10-Q Filing

SOUTHWEST GAS HOLDINGS, INC. CIK: 1692115 Q3 2019

Filing Information

Form Type	10-Q
Accession Number	`0001692115-19-000071`
Period End Date	20190930
Filing Date	20191106
Fiscal Year	2019
Fiscal Period	Q3
XBRL Instance	swx930201910q_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 92 Income Statement 132 Cash Flow Statement 146 Stockholders Equity 20 Comprehensive Income 78

Balance Sheet 92 line items

Line Item	Tag	Value	Unit	Period
Common stock, par (in USD per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par (in USD per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	53.03M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	54.62M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	53.03M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$7.13B	USD	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$7.55B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.23B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.30B	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$288.57M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$193.03M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$5.09B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$5.54B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$623.55M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$768.68M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$28.48M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$85.36M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$413.93M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$434.15M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$35.80M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$77.20M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$14.65M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$26.61M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$4.93M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$49.80M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$190.55M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$243.70M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$839.77M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$765.40M	USD	Point-in-time
Goodwill	`Goodwill`	$339.95M	USD	Point-in-time
Goodwill	`Goodwill`	$359.05M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$896.00K	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$1.26M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$429.72M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$440.86M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$770.56M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$801.17M	USD	Point-in-time
Total assets	`Assets`	$7.36B	USD	Point-in-time
Total assets	`Assets`	$7.84B	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 54,624,090 and 53,026,848 shares)	`CommonStockValue`	$56.25M	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 54,624,090 and 53,026,848 shares)	`CommonStockValue`	$54.66M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.44B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.31B	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-47.77M	USD	Point-in-time
Accumulated other comprehensive income (loss), net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-52.67M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$977.50M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$944.28M	USD	Point-in-time
Total Southwest Gas Holdings, Inc. equity	`StockholdersEquity`	$2.25B	USD	Point-in-time
Total Southwest Gas Holdings, Inc. equity	`StockholdersEquity`	$2.42B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	-	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-452.00K	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.25B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.95B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.42B	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$84.35M	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$81.83M	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$2.46B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$2.11B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$4.44B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$4.97B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$33.06M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$38.16M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$30.00M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$152.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$248.99M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$188.90M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$68.90M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$67.94M	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$1.32M	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$1.08M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$52.36M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$43.56M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$21.37M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$34.74M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$88.03M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$79.76M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$290.88M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$279.93M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$782.34M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$938.64M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$577.93M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$529.20M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$383.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$392.00M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.12B	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.07B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.09B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$1.98B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$7.36B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$7.84B	USD	Point-in-time

Income Statement 132 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$987.51M	USD	3 Qtrs
Gas operating revenues	`RegulatedOperatingRevenueGas`	$989.37M	USD	3 Qtrs
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.35B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.36B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$217.52M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$209.98M	USD	1 Quarter
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.11B	USD	3 Qtrs
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.70B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$450.62M	USD	1 Quarter
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.48B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$515.25M	USD	1 Quarter
Utility infrastructure services revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.28B	USD	3 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.83B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.27B	USD	3 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.06B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$668.15M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$725.23M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$2.09B	USD	3 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$292.85M	USD	3 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$319.10M	USD	3 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$393.14M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$35.07M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$412.31M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$49.90M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$406.14M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$321.19M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$105.51M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$414.29M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$109.65M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$313.29M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$75.37M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$185.94M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$247.80M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$223.25M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$286.52M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$62.16M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.04M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$44.96M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$59.58M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$61.58M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$46.64M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.31M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.35B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$395.86M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.53B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$451.57M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.01B	USD	3 Qtrs
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.15B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$1.87B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$628.47M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$2.69B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.48B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$686.97M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$2.04B	USD	3 Qtrs
Operating income (loss)	`OperatingIncomeLoss`	$358.10M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$39.68M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$368.46M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$38.26M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$222.58M	USD	3 Qtrs
Operating income (loss)	`OperatingIncomeLoss`	$233.61M	USD	3 Qtrs
Net interest deductions	`InterestExpense`	$27.43M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$70.83M	USD	3 Qtrs
Net interest deductions	`InterestExpense`	$106.50M	USD	Annual
Net interest deductions	`InterestExpense`	$24.55M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$80.66M	USD	3 Qtrs
Net interest deductions	`InterestExpense`	$92.03M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$889.00K	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-6.15M	USD	3 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$6.83M	USD	3 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-6.40M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-4.45M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-1.16M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-28.59M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-23.66M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-98.43M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-76.98M	USD	3 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-73.83M	USD	3 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-110.95M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$145.60M	USD	3 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$257.51M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$16.02M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$259.67M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$9.67M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$159.77M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$63.29M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$3.14M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$33.42M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$35.03M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$3.69M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$51.10M	USD	Annual
Net income	`ProfitLoss`	$112.18M	USD	3 Qtrs
Net income	`ProfitLoss`	$12.33M	USD	1 Quarter
Net income	`ProfitLoss`	$124.74M	USD	3 Qtrs
Net income	`ProfitLoss`	$6.53M	USD	1 Quarter
Net income	`ProfitLoss`	$194.22M	USD	Annual
Net income	`ProfitLoss`	$208.57M	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.52M	USD	3 Qtrs
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-797.00K	USD	3 Qtrs
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.69M	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-866.00K	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.17M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$209.44M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$112.97M	USD	3 Qtrs
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$191.52M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$122.22M	USD	3 Qtrs
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$12.33M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$5.35M	USD	1 Quarter
Basic earnings per share (in USD per share)	`EarningsPerShareBasic`	$2.26	USD	3 Qtrs
Basic earnings per share (in USD per share)	`EarningsPerShareBasic`	$3.60	USD	Annual
Basic earnings per share (in USD per share)	`EarningsPerShareBasic`	$4.30	USD	Annual
Basic earnings per share (in USD per share)	`EarningsPerShareBasic`	$0.25	USD	1 Quarter
Basic earnings per share (in USD per share)	`EarningsPerShareBasic`	$0.10	USD	1 Quarter
Basic earnings per share (in USD per share)	`EarningsPerShareBasic`	$2.31	USD	3 Qtrs
Diluted earnings per share (in USD per share)	`EarningsPerShareDiluted`	$2.31	USD	3 Qtrs
Diluted earnings per share (in USD per share)	`EarningsPerShareDiluted`	$3.59	USD	Annual
Diluted earnings per share (in USD per share)	`EarningsPerShareDiluted`	$2.26	USD	3 Qtrs
Diluted earnings per share (in USD per share)	`EarningsPerShareDiluted`	$0.10	USD	1 Quarter
Diluted earnings per share (in USD per share)	`EarningsPerShareDiluted`	$0.25	USD	1 Quarter
Diluted earnings per share (in USD per share)	`EarningsPerShareDiluted`	$4.29	USD	Annual
Average number of common shares (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	48.92M	shares	3 Qtrs
Average number of common shares (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	53.22M	shares	Annual
Average number of common shares (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	48.73M	shares	Annual
Average number of common shares (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	54.67M	shares	1 Quarter
Average number of common shares (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	54.00M	shares	3 Qtrs
Average number of common shares (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	49.49M	shares	1 Quarter
Average shares (assuming dilution) (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	48.78M	shares	Annual
Average shares (assuming dilution) (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	49.55M	shares	1 Quarter
Average shares (assuming dilution) (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	54.75M	shares	1 Quarter
Average shares (assuming dilution) (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.29M	shares	Annual
Average shares (assuming dilution) (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	54.06M	shares	3 Qtrs
Average shares (assuming dilution) (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	48.97M	shares	3 Qtrs

Cash Flow Statement 146 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$112.18M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$12.33M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$124.74M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$6.53M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$194.22M	USD	Annual
Net income (loss)	`ProfitLoss`	$208.57M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$75.37M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$185.94M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$247.80M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$223.25M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$286.52M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$62.16M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-50.19M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-36.21M	USD	3 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-60.93M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-46.10M	USD	3 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$1.66M	USD	3 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$27.28M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$19.61M	USD	3 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$33.82M	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInUnbilledReceivables`	$-41.40M	USD	3 Qtrs
Accrued utility revenue	`IncreaseDecreaseInUnbilledReceivables`	$500.00K	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInUnbilledReceivables`	$-43.60M	USD	3 Qtrs
Accrued utility revenue	`IncreaseDecreaseInUnbilledReceivables`	$1.20M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-100.76M	USD	3 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-84.28M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$54.80M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$36.61M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-46.08M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-1.89M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$14.32M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-48.62M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$-2.84M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$-4.96M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$-12.42M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$-9.84M	USD	3 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-1.25M	USD	3 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-74.05M	USD	3 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-18.73M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$50.00M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$3.16M	USD	3 Qtrs
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$3.86M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$3.74M	USD	Annual
Gains on sale	`GainLossOnSaleOfPropertyPlantEquipment`	$997.00K	USD	3 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.69M	USD	3 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.07M	USD	3 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$7.49M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.38M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$5.77M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.03M	USD	3 Qtrs
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.25M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$3.18M	USD	3 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$15.86M	USD	3 Qtrs
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$11.10M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$18.30M	USD	Annual
Changes in other assets and deferred charges	`IncreaseDecreaseInOtherOperatingAssets`	$10.50M	USD	3 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$33.24M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-3.75M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-4.58M	USD	3 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-9.79M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$478.10M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$499.95M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$378.49M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$407.39M	USD	3 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$719.39M	USD	3 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$560.16M	USD	3 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$733.82M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$925.13M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$4.21M	USD	3 Qtrs
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$19.53M	USD	3 Qtrs
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$266.70M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$98.41M	USD	Annual
Changes in customer advances	`IncreaseDecreaseInCustomerAdvances`	$17.46M	USD	Annual
Changes in customer advances	`IncreaseDecreaseInCustomerAdvances`	$11.05M	USD	3 Qtrs
Changes in customer advances	`IncreaseDecreaseInCustomerAdvances`	$13.32M	USD	Annual
Changes in customer advances	`IncreaseDecreaseInCustomerAdvances`	$15.05M	USD	3 Qtrs
Miscellaneous inflows	`PaymentsForProceedsFromOtherInvestingActivities`	$-12.86M	USD	3 Qtrs
Miscellaneous inflows	`PaymentsForProceedsFromOtherInvestingActivities`	$-13.38M	USD	Annual
Miscellaneous inflows	`PaymentsForProceedsFromOtherInvestingActivities`	$-11.31M	USD	Annual
Miscellaneous inflows	`PaymentsForProceedsFromOtherInvestingActivities`	$-3.83M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-711.01M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.16B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-807.59M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-549.50M	USD	3 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$121.83M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$391.51M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$92.23M	USD	3 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$129.34M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$112.05M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$86.34M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$74.53M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$98.16M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$783.75M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$480.99M	USD	3 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$566.79M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$482.61M	USD	3 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$382.49M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$221.18M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$127.17M	USD	3 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$143.76M	USD	3 Qtrs
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-122.00M	USD	3 Qtrs
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-183.00M	USD	3 Qtrs
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-79.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-1.50M	USD	Annual
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$606.00K	USD	Annual
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$422.00K	USD	3 Qtrs
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$387.00K	USD	Annual
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$161.00K	USD	3 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.88M	USD	Annual
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.09M	USD	Annual
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.86M	USD	3 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.88M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-456.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.12M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-3.09M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$1.17M	USD	3 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$339.35M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$620.64M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$275.58M	USD	3 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$167.51M	USD	3 Qtrs
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-289.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$157.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$139.00K	USD	3 Qtrs
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.00K	USD	3 Qtrs
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-56.88M	USD	3 Qtrs
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$25.55M	USD	3 Qtrs
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-40.69M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$10.02M	USD	Annual
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.36M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$28.48M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$59.15M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$43.62M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$69.17M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.36M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$28.48M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$59.15M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$43.62M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$69.17M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$75.74M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$49.57M	USD	3 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$62.16M	USD	3 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$99.16M	USD	Annual
Income taxes paid (received)	`IncomeTaxesPaidNet`	$18.26M	USD	3 Qtrs
Income taxes paid (received)	`IncomeTaxesPaidNet`	$371.00K	USD	3 Qtrs
Income taxes paid (received)	`IncomeTaxesPaidNet`	$20.25M	USD	Annual
Income taxes paid (received)	`IncomeTaxesPaidNet`	$-16.67M	USD	Annual

Stockholders Equity 20 line items

Line Item	Tag	Value	Unit	Period
Beginning balance (in shares)	`CommonStockSharesOutstanding`	54.62M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesOutstanding`	53.03M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.25B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.95B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.42B	USD	Point-in-time
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-635.00K	USD	1 Quarter
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.91M	USD	3 Qtrs
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.43M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.91M	USD	3 Qtrs
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.54M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-636.00K	USD	1 Quarter
Ending balance (in shares)	`CommonStockSharesOutstanding`	54.62M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	53.03M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.25B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.95B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.42B	USD	Point-in-time
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$1.56	USD	3 Qtrs
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$1.64	USD	3 Qtrs
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.55	USD	1 Quarter
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.52	USD	1 Quarter

Comprehensive Income 78 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$112.18M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$12.33M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$124.74M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$6.53M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$194.22M	USD	Annual
Net income (loss)	`ProfitLoss`	$208.57M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	3 Qtrs
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	3 Qtrs
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-32.70M	USD	Annual
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial gain (loss)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-15.52M	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$969.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$254.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$977.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$762.00K	USD	3 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$241.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$724.00K	USD	3 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-13.32M	USD	3 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-19.16M	USD	3 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-23.11M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-4.44M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-19.71M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-6.39M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-6.02M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$5.75M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$1.21M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$12.19M	USD	3 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$4.07M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$17.24M	USD	3 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.61M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-3.95M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-618.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-2.69M	USD	3 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-895.00K	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.86M	USD	3 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-635.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.91M	USD	3 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.43M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.91M	USD	3 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.54M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-636.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$635.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$636.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.54M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$1.91M	USD	3 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$1.91M	USD	3 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.43M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.13M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.00M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-447.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$599.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-877.00K	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.09M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.59M	USD	3 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.27M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$5.62M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.89M	USD	3 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.13M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$806.00K	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$14.46M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$129.63M	USD	3 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$207.30M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$199.83M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$7.33M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$115.77M	USD	3 Qtrs
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-797.00K	USD	3 Qtrs
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-866.00K	USD	Annual
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.17M	USD	1 Quarter
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.52M	USD	3 Qtrs
Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.69M	USD	Annual
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$14.46M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$6.16M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$197.14M	USD	Annual
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$127.11M	USD	3 Qtrs
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$116.56M	USD	3 Qtrs
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$208.17M	USD	Annual

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