10-Q Filing

SOUTHWEST GAS HOLDINGS, INC. CIK: 1692115 Q2 2020

Filing Information

Form Type	10-Q
Accession Number	`0001692115-20-000054`
Period End Date	20200630
Filing Date	20200806
Fiscal Year	2020
Fiscal Period	Q2
XBRL Instance	swx-20200630_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 88 Income Statement 132 Cash Flow Statement 150 Stockholders Equity 18 Comprehensive Income 84

Balance Sheet 88 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`	120.00M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	55.91M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	55.01M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	55.91M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	55.01M	shares	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$7.81B	USD	Point-in-time
Gas plant	`PublicUtilitiesPropertyPlantandEquipmentGasPlant`	$8.09B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.31B	USD	Point-in-time
Less: accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.37B	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$185.03M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$217.62M	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$5.69B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$5.94B	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$784.17M	USD	Point-in-time
Other property and investments	`OtherPropertyAndInvestments`	$809.11M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$199.59M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$49.54M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$480.08M	USD	Point-in-time
Accounts receivable, net of allowances	`AccountsReceivableNetCurrent`	$474.10M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$79.10M	USD	Point-in-time
Accrued utility revenue	`AccruedUtilityRevenue`	$35.80M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$4.08M	USD	Point-in-time
Income taxes receivable, net	`IncomeTaxesReceivable`	$31.75M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	-	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasCost`	$44.41M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$147.66M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$180.96M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$859.86M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$867.20M	USD	Point-in-time
Goodwill	`Goodwill`	$343.02M	USD	Point-in-time
Goodwill	`Goodwill`	$337.98M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$856.00K	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$632.00K	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$474.74M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$496.94M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$813.35M	USD	Point-in-time
Total noncurrent assets	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$840.82M	USD	Point-in-time
Total assets	`Assets`	$8.43B	USD	Point-in-time
Total assets	`Assets`	$8.17B	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 55,909,903 and 55,007,433 shares)	`CommonStockValue`	$57.54M	USD	Point-in-time
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 55,909,903 and 55,007,433 shares)	`CommonStockValue`	$56.64M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.52B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.47B	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-55.62M	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-56.73M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.09B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.04B	USD	Point-in-time
Total equity	`StockholdersEquity`	$2.61B	USD	Point-in-time
Total equity	`StockholdersEquity`	$2.51B	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$84.54M	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$86.92M	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$2.64B	USD	Point-in-time
Long-term debt, less current maturities	`LongTermDebtNoncurrent`	$2.30B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$5.34B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$4.89B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$171.67M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$163.51M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$58.00M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$211.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$189.37M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$238.92M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$69.90M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$69.17M	USD	Point-in-time
Income taxes payable, net	`AccruedIncomeTaxesCurrent`	$2.07M	USD	Point-in-time
Income taxes payable, net	`AccruedIncomeTaxesCurrent`	-	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$48.22M	USD	Point-in-time
Accrued general taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$48.16M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$21.33M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$21.52M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$60.76M	USD	Point-in-time
Deferred purchased gas costs	`DeferredGasPurchasesCurrent`	$69.94M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$264.95M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$289.39M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.08B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$918.02M	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$631.39M	USD	Point-in-time
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits`	$599.84M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$395.00M	USD	Point-in-time
Accumulated removal costs	`OtherAccruedLiabilitiesNoncurrent`	$401.00M	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.20B	USD	Point-in-time
Other deferred credits and other long-term liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$1.14B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.17B	USD	Point-in-time
Total deferred income taxes and other credits	`OtherLiabilitiesNoncurrent`	$2.20B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$8.17B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$8.43B	USD	Point-in-time

Income Statement 132 line items

Line Item	Tag	Value	Unit	Period
Gas operating revenues	`RegulatedOperatingRevenueGas`	$765.26M	USD	2 Qtrs
Gas operating revenues	`RegulatedOperatingRevenueGas`	$779.39M	USD	2 Qtrs
Gas operating revenues	`RegulatedOperatingRevenueGas`	$258.71M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.37B	USD	Annual
Gas operating revenues	`RegulatedOperatingRevenueGas`	$262.43M	USD	1 Quarter
Gas operating revenues	`RegulatedOperatingRevenueGas`	$1.35B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.34B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$805.59M	USD	2 Qtrs
Utility infrastructure services revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$259.07M	USD	1 Quarter
Utility infrastructure services revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$1.37B	USD	Annual
Utility infrastructure services revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$763.86M	USD	2 Qtrs
Utility infrastructure services revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$253.41M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.59B	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$713.01M	USD	1 Quarter
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.17B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.00B	USD	Annual
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.55B	USD	2 Qtrs
Total operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$757.25M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$355.67M	USD	Annual
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$65.18M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$257.79M	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$228.29M	USD	2 Qtrs
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$67.47M	USD	1 Quarter
Net cost of gas sold	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$407.98M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$105.29M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$415.81M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$410.14M	USD	Annual
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$99.42M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$203.20M	USD	2 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$211.54M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$320.23M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$273.31M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$147.88M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$70.34M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$164.87M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$77.22M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$31.33M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$31.72M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$62.72M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.13M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.34M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$61.31M	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$702.66M	USD	2 Qtrs
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.48B	USD	Annual
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$430.22M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$402.20M	USD	1 Quarter
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$749.54M	USD	2 Qtrs
Utility infrastructure services expenses	`CostOfGoodsAndServicesSold`	$1.62B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$658.14M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.38B	USD	2 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.77B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$689.67M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$2.63B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.35B	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$195.35M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$392.41M	USD	Annual
Operating income	`OperatingIncomeLoss`	$369.88M	USD	Annual
Operating income	`OperatingIncomeLoss`	$54.87M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$67.57M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$215.94M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$26.45M	USD	1 Quarter
Net interest deductions	`InterestExpense`	$103.62M	USD	Annual
Net interest deductions	`InterestExpense`	$110.83M	USD	Annual
Net interest deductions	`InterestExpense`	$54.83M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$53.23M	USD	2 Qtrs
Net interest deductions	`InterestExpense`	$26.83M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-10.74M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$7.99M	USD	2 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-12.85M	USD	2 Qtrs
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$-2.40M	USD	Annual
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$7.92M	USD	1 Quarter
Other income (deductions)	`OtherNonoperatingIncomeExpense`	$1.15M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-45.24M	USD	2 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-25.68M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-121.57M	USD	Annual
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-67.67M	USD	2 Qtrs
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-18.52M	USD	1 Quarter
Total other income and (expenses)	`NonoperatingIncomeExpense`	$-106.02M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$29.18M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$148.27M	USD	2 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$263.87M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$270.83M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$49.05M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$150.11M	USD	2 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$6.35M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$9.17M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$63.84M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$59.52M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$31.89M	USD	2 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$35.38M	USD	2 Qtrs
Net income	`ProfitLoss`	$39.88M	USD	1 Quarter
Net income	`ProfitLoss`	$211.32M	USD	Annual
Net income	`ProfitLoss`	$22.83M	USD	1 Quarter
Net income	`ProfitLoss`	$200.02M	USD	Annual
Net income	`ProfitLoss`	$118.22M	USD	2 Qtrs
Net income	`ProfitLoss`	$112.89M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.52M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.74M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.35M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$776.00K	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.38M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.92M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$198.50M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$110.51M	USD	2 Qtrs
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$116.86M	USD	2 Qtrs
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$207.58M	USD	Annual
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$37.97M	USD	1 Quarter
Net income attributable to Southwest Gas Holdings, Inc.	`NetIncomeLoss`	$22.06M	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$0.68	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$3.77	USD	Annual
Basic (in USD per share)	`EarningsPerShareBasic`	$0.41	USD	1 Quarter
Basic (in USD per share)	`EarningsPerShareBasic`	$2.18	USD	2 Qtrs
Basic (in USD per share)	`EarningsPerShareBasic`	$2.00	USD	2 Qtrs
Basic (in USD per share)	`EarningsPerShareBasic`	$3.82	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.41	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$3.76	USD	Annual
Diluted (in USD per share)	`EarningsPerShareDiluted`	$2.18	USD	2 Qtrs
Diluted (in USD per share)	`EarningsPerShareDiluted`	$1.99	USD	2 Qtrs
Diluted (in USD per share)	`EarningsPerShareDiluted`	$0.68	USD	1 Quarter
Diluted (in USD per share)	`EarningsPerShareDiluted`	$3.82	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	55.10M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.91M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	55.46M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	53.65M	shares	2 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	53.94M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	55.39M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	54.00M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.72M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	55.53M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	55.17M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	51.98M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	55.45M	shares	2 Qtrs

Cash Flow Statement 150 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$39.88M	USD	1 Quarter
Net income	`ProfitLoss`	$211.32M	USD	Annual
Net income	`ProfitLoss`	$22.83M	USD	1 Quarter
Net income	`ProfitLoss`	$200.02M	USD	Annual
Net income	`ProfitLoss`	$118.22M	USD	2 Qtrs
Net income	`ProfitLoss`	$112.89M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$320.23M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$273.31M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$147.88M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$70.34M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$164.87M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$77.22M	USD	1 Quarter
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-31.83M	USD	2 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-49.55M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-53.45M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-31.12M	USD	2 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$5.77M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$61.38M	USD	Annual
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$9.75M	USD	2 Qtrs
Accounts receivable, net of allowances	`IncreaseDecreaseInAccountsReceivable`	$2.61M	USD	2 Qtrs
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-43.30M	USD	2 Qtrs
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$900.00K	USD	Annual
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-42.30M	USD	2 Qtrs
Accrued utility revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$700.00K	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-53.59M	USD	2 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-5.13M	USD	Annual
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$43.34M	USD	2 Qtrs
Deferred purchased gas costs	`IncreaseDecreaseInDeferredGasCost`	$-38.45M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-47.20M	USD	2 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$8.09M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-908.00K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-48.16M	USD	2 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$3.12M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$-2.27M	USD	2 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$9.02M	USD	2 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxes`	$16.53M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-78.54M	USD	2 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-54.99M	USD	2 Qtrs
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-17.72M	USD	Annual
Other current assets and liabilities	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-97.69M	USD	Annual
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$4.95M	USD	Annual
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$2.28M	USD	Annual
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$831.00K	USD	2 Qtrs
Gains on sale of equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$309.00K	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.33M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$6.53M	USD	Annual
Changes in undistributed stock compensation	`ShareBasedCompensation`	$4.70M	USD	2 Qtrs
Changes in undistributed stock compensation	`ShareBasedCompensation`	$7.51M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$1.97M	USD	2 Qtrs
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$4.38M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$5.01M	USD	Annual
Equity AFUDC	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.18M	USD	2 Qtrs
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$15.87M	USD	2 Qtrs
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$16.49M	USD	Annual
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$8.27M	USD	2 Qtrs
Changes in deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$13.45M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-54.82M	USD	2 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$26.04M	USD	Annual
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-6.45M	USD	2 Qtrs
Changes in other liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-61.13M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$597.10M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$278.42M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$375.14M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$560.25M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$890.00M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$423.44M	USD	2 Qtrs
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$898.48M	USD	Annual
Construction expenditures and property additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$471.58M	USD	2 Qtrs
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$250.00K	USD	2 Qtrs
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$28.36M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$266.70M	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$19.53M	USD	2 Qtrs
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$4.10M	USD	2 Qtrs
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$14.79M	USD	Annual
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$9.48M	USD	2 Qtrs
Changes in customer advances	`ChangesInCustomerAdvancesInvestingActivities`	$13.62M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-2.94M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-5.04M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-1.16M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-19.04M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-885.71M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-480.47M	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-414.54M	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.15B	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$102.74M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$388.01M	USD	Annual
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$55.50M	USD	2 Qtrs
Issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$110.70M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$61.45M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$107.99M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$56.74M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividendsCommonStock`	$120.83M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$730.30M	USD	Annual
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$421.59M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$620.30M	USD	2 Qtrs
Issuance of long-term debt, net	`ProceedsFromIssuanceOfLongTermDebt`	$531.37M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$117.54M	USD	2 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$277.72M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$53.60M	USD	2 Qtrs
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$190.59M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-150.00M	USD	2 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-104.00M	USD	2 Qtrs
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-46.00M	USD	Annual
Change in credit facility and commercial paper	`ProceedsFromRepaymentsOfLinesOfCreditAndCommercialPaper`	$-2.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-152.00M	USD	2 Qtrs
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-153.00M	USD	2 Qtrs
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$58.00M	USD	Annual
Change in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-22.50M	USD	Annual
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$207.00K	USD	Annual
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$107.00K	USD	2 Qtrs
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$439.00K	USD	Annual
Principal payments on finance lease obligations	`FinanceLeasePrincipalPayments`	$102.00K	USD	2 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.74M	USD	Annual
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.74M	USD	2 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.86M	USD	2 Qtrs
Withholding remittance - share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.11M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.67M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-2.81M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.36M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-966.00K	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$449.84M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$590.93M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$155.07M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$189.62M	USD	2 Qtrs
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-12.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-84.00K	USD	Annual
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$72.00K	USD	2 Qtrs
Effects of currency translation on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-170.00K	USD	2 Qtrs
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$3.72M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-46.91M	USD	2 Qtrs
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$161.15M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$150.05M	USD	2 Qtrs
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$38.45M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$199.59M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.54M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.73M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.36M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$38.45M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$199.59M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.54M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.73M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.36M	USD	Point-in-time
Interest paid, net of amounts capitalized	`InterestPaidNet`	$50.00M	USD	2 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$51.43M	USD	2 Qtrs
Interest paid, net of amounts capitalized	`InterestPaidNet`	$103.69M	USD	Annual
Interest paid, net of amounts capitalized	`InterestPaidNet`	$96.48M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$-19.41M	USD	2 Qtrs
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$-13.45M	USD	Annual
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$1.83M	USD	2 Qtrs
Income taxes paid (received), net	`IncomeTaxesPaidNet`	$-18.49M	USD	Annual

Stockholders Equity 18 line items

Line Item	Tag	Value	Unit	Period
Beginning balance (in shares)	`CommonStockSharesOutstanding`	55.91M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesOutstanding`	55.01M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.61B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.42B	USD	Point-in-time
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.27M	USD	2 Qtrs
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.27M	USD	2 Qtrs
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-636.00K	USD	1 Quarter
FSIRS amounts reclassified to net income, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-635.00K	USD	1 Quarter
Ending balance (in shares)	`CommonStockSharesOutstanding`	55.91M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	55.01M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.61B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$2.42B	USD	Point-in-time
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$1.14	USD	2 Qtrs
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$1.09	USD	2 Qtrs
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.57	USD	1 Quarter
Dividends declared per share (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.55	USD	1 Quarter

Comprehensive Income 84 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$39.88M	USD	1 Quarter
Net income	`ProfitLoss`	$211.32M	USD	Annual
Net income	`ProfitLoss`	$22.83M	USD	1 Quarter
Net income	`ProfitLoss`	$200.02M	USD	Annual
Net income	`ProfitLoss`	$118.22M	USD	2 Qtrs
Net income	`ProfitLoss`	$112.89M	USD	2 Qtrs
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-15.52M	USD	Annual
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-54.03M	USD	Annual
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Net actuarial loss	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$220.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$483.00K	USD	2 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$923.00K	USD	Annual
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$440.00K	USD	2 Qtrs
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$242.00K	USD	1 Quarter
Amortization of prior service cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$990.00K	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-7.19M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-14.38M	USD	2 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-21.66M	USD	Annual
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-8.88M	USD	2 Qtrs
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-4.44M	USD	1 Quarter
Amortization of net actuarial loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-23.26M	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	$1.43M	USD	Annual
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	2 Qtrs
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Prior service cost	`OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$4.06M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$12.76M	USD	2 Qtrs
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$2.90M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$-23.45M	USD	Annual
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$6.38M	USD	1 Quarter
Regulatory adjustment	`OtherComprehensiveIncomeDefinedBenefitPlansRegulatoryAdjustmentNetOfTax`	$8.13M	USD	2 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-4.23M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.03M	USD	1 Quarter
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.24M	USD	2 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$7.83M	USD	Annual
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-2.06M	USD	2 Qtrs
Net defined benefit pension plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-619.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.27M	USD	2 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.27M	USD	2 Qtrs
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-2.54M	USD	Annual
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-636.00K	USD	1 Quarter
Amounts reclassified into net income	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-635.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$636.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$1.27M	USD	2 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$1.27M	USD	2 Qtrs
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$2.54M	USD	Annual
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$635.00K	USD	1 Quarter
Net forward-starting interest rate swaps	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$2.54M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$169.00K	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$787.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.75M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.58M	USD	2 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.79M	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-2.21M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.04M	USD	1 Quarter
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.09M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$6.94M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-7.04M	USD	Annual
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.11M	USD	2 Qtrs
Total other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.46M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$122.30M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$114.00M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$206.96M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$43.34M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$24.87M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$204.28M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$3.74M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.52M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$776.00K	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.35M	USD	2 Qtrs
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.38M	USD	2 Qtrs
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.92M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$41.42M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$24.10M	USD	1 Quarter
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$205.44M	USD	Annual
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$120.95M	USD	2 Qtrs
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$111.62M	USD	2 Qtrs
Comprehensive income attributable to Southwest Gas Holdings, Inc.	`ComprehensiveIncomeNetOfTax`	$200.54M	USD	Annual

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