10-Q Filing

SOUTHWEST GAS CORP CIK: 92416 Q3 2014

Filing Information

Form Type	10-Q
Accession Number	`0001193125-14-399919`
Period End Date	20140930
Filing Date	20141106
Fiscal Year	2014
Fiscal Period	Q3
XBRL Instance	swx-20140930.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 86 Income Statement 137 Cash Flow Statement 131 Stockholders Equity 70

Balance Sheet 86 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`	$5.49B	USD	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.52M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$5.25B	USD	Point-in-time
Common stock, issued	`CommonStockSharesIssued`	46.36M	shares	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.36M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.87B	USD	Point-in-time
Common stock, outstanding	`CommonStockSharesOutstanding`	46.52M	shares	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.95B	USD	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1`	$730.00K	USD	Point-in-time
Acquisition adjustments, net	`PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1`	$595.00K	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$77.18M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$101.41M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.49B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$3.61B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$265.47M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$260.87M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$25.53M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$41.08M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$22.08M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$13.85M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$39.16M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$184.79M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$219.47M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$72.70M	USD	Point-in-time
Accrued utility revenue	`OtherReceivables`	$32.00M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$3.79M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$20.40M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsNetCurrent`	$31.13M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$78.32M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$18.22M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$95.84M	USD	Point-in-time
Prepaids and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$108.29M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$494.67M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$450.52M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$323.52M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$317.36M	USD	Point-in-time
Total assets	`Assets`	$4.64B	USD	Point-in-time
Total assets	`Assets`	$4.57B	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,518,555 and 46,356,125 shares)	`CommonStockValue`	$48.15M	USD	Point-in-time
Common stock, $1 par (authorized - 60,000,000 shares; issued and outstanding - 46,518,555 and 46,356,125 shares)	`CommonStockValue`	$47.99M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$846.13M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$840.52M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-38.61M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-41.70M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$567.71M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$598.55M	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.41B	USD	Point-in-time
Total Southwest Gas Corporation equity	`StockholdersEquity`	$1.45B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-2.26M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-2.13M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.45B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.41B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.44B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$1.38B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.89B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.79B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$11.27M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$11.11M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$183.51M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$98.99M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$71.32M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$73.37M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$39.68M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$39.70M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$17.92M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$23.32M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesCurrent`	$11.30M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$108.58M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$138.10M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$394.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$434.16M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$671.56M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$674.41M	USD	Point-in-time
Taxes payable	`TaxesPayableNoncurrent`	$284.00K	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$297.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$279.00M	USD	Point-in-time
Other deferred credits	`OtherDeferredCreditsNoncurrent`	$383.59M	USD	Point-in-time
Other deferred credits	`OtherDeferredCreditsNoncurrent`	$389.44M	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.36B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.34B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$4.57B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$4.64B	USD	Point-in-time

Income Statement 137 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.36B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.27B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$984.00M	USD	3 Qtrs
Gas operating revenues	`RegulatedOperatingRevenueGas`	$195.03M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$226.03M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$927.50M	USD	3 Qtrs
Construction revenues	`ConstructionRevenue`	$675.73M	USD	Annual
Construction revenues	`ConstructionRevenue`	$510.02M	USD	3 Qtrs
Construction revenues	`ConstructionRevenue`	$633.97M	USD	Annual
Construction revenues	`ConstructionRevenue`	$192.31M	USD	1 Quarter
Construction revenues	`ConstructionRevenue`	$484.93M	USD	3 Qtrs
Construction revenues	`ConstructionRevenue`	$206.45M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$432.48M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.49B	USD	3 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.41B	USD	3 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$387.35M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.03B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.90B	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$317.74M	USD	3 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$47.75M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$480.61M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$72.99M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$362.35M	USD	3 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$409.36M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$95.98M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$293.42M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$93.39M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$390.33M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$288.00M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$379.62M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$62.04M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$233.25M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$176.25M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$247.68M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$58.74M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$187.11M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$11.15M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$11.84M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$44.68M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$45.79M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$34.26M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$34.02M	USD	3 Qtrs
Construction expenses	`ConstructionAndDevelopmentCosts`	$444.78M	USD	3 Qtrs
Construction expenses	`ConstructionAndDevelopmentCosts`	$422.97M	USD	3 Qtrs
Construction expenses	`ConstructionAndDevelopmentCosts`	$545.42M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$595.09M	USD	Annual
Construction expenses	`ConstructionAndDevelopmentCosts`	$167.58M	USD	1 Quarter
Construction expenses	`ConstructionAndDevelopmentCosts`	$173.94M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$414.19M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.76B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.24B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$1.32B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$381.20M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.61B	USD	Annual
Operating income	`OperatingIncomeLoss`	$272.88M	USD	Annual
Operating income	`OperatingIncomeLoss`	$172.11M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$6.14M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$288.65M	USD	Annual
Operating income	`OperatingIncomeLoss`	$173.44M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$18.29M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$46.27M	USD	3 Qtrs
Net interest deductions	`InterestExpense`	$62.46M	USD	Annual
Net interest deductions	`InterestExpense`	$15.10M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$52.24M	USD	3 Qtrs
Net interest deductions	`InterestExpense`	$69.68M	USD	Annual
Net interest deductions	`InterestExpense`	$17.42M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$2.67M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$440.00K	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$4.92M	USD	3 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$9.03M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$8.03M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$8.19M	USD	3 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-47.33M	USD	3 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-60.65M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-38.08M	USD	3 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-54.44M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-12.43M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-16.98M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$212.23M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$1.31M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-6.29M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$135.37M	USD	3 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$234.22M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$124.78M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$-3.23M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$72.79M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$84.43M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$42.53M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$47.68M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$-618.00K	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-3.06M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$87.68M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$139.44M	USD	Annual
Net income (loss)	`ProfitLoss`	$1.93M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$149.79M	USD	Annual
Net income (loss)	`ProfitLoss`	$82.25M	USD	3 Qtrs
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-129.00K	USD	3 Qtrs
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-193.00K	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-243.00K	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-620.00K	USD	Annual
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-43.00K	USD	1 Quarter
Net income (loss) attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-333.00K	USD	3 Qtrs
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$1.97M	USD	1 Quarter
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$150.41M	USD	Annual
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$82.38M	USD	3 Qtrs
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$-2.86M	USD	1 Quarter
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$139.68M	USD	Annual
Net income (loss) attributable to Southwest Gas Corporation	`NetIncomeLoss`	$88.02M	USD	3 Qtrs
Basic earnings (loss) per share	`EarningsPerShareBasic`	$1.90	USD	3 Qtrs
Basic earnings (loss) per share	`EarningsPerShareBasic`	$3.25	USD	Annual
Basic earnings (loss) per share	`EarningsPerShareBasic`	$-0.06	USD	1 Quarter
Basic earnings (loss) per share	`EarningsPerShareBasic`	$0.04	USD	1 Quarter
Basic earnings (loss) per share	`EarningsPerShareBasic`	$1.77	USD	3 Qtrs
Basic earnings (loss) per share	`EarningsPerShareBasic`	$3.01	USD	Annual
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$2.98	USD	Annual
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$1.76	USD	3 Qtrs
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$3.22	USD	Annual
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$0.04	USD	1 Quarter
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$-0.06	USD	1 Quarter
Diluted earnings (loss) per share	`EarningsPerShareDiluted`	$1.88	USD	3 Qtrs
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.99	USD	3 Qtrs
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.09	USD	3 Qtrs
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.28	USD	Annual
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.36	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$0.33	USD	1 Quarter
Dividends declared per share	`CommonStockDividendsPerShareDeclared`	$1.43	USD	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.51M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.34M	shares	1 Quarter
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.45M	shares	Annual
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.31M	shares	3 Qtrs
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.48M	shares	3 Qtrs
Average number of common shares outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	46.27M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.97M	shares	1 Quarter
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.73M	shares	3 Qtrs
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.70M	shares	Annual
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.93M	shares	3 Qtrs
Average shares outstanding (assuming dilution)	`WeightedAverageNumberOfDilutedSharesOutstanding`	46.90M	shares	Annual

Cash Flow Statement 131 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$87.68M	USD	3 Qtrs
Net income	`ProfitLoss`	$139.44M	USD	Annual
Net income	`ProfitLoss`	$1.93M	USD	1 Quarter
Net income	`ProfitLoss`	$149.79M	USD	Annual
Net income	`ProfitLoss`	$82.25M	USD	3 Qtrs
Net income	`ProfitLoss`	$-3.06M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$62.04M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$176.25M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$233.25M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$187.11M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$247.68M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$58.74M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxesCurrent`	$-76.64M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxesCurrent`	$-62.62M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxesCurrent`	$-43.70M	USD	3 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxesCurrent`	$-37.69M	USD	3 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-41.31M	USD	3 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$29.19M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$-34.68M	USD	3 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$3.85M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-40.70M	USD	3 Qtrs
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$700.00K	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$-40.70M	USD	3 Qtrs
Accrued utility revenue	`IncreaseDecreaseInOtherReceivables`	$1.10M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$78.71M	USD	3 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$108.74M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$60.10M	USD	3 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$92.53M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$12.79M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-3.03M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-85.51M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-54.82M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-1.24M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-14.70M	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-189.00K	USD	Annual
Accrued taxes	`IncreaseDecreaseInPropertyAndOtherTaxesPayable`	$-16.87M	USD	3 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-20.94M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$11.94M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-43.65M	USD	3 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-27.79M	USD	3 Qtrs
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$6.78M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$5.66M	USD	3 Qtrs
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$6.52M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$2.99M	USD	3 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.13M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.61M	USD	3 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.37M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$5.44M	USD	3 Qtrs
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.31M	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.66M	USD	3 Qtrs
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.19M	USD	Annual
AFUDC and property-related changes	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.57M	USD	3 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$22.45M	USD	3 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$17.42M	USD	3 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$25.09M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$16.68M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$28.57M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$5.45M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$18.34M	USD	3 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$7.52M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$324.55M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$268.54M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$339.57M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$261.90M	USD	3 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$293.28M	USD	3 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$403.12M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$254.44M	USD	3 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$374.18M	USD	Annual
Changes in customer advances	`ChangeInCustomerAdvances`	$15.69M	USD	Annual
Changes in customer advances	`ChangeInCustomerAdvances`	$13.12M	USD	3 Qtrs
Changes in customer advances	`ChangeInCustomerAdvances`	$5.20M	USD	3 Qtrs
Changes in customer advances	`ChangeInCustomerAdvances`	$23.39M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$11.84M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$11.60M	USD	Annual
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$6.41M	USD	3 Qtrs
Miscellaneous inflows	`ProceedsFromOtherInvestingActivities`	$9.78M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-242.83M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-270.37M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-375.58M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-339.19M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$608.00K	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$1.45M	USD	3 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$419.00K	USD	3 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$1.57M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$49.30M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$44.24M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$64.59M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$57.85M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$37.72M	USD	3 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$63.67M	USD	3 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$285.34M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$99.55M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$179.85M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$21.53M	USD	3 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$130.27M	USD	3 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$28.27M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$39.00M	USD	3 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$-100.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$40.00M	USD	3 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCredit`	$110.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-33.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$33.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$33.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$1.24M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-759.00K	USD	3 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$6.56M	USD	3 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$6.42M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$61.32M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-37.39M	USD	3 Qtrs
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-11.68M	USD	3 Qtrs
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$25.31M	USD	Annual
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-1.91M	USD	3 Qtrs
Change in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-8.23M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$25.53M	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`	$22.08M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$13.85M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$39.16M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$13.85M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$22.08M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$39.16M	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`	$25.53M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$42.70M	USD	3 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$58.08M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$60.26M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$41.16M	USD	3 Qtrs
Income taxes paid	`IncomeTaxesPaidNet`	$16.74M	USD	Annual
Income taxes paid	`IncomeTaxesPaidNet`	$4.93M	USD	3 Qtrs
Income taxes paid	`IncomeTaxesPaidNet`	$5.80M	USD	Annual
Income taxes paid	`IncomeTaxesPaidNet`	$14.82M	USD	3 Qtrs

Stockholders Equity 70 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$87.68M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$139.44M	USD	Annual
Net income (loss)	`ProfitLoss`	$1.93M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$149.79M	USD	Annual
Net income (loss)	`ProfitLoss`	$82.25M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-3.06M	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-46.41M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$62.21M	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$55.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$165.00K	USD	3 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$164.00K	USD	3 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$164.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$55.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$221.00K	USD	Annual
Amortization of transition obligation	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax`	$-135.00K	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-5.30M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-16.30M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.67M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-15.89M	USD	3 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-11.00M	USD	3 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-19.86M	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$1.50M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$3.21M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$72.18M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$14.11M	USD	3 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$4.70M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$9.63M	USD	3 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-23.29M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.53M	USD	3 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.95M	USD	3 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-651.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$4.46M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-6.56M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-512.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.07M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.55M	USD	3 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.55M	USD	3 Qtrs
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`	$-518.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$1.55M	USD	3 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$518.00K	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`	$1.55M	USD	3 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.07M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.51M	USD	3 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$8.63M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.39M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.09M	USD	3 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.17M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.03M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$85.34M	USD	3 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$148.07M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.96M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$147.40M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-1.89M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$91.19M	USD	3 Qtrs
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-620.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-193.00K	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-43.00K	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-129.00K	USD	3 Qtrs
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-333.00K	USD	3 Qtrs
Comprehensive income (loss) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-243.00K	USD	Annual
Comprehensive (loss) income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$-1.70M	USD	1 Quarter
Comprehensive (loss) income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$3.00M	USD	1 Quarter
Comprehensive (loss) income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$85.47M	USD	3 Qtrs
Comprehensive (loss) income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$148.02M	USD	Annual
Comprehensive (loss) income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$148.31M	USD	Annual
Comprehensive (loss) income attributable to Southwest Gas Corporation	`ComprehensiveIncomeNetOfTax`	$91.52M	USD	3 Qtrs

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