$MGEE
MGE ENERGY INC Stock $mgee

$mgee Overview Financials Valuation SEC Filings Company Website

2015 Q3 Form 10-Q Financial Statement

#000116172815000014 Filed on August 06, 2015

Income Statement

Concept	2015 Q3	2015 Q2	2014 Q2
Revenue	$140.8M	$122.1M	$128.8M
YoY Change	4.19%	-5.16%	0.37%
Cost Of Revenue	$22.80M	$27.90M	$37.10M
YoY Change	-29.41%	-24.8%	-1.85%
Gross Profit	$118.0M	$94.20M	$91.70M
YoY Change	14.79%	2.73%	1.33%
Gross Profit Margin	83.81%	77.13%	71.22%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$11.20M	$11.00M	$10.10M
YoY Change	7.69%	8.91%	5.21%
% of Gross Profit	9.49%	11.68%	11.01%
Operating Expenses	$71.80M	$70.20M	$67.20M
YoY Change	14.51%	4.46%	1.82%
Operating Profit	$46.18M	$24.05M	$24.44M
YoY Change	15.1%	-1.6%	-0.23%
Interest Expense	-$5.000M	-$5.000M	-$4.900M
YoY Change	-1.96%	2.04%	4.26%
% of Operating Profit	-10.83%	-20.79%	-20.05%
Other Income/Expense, Net	$2.564M	$2.446M	$3.548M
YoY Change	-2.73%	-31.06%	30.87%
Pretax Income	$43.71M	$21.49M	$23.12M
YoY Change	16.19%	-7.07%	2.53%
Income Tax	$15.35M	$8.008M	$9.034M
% Of Pretax Income	35.12%	37.27%	39.07%
Net Earnings	$28.35M	$13.48M	$14.09M
YoY Change	21.54%	-4.32%	1.41%
Net Earnings / Revenue	20.14%	11.04%	10.94%
Basic Earnings Per Share
Diluted Earnings Per Share	$818.4K	$389.0K	$406.3K
COMMON SHARES
Basic Shares Outstanding	34.67M shares		34.67M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2015 Q3	2015 Q2	2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$94.30M	$75.80M	$87.90M
YoY Change	6.31%	-13.77%	107.8%
Cash & Equivalents	$94.27M	$75.79M	$87.91M
Short-Term Investments
Other Short-Term Assets	$9.916M	$10.90M	$9.663M
YoY Change	2.76%	12.75%	-84.88%
Inventory	$50.50M	$47.90M	$34.50M
Prepaid Expenses
Receivables	$35.51M	$34.60M	$37.69M
Other Receivables	$6.549M	$6.030M	$5.390M
Total Short-Term Assets	$241.8M	$230.8M	$218.8M
YoY Change	7.26%	5.51%	17.5%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.233B	$1.223B	$1.186B
YoY Change	2.89%	3.09%	5.61%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$74.00M	$73.40M	$70.10M
YoY Change	3.64%	4.71%	6.05%
Other Assets	$10.03M	$9.723M	$6.337M
YoY Change	42.67%	53.43%	-97.05%
Total Long-Term Assets	$1.472B	$1.462B	$1.378B
YoY Change	5.56%	6.11%	-1.85%
TOTAL ASSETS
Total Short-Term Assets	$241.8M	$230.8M	$218.8M
Total Long-Term Assets	$1.472B	$1.462B	$1.378B
Total Assets	$1.714B	$1.693B	$1.597B
YoY Change	5.8%	6.03%	0.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$35.85M	$34.56M	$43.08M
YoY Change	-14.37%	-19.79%	11.6%
Accrued Expenses	$14.10M	$13.60M	$13.70M
YoY Change	-1.4%	-0.73%	9.6%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change			-100.0%
Long-Term Debt Due	$4.245M	$4.224M	$4.141M
YoY Change	1.99%	2.0%	11.92%
Total Short-Term Liabilities	$74.26M	$76.15M	$86.64M
YoY Change	-9.61%	-12.1%	-4.27%
LONG-TERM LIABILITIES
Long-Term Debt	$392.1M	$393.1M	$397.3M
YoY Change	-1.07%	-1.06%	11.46%
Other Long-Term Liabilities	$60.48M	$58.57M	$51.99M
YoY Change	14.22%	12.64%	-80.74%
Total Long-Term Liabilities	$558.1M	$552.6M	$472.6M
YoY Change	14.5%	16.92%	-24.55%
TOTAL LIABILITIES
Total Short-Term Liabilities	$74.26M	$76.15M	$86.64M
Total Long-Term Liabilities	$558.1M	$552.6M	$472.6M
Total Liabilities	$632.4M	$628.8M	$559.3M
YoY Change	11.02%	12.42%	-43.65%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$689.4M	$671.3M	$640.4M
YoY Change
Total Liabilities & Shareholders Equity	$1.714B	$1.693B	$1.597B
YoY Change	5.8%	6.03%	0.42%

Cashflow Statement

Concept	2015 Q3	2015 Q2	2014 Q2
OPERATING ACTIVITIES
Net Income	$28.35M	$13.48M	$14.09M
YoY Change	21.54%	-4.32%	1.41%
Depreciation, Depletion And Amortization	$11.20M	$11.00M	$10.10M
YoY Change	7.69%	8.91%	5.21%
Cash From Operating Activities	$49.70M	$38.40M	$26.30M
YoY Change	36.91%	46.01%	-29.68%
INVESTING ACTIVITIES
Capital Expenditures	-$19.10M	-$21.70M	-$20.50M
YoY Change	-19.75%	5.85%	-39.53%
Acquisitions
YoY Change
Other Investing Activities	-$300.0K	-$300.0K	-$900.0K
YoY Change	-62.5%	-66.67%	28.57%
Cash From Investing Activities	-$19.40M	-$21.90M	-$21.40M
YoY Change	-21.14%	2.34%	-38.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-11.80M	-11.40M	-10.50M
YoY Change	9.26%	8.57%	66.67%
NET CHANGE
Cash From Operating Activities	49.70M	38.40M	26.30M
Cash From Investing Activities	-19.40M	-21.90M	-21.40M
Cash From Financing Activities	-11.80M	-11.40M	-10.50M
Net Change In Cash	18.50M	5.100M	-5.600M
YoY Change	1955.56%	-191.07%	55.56%
FREE CASH FLOW
Cash From Operating Activities	$49.70M	$38.40M	$26.30M
Capital Expenditures	-$19.10M	-$21.70M	-$20.50M
Free Cash Flow	$68.80M	$60.10M	$46.80M
YoY Change	14.48%	28.42%	-34.36%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	7610000	USD
CY2014Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	41614000	USD
CY2014Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	17121000	USD
CY2014Q4	us-gaap	Prepaid Taxes PrepaidTaxes	38910000	USD
CY2014Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	8360000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	253959000	USD
CY2014Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	19029000	USD
CY2014Q4	us-gaap	Investments Investments	71760000	USD
CY2014Q4	us-gaap	Assets Assets	1697666000	USD
CY2014Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	4182000	USD
CY2014Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	6901000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	13931000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	89996000	USD
CY2014Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	22715000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	90201000	USD
CY2014Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	46560000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	617510000	USD
CY2014Q4	mgee	Unbilled Revenues UnbilledRevenues	31262000	USD
CY2014Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	8098000	USD
CY2014Q4	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	21036000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	10711000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1208106000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	41655000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	50269000	USD
CY2014Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	553013000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	659401000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	395256000	USD
	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2015Q2	mgee	Counterparties In Default CounterpartiesInDefault	0
CY2014Q2	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	850000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	11866000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	18921000	USD
CY2014Q2	mgee	Utilities Operating Expense Cost Of Gas Sold UtilitiesOperatingExpenseCostOfGasSold	18132000	USD
	mgee	Fair Value Inputs Delivery Points Basis Adjustment On Peak FairValueInputsDeliveryPointsBasisAdjustmentOnPeak	0.976	pure
	mgee	Fair Value Inputs Delivery Points Basis Adjustment Off Peak FairValueInputsDeliveryPointsBasisAdjustmentOffPeak	0.954	pure
CY2014Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-53986000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-64628000	USD
CY2015Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-53866000	USD
CY2014Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-58797000	USD
CY2014Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	11241000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q2	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	99481000	USD
	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	197721000	USD
	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	195549000	USD
CY2015Q2	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	20669000	USD
	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	90597000	USD
	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	141931000	USD
CY2015Q2	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1976000	USD
	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3942000	USD
	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1530000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	12677000	USD
	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	24569000	USD
	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	44130000	USD
	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	37476000	USD
CY2015Q2	mgee	Utilities Operating Expense Cost Of Gas Sold UtilitiesOperatingExpenseCostOfGasSold	6650000	USD
	mgee	Utilities Operating Expense Cost Of Gas Sold UtilitiesOperatingExpenseCostOfGasSold	53569000	USD
	mgee	Utilities Operating Expense Cost Of Gas Sold UtilitiesOperatingExpenseCostOfGasSold	96640000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	41500000	USD
	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	82174000	USD
	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	80680000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	4990000	USD
	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	10074000	USD
	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	9989000	USD
CY2015Q2	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	98077000	USD
	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	236360000	USD
	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	270598000	USD
CY2015Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.39
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.92
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.21
CY2015Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	34668000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	34668000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	34668000	shares
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-11000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-95000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-39000	USD
CY2015Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	13468000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	31662000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41765000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-7000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-64000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-26000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6201000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	85000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	1660000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4170000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	772000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-29599000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-14789000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2891000	USD
	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	11626000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-10313000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	538000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	52000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-33801000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19589000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2080000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-487000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-29156000	USD
CY2015Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	34599000	USD
CY2015Q2	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	6030000	USD
CY2015Q2	mgee	Unbilled Revenues UnbilledRevenues	23159000	USD
CY2015Q2	us-gaap	Other Inventory Supplies OtherInventorySupplies	19696000	USD
CY2015Q2	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	15446000	USD
CY2015Q2	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	12712000	USD
CY2015Q2	us-gaap	Prepaid Taxes PrepaidTaxes	24656000	USD
CY2015Q2	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	7850000	USD
CY2015Q2	us-gaap	Other Assets Current OtherAssetsCurrent	10895000	USD
CY2015Q2	us-gaap	Assets Current AssetsCurrent	230834000	USD
CY2015Q2	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	156139000	USD
CY2015Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	9723000	USD
CY2015Q2	mgee	Property Plant And Equipment Net Before Construction In Progress PropertyPlantAndEquipmentNetBeforeConstructionInProgress	1193965000	USD
CY2015Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	29204000	USD
CY2015Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1223169000	USD
CY2015Q2	us-gaap	Investments Investments	73363000	USD
CY2015Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	4224000	USD
CY2015Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	34555000	USD
CY2015Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	8733000	USD
CY2015Q2	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	7863000	USD
CY2015Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	8682000	USD
CY2015Q2	us-gaap	Liabilities Current LiabilitiesCurrent	76151000	USD
CY2015Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	343942000	USD
CY2015Q2	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1136000	USD
CY2015Q2	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	21542000	USD
CY2015Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	79324000	USD
CY2015Q2	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	48090000	USD
CY2015Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	58565000	USD
CY2015Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	552599000	USD
CY2015Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	393146000	USD
CY2015Q2	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1064478000	USD
CY2015Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1693228000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-39000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	11115000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	13634000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	-34000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	60000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	18840000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-95000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19589000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	68813000	USD
CY2014Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	87911000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	10036000	USD
	dei	Document Period End Date DocumentPeriodEndDate	2015-06-30
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
	dei	Amendment Flag AmendmentFlag	false
	dei	Entity Registrant Name EntityRegistrantName	MGE Energy Inc
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2015Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	34668370	shares
CY2015Q2	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Regulatory Liabilities Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInRegulatoryLiabilitiesAssets	-2327000	USD
	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Regulatory Liabilities Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInRegulatoryLiabilitiesAssets	-2208000	USD
	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Regulatory Liabilities Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInRegulatoryLiabilitiesAssets	15279000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2015Q2	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Current Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInCurrentAssets	0	USD
	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Current Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInCurrentAssets	0	USD
	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Current Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInCurrentAssets	-185000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	4953000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
CY2015Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	100000	USD
CY2015Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3806000	USD
CY2014Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	100000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	4071000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	8938000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	20607000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet	0	USD
CY2015Q2	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	0	USD
	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	0	USD
	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	0	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-56194000	USD
CY2015Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.373	pure
CY2014Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.391	pure
CY2015Q2	mgee	Utilities Operating Expense Excluding Depreciation And Amortization UtilitiesOperatingExpenseExcludingDepreciationAndAmortization	87082000	USD
	mgee	Utilities Operating Expense Excluding Depreciation And Amortization UtilitiesOperatingExpenseExcludingDepreciationAndAmortization	214516000	USD
	mgee	Utilities Operating Expense Excluding Depreciation And Amortization UtilitiesOperatingExpenseExcludingDepreciationAndAmortization	250783000	USD
CY2015Q2	mgee	Accruedinterestandtaxes Accruedinterestandtaxes	4905000	USD
CY2014Q4	mgee	Accruedinterestandtaxes Accruedinterestandtaxes	5086000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.565
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.543
CY2014Q2	us-gaap	Stockholders Equity StockholdersEquity	640355000	USD
CY2015Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	900000	USD
CY2014	mgee	Fair Value Inputs Delivery Points Basis Adjustment On Peak FairValueInputsDeliveryPointsBasisAdjustmentOnPeak	0.981	pure
CY2014	mgee	Fair Value Inputs Delivery Points Basis Adjustment Off Peak FairValueInputsDeliveryPointsBasisAdjustmentOffPeak	0.95	pure
CY2014Q4	mgee	Stockholders Equity Adjusted Balance StockholdersEquityAdjustedBalance	659259000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	33211000	USD
CY2015Q2	us-gaap	Assets Assets	1693228000	USD
	mgee	Stockholders Equity Value Cash In Lieu Of Fractional Shares Related To Stock Split StockholdersEquityValueCashInLieuOfFractionalSharesRelatedToStockSplit	80000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4329000	USD
CY2015Q2	us-gaap	Allowance For Doubtful Accounts Premiums And Other Receivables AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables	557000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Premiums And Other Receivables AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables	420000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-7000000	USD
CY2015Q2	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	0	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	3482000	USD
CY2015Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	7000000	USD
CY2014Q4	mgee	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-142000	USD
CY2015Q2	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	900000	USD
CY2014Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	2200000	USD
	dei	Trading Symbol TradingSymbol	MGEE
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	24049000	USD
CY2015Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	122126000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	10995000	USD
CY2014Q2	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	96697000	USD
CY2014Q2	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	31218000	USD
CY2015Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8008000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	13479000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	21487000	USD
CY2015Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-5008000	USD
CY2015Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2446000	USD
	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	21844000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	55900000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4551000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10099000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	50352000	USD
	us-gaap	Net Income Loss NetIncomeLoss	31757000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18595000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	339010000	USD
	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	19815000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	68412000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	8100000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-9409000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	67103000	USD
	us-gaap	Net Income Loss NetIncomeLoss	41804000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25299000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	40208000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	5128000	USD
CY2014Q2	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	104324000	USD
CY2014Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.41
CY2014Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.272
CY2014Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	34668000	shares
CY2014Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	128765000	USD
CY2014Q2	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	10069000	USD
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	24441000	USD
CY2014Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	3548000	USD
CY2014Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-4868000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	23121000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	14087000	USD
CY2014Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9034000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	292260000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-46000	USD
CY2014Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14041000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-31000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15110000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	984000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-555000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4883000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1077000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-17349000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-5840000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	3835000	USD
	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	1633000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	229000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	84680000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	42272000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	1225000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1123000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-44620000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18840000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2042000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-80000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-20962000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	19098000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2015Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	75791000	USD
CY2015Q2	us-gaap	Stockholders Equity StockholdersEquity	671332000	USD
CY2015Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-883000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-2211000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	7218000	USD
CY2014Q2	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Regulatory Liabilities Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInRegulatoryLiabilitiesAssets	9448000	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2014Q2	mgee	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Current Assets FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInCurrentAssets	-185000	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	6828000	USD
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2015Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.283
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.369	pure
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	7294000	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet	0	USD
CY2014Q2	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	0	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	651000	USD
CY2014Q2	mgee	Utilities Operating Expense Excluding Depreciation And Amortization UtilitiesOperatingExpenseExcludingDepreciationAndAmortization	94255000	USD
CY2015Q2	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	907000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	0	USD
CY2014Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-49349000	USD
	dei	Entity Central Index Key EntityCentralIndexKey	0001161728
	dei	Document Type DocumentType	10-Q
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2015Q2	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	6282000	USD
CY2014Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	0	USD
CY2014Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	156823000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7018000	USD
CY2014Q4	mgee	Property Plant And Equipment Net Before Construction In Progress PropertyPlantAndEquipmentNetBeforeConstructionInProgress	1189077000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	342045000	USD
CY2014Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1223000	USD
CY2014Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1054657000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1697666000	USD
	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	25998000	USD
CY2015Q2	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	21265000	USD
	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:45pt;' >As part of its regular operations, MGE enters into contracts, including options, swaps, futures, forwards, and other contractual commitments, to manage its exposure to commodity </font><font style='font-family:Times New Roman;font-size:10pt;' >prices</font><font style='font-family:Times New Roman;font-size:10pt;' >. To the extent that these contracts are derivatives, MGE assesses whether or not the normal purchases or normal sales exclusion applies. For contracts to which this exclusion cannot be applied, MGE Energy and MGE recognize such deri</font><font style='font-family:Times New Roman;font-size:10pt;' >vatives in the consolidated balance sheets at fair value. MGE's </font><font style='font-family:Times New Roman;font-size:10pt;' >commodity </font><font style='font-family:Times New Roman;font-size:10pt;' >derivative activities are conducted in accordance with its electric and gas risk management program, which is approved by the PSCW and limits the volume MGE can hedge with specific r</font><font style='font-family:Times New Roman;font-size:10pt;' >isk management strategies. The maximum length of time over which cash flows related to energy commodities can be hedg</font><font style='font-family:Times New Roman;font-size:10pt;' >ed is four years. If the derivative qualifies for regulatory deferral, the derivatives are marked to fair value and are offset with a corre</font><font style='font-family:Times New Roman;font-size:10pt;' >sponding regulatory asset or liability. The deferred gain or loss is recognized in earnings in the delivery month applicable to the instrument. Gains and losses related to hedges qualifying for regulatory treatment are recoverable in gas rates through the </font><font style='font-family:Times New Roman;font-size:10pt;' >PGA or in electric rates as a component of the fuel rules mechanism. </font></p></div>

Files In Submission

Name	View Source	Status
0001161728-15-000014-index-headers.html	Edgar Link	pending
0001161728-15-000014-index.html	Edgar Link	pending
0001161728-15-000014.txt	Edgar Link	pending
0001161728-15-000014-xbrl.zip	Edgar Link	pending
ex12.htm	Edgar Link	pending
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f10q_20150630.htm	Edgar Link	pending
f10q_20150630.pdf	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
mgee-20150630.xml	Edgar Link	completed
mgee-20150630.xsd	Edgar Link	pending
mgee-20150630_cal.xml	Edgar Link	unprocessable
mgee-20150630_def.xml	Edgar Link	unprocessable
mgee-20150630_lab.xml	Edgar Link	unprocessable
mgee-20150630_pre.xml	Edgar Link	unprocessable
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$MGEE
MGE ENERGY INC Stock $mgee

2015 Q3 Form 10-Q Financial Statement

#000116172815000014 Filed on August 06, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MGEE MGE ENERGY INC Stock $mgee

2015 Q3 Form 10-Q Financial Statement

#000116172815000014 Filed on August 06, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MGEE
MGE ENERGY INC Stock $mgee