	USD	1 Quarter
Construction expenses	`ConstructionAndDevelopmentCosts`	$255.39M	USD	2 Qtrs
Construction expenses	`ConstructionAndDevelopmentCosts`	$264.81M	USD	2 Qtrs
Construction expenses	`ConstructionAndDevelopmentCosts`	$148.70M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$394.39M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$857.78M	USD	2 Qtrs
Total operating expenses	`CostsAndExpenses`	$382.67M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$917.41M	USD	2 Qtrs
Total operating expenses	`CostsAndExpenses`	$1.68B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.60B	USD	Annual
Operating income	`OperatingIncomeLoss`	$15.38M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$288.82M	USD	Annual
Operating income	`OperatingIncomeLoss`	$28.91M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$150.00M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$167.30M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$253.18M	USD	Annual
Net interest deductions	`InterestExpense`	$69.70M	USD	Annual
Net interest deductions	`InterestExpense`	$31.17M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$15.29M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$35.41M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$63.78M	USD	Annual
Net interest deductions	`InterestExpense`	$18.25M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$5.52M	USD	2 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$1.45M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$6.99M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-2.49M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$2.94M	USD	2 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-3.75M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-13.84M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-73.45M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-56.78M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-20.74M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-32.47M	USD	2 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-25.65M	USD	2 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$15.07M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$232.04M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$117.53M	USD	2 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$179.73M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-5.36M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$141.66M	USD	2 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$83.61M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$50.91M	USD	2 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$5.00M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$65.39M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$-1.47M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$42.58M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$-3.89M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$74.95M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$148.43M	USD	Annual
Net income (loss)	`ProfitLoss`	$90.74M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$114.34M	USD	Annual
Net income (loss)	`ProfitLoss`	$10.07M	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-212.00K	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-140.00K	USD	2 Qtrs
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-41.00K	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-536.00K	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-296.00K	USD	2 Qtrs
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-583.00K	USD	Annual
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$114.93M	USD	Annual
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$148.97M	USD	Annual
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$10.11M	USD	1 Quarter
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$75.24M	USD	2 Qtrs
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$-3.68M	USD	1 Quarter
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$90.88M	USD	2 Qtrs
Basic earnings (loss) per share	`EarningsPerShareBasic`	$1.63	USD	2 Qtrs
Basic earnings (loss) per share	`EarningsPerShareBasic`	$3.22	USD	Annual
Basic earnings (loss) per share	`EarningsPerShareBasic`	$2.50	USD	Annual
Basic earnings (loss) per share	`EarningsPerShareBasic`	$1.96	USD	2 Qtrs
Basic earnings (loss) per share	`EarningsPerShareBasic`	$0.22	USD	1 Quarter
Basic earnings (loss) per share	`EarningsPerShareBasic`	$-0.08	USD	1 Quarter
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$0.22	USD	1 Quarter
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$1.62	USD	2 Qtrs
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$-0.08	USD	1 Quarter
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$2.48	USD	Annual
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$1.95	USD	2 Qtrs
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$3.19	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.12	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.33	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.29	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.66	USD	2 Qtrs
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.25	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.59	USD	2 Qtrs
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.00M	shares	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.29M	shares	2 Qtrs
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.09M	shares	2 Qtrs
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.11M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.21M	shares	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.33M	shares	1 Quarter
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.42M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.70M	shares	2 Qtrs
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.65M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.76M	shares	1 Quarter
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.50M	shares	2 Qtrs

Cash Flow Statement 133 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$74.95M	USD	2 Qtrs
Net income	`ProfitLoss`	$148.43M	USD	Annual
Net income	`ProfitLoss`	$90.74M	USD	2 Qtrs
Net income	`ProfitLoss`	$114.34M	USD	Annual
Net income	`ProfitLoss`	$10.07M	USD	1 Quarter
Net income	`ProfitLoss`	$-3.89M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$109.70M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$117.50M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$58.57M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$211.89M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$231.22M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$55.54M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$38.24M	USD	2 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$45.78M	USD	2 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$59.54M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$73.82M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-54.42M	USD	2 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$5.44M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-36.65M	USD	2 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$32.96M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-41.10M	USD	2 Qtrs
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$1.20M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-41.60M	USD	2 Qtrs
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-2.50M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$88.32M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$64.38M	USD	2 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-18.06M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-46.77M	USD	2 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-102.67M	USD	2 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-53.92M	USD	2 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-16.77M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$22.75M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-1.42M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$4.10M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-6.44M	USD	2 Qtrs
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-2.45M	USD	2 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-24.09M	USD	2 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$23.20M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-11.46M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-28.34M	USD	2 Qtrs
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$7.03M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$5.30M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$2.29M	USD	2 Qtrs
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$3.29M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$5.84M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$3.85M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$3.15M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$5.62M	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.00M	USD	2 Qtrs
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$714.00K	USD	2 Qtrs
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.55M	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.23M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$9.18M	USD	2 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$22.58M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$16.39M	USD	2 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$-16.12M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$3.93M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-12.92M	USD	2 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-4.56M	USD	2 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-56.31M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$325.21M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$215.22M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$261.45M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$340.09M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$176.38M	USD	2 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$371.21M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$418.27M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$151.88M	USD	2 Qtrs
Restricted cash	`IncreaseDecreaseInRestrictedCash`	$-37.78M	USD	Annual
Restricted cash	`IncreaseDecreaseInRestrictedCash`	$-12.79M	USD	2 Qtrs
Changes in customer advances	`ChangeInCustomerAdvances`	$-13.80M	USD	2 Qtrs
Changes in customer advances	`ChangeInCustomerAdvances`	$13.90M	USD	Annual
Changes in customer advances	`ChangeInCustomerAdvances`	$3.13M	USD	2 Qtrs
Changes in customer advances	`ChangeInCustomerAdvances`	$-19.75M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$13.77M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$4.91M	USD	2 Qtrs
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$5.10M	USD	2 Qtrs
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$10.17M	USD	Annual
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$1.03M	USD	2 Qtrs
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$969.00K	USD	Annual
Miscellaneous outflows	`PaymentsForOtherInvestingActivities`	$1.03M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-391.11M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-143.84M	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-173.33M	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-344.51M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$3.99M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$1.31M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$1.36M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$1.63M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$25.82M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$56.17M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$28.95M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$50.15M	USD	Annual
Interest rate swap settlement	`InterestRateSwapSettlement`	$21.75M	USD	Annual
Interest rate swap settlement	`InterestRateSwapSettlement`	$21.75M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$400.80M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$41.67M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$130.39M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$510.52M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$205.27M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$430.11M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$323.04M	USD	2 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$101.27M	USD	2 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	-	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$8.00M	USD	2 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$119.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$-109.00M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-79.19M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-77.50M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-10.43M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$12.50M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-53.40M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-7.81M	USD	2 Qtrs
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$10.63M	USD	2 Qtrs
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-14.85M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$32.56M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$17.72M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$85.96M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$25.53M	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`	$32.56M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$85.96M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$25.53M	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`	$17.72M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$60.10M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$56.45M	USD	2 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$89.28M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$29.12M	USD	2 Qtrs
Income taxes paid	`IncomeTaxesPaidNet`	$4.61M	USD	Annual
Income taxes paid	`IncomeTaxesPaidNet`	$3.53M	USD	2 Qtrs
Income taxes paid	`IncomeTaxesPaidNet`	$1.77M	USD	2 Qtrs
Income taxes paid	`IncomeTaxesPaidNet`	$2.72M	USD	Annual

Stockholders Equity 75 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$74.95M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$148.43M	USD	Annual
Net income (loss)	`ProfitLoss`	$90.74M	USD	2 Qtrs
Net income (loss)	`ProfitLoss`	$114.34M	USD	Annual
Net income (loss)	`ProfitLoss`	$10.07M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-3.89M	USD	1 Quarter
Net actuarial gain (loss)	`DefinedBenefitPlanActuarialNetGainsLossesNetOfTaxAmount`	$46.41M	USD	Annual
Net actuarial gain (loss)	`DefinedBenefitPlanActuarialNetGainsLossesNetOfTaxAmount`	$84.00M	USD	Annual
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$-134.00K	USD	1 Quarter
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$-270.00K	USD	Annual
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$-536.00K	USD	Annual
Amortization of transition obligation	`DefinedBenefitPlanAmortizationOfNetTransitionAssetObligationNetOfTaxAmount`	$-268.00K	USD	2 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansAmortizationOfAccumulatedNetActuarialLoss`	$-12.76M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansAmortizationOfAccumulatedNetActuarialLoss`	$-18.53M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansAmortizationOfAccumulatedNetActuarialLoss`	$-3.97M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansAmortizationOfAccumulatedNetActuarialLoss`	$-5.30M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansAmortizationOfAccumulatedNetActuarialLoss`	$-7.94M	USD	2 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansAmortizationOfAccumulatedNetActuarialLoss`	$-10.60M	USD	2 Qtrs
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$-109.00K	USD	2 Qtrs
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$1.39M	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$-54.00K	USD	1 Quarter
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$7.25M	USD	2 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$-24.37M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$9.40M	USD	2 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$4.70M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$-62.88M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustment`	$3.63M	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$4.64M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.30M	USD	2 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-650.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-476.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$7.83M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-952.00K	USD	2 Qtrs
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$1.83M	USD	2 Qtrs
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Unrealized/realized gain (loss)	`OtherComprehensiveIncomeRealizedAndUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-7.35M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-519.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.04M	USD	2 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.06M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-519.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-700.00K	USD	2 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.07M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$519.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.53M	USD	2 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$1.04M	USD	2 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$-6.29M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.07M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$519.00K	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.49M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.17M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.56M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.34M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$995.00K	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-14.11M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$11.24M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$93.08M	USD	2 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-2.89M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$100.23M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$145.87M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$78.43M	USD	2 Qtrs
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-140.00K	USD	2 Qtrs
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-296.00K	USD	2 Qtrs
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-583.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-536.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-212.00K	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-41.00K	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$146.41M	USD	Annual
Comprehensive income (loss) attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$-2.68M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$78.73M	USD	2 Qtrs
Comprehensive income (loss) attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$100.81M	USD	Annual
Comprehensive income (loss) attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$11.28M	USD	1 Quarter
Comprehensive income (loss) attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$93.22M	USD	2 Qtrs

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