2018 Q3 Form 10-Q Financial Statement
#000116172818000028 Filed on August 07, 2018
Income Statement
Concept | 2018 Q3 | 2018 Q2 | 2017 Q2 |
---|---|---|---|
Revenue | $137.8M | $124.3M | $126.5M |
YoY Change | -1.25% | -1.74% | 4.02% |
Cost Of Revenue | $17.90M | $22.50M | $26.00M |
YoY Change | -15.17% | -13.46% | 22.07% |
Gross Profit | $119.9M | $101.8M | $100.5M |
YoY Change | 1.27% | 1.29% | 0.2% |
Gross Profit Margin | 87.01% | 81.92% | 79.47% |
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $14.30M | $13.90M | $13.20M |
YoY Change | 6.72% | 5.3% | 18.92% |
% of Gross Profit | 11.93% | 13.65% | 13.13% |
Operating Expenses | $80.10M | $77.50M | $74.90M |
YoY Change | 4.84% | 3.47% | 3.88% |
Operating Profit | $39.80M | $24.23M | $25.60M |
YoY Change | -5.24% | -5.33% | -9.28% |
Interest Expense | -$5.000M | -$4.800M | -$4.900M |
YoY Change | 6.38% | -2.04% | -2.0% |
% of Operating Profit | -12.56% | -19.81% | -19.14% |
Other Income/Expense, Net | $4.330M | $4.731M | $3.570M |
YoY Change | -12.4% | 32.52% | 63.84% |
Pretax Income | $39.10M | $24.18M | $24.28M |
YoY Change | -7.37% | -0.41% | -4.54% |
Income Tax | $9.597M | $5.828M | $8.736M |
% Of Pretax Income | 24.54% | 24.1% | 35.98% |
Net Earnings | $29.51M | $18.35M | $15.54M |
YoY Change | 10.8% | 18.07% | -3.76% |
Net Earnings / Revenue | 21.41% | 14.77% | 12.29% |
Basic Earnings Per Share | |||
Diluted Earnings Per Share | $850.1K | $530.3K | $446.7K |
COMMON SHARES | |||
Basic Shares Outstanding | 34.67M shares | 34.67M shares | |
Diluted Shares Outstanding |
Balance Sheet
Concept | 2018 Q3 | 2018 Q2 | 2017 Q2 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $133.9M | $95.60M | $102.9M |
YoY Change | 27.89% | -7.09% | -6.71% |
Cash & Equivalents | $133.9M | $95.58M | $102.9M |
Short-Term Investments | |||
Other Short-Term Assets | $52.10M | $12.71M | $11.32M |
YoY Change | -10.63% | 12.31% | -15.53% |
Inventory | $45.40M | $41.80M | $41.10M |
Prepaid Expenses | |||
Receivables | $41.69M | $35.47M | $35.25M |
Other Receivables | $7.565M | $7.808M | $7.024M |
Total Short-Term Assets | $280.7M | $242.3M | $249.3M |
YoY Change | 9.91% | -2.8% | -2.21% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $1.459B | $1.420B | $1.299B |
YoY Change | 11.21% | 9.32% | 2.56% |
Goodwill | |||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | $73.40M | $72.10M | $84.90M |
YoY Change | -15.14% | -15.08% | 12.75% |
Other Assets | $8.729M | $5.379M | $6.228M |
YoY Change | -94.4% | -13.63% | -2.26% |
Total Long-Term Assets | $1.694B | $1.651B | $1.543B |
YoY Change | 8.94% | 6.99% | 3.18% |
TOTAL ASSETS | |||
Total Short-Term Assets | $280.7M | $242.3M | $249.3M |
Total Long-Term Assets | $1.694B | $1.651B | $1.543B |
Total Assets | $1.974B | $1.893B | $1.793B |
YoY Change | 9.08% | 5.63% | 2.39% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $50.34M | $37.50M | $34.05M |
YoY Change | 59.81% | 10.14% | -26.47% |
Accrued Expenses | $16.40M | $15.80M | $15.30M |
YoY Change | 11.56% | 3.27% | 6.25% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $0.00 | $28.20M | $0.00 |
YoY Change | -100.0% | ||
Long-Term Debt Due | $4.527M | $4.502M | $4.404M |
YoY Change | 2.89% | 2.23% | -87.16% |
Total Short-Term Liabilities | $98.49M | $118.4M | $83.60M |
YoY Change | 16.44% | 41.63% | -34.97% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $494.4M | $416.1M | $390.4M |
YoY Change | 26.96% | 6.58% | 10.03% |
Other Long-Term Liabilities | $72.06M | $338.4M | $195.5M |
YoY Change | 12.7% | 73.09% | 206.11% |
Total Long-Term Liabilities | $569.4M | $754.5M | $585.9M |
YoY Change | -2.29% | 28.78% | 3.85% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $98.49M | $118.4M | $83.60M |
Total Long-Term Liabilities | $569.4M | $754.5M | $585.9M |
Total Liabilities | $667.9M | $1.099B | $1.055B |
YoY Change | 0.09% | 4.22% | 52.26% |
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 | $812.0M | $794.2M | $737.7M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $1.974B | $1.893B | $1.793B |
YoY Change | 9.08% | 5.63% | 2.39% |
Cashflow Statement
Concept | 2018 Q3 | 2018 Q2 | 2017 Q2 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $29.51M | $18.35M | $15.54M |
YoY Change | 10.8% | 18.07% | -3.76% |
Depreciation, Depletion And Amortization | $14.30M | $13.90M | $13.20M |
YoY Change | 6.72% | 5.3% | 18.92% |
Cash From Operating Activities | $46.80M | $44.60M | $25.70M |
YoY Change | 60.82% | 73.54% | -48.39% |
INVESTING ACTIVITIES | |||
Capital Expenditures | -$48.60M | -$62.80M | -$26.10M |
YoY Change | 101.66% | 140.61% | 3.57% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | -$1.700M | -$800.0K | -$2.700M |
YoY Change | -525.0% | -70.37% | 800.0% |
Cash From Investing Activities | -$50.30M | -$63.60M | -$28.80M |
YoY Change | 112.24% | 120.83% | 12.94% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | 38.30M | 12.90M | -11.80M |
YoY Change | -822.64% | -209.32% | 4.42% |
NET CHANGE | |||
Cash From Operating Activities | 46.80M | 44.60M | 25.70M |
Cash From Investing Activities | -50.30M | -63.60M | -28.80M |
Cash From Financing Activities | 38.30M | 12.90M | -11.80M |
Net Change In Cash | 34.80M | -6.100M | -14.90M |
YoY Change | 34700.0% | -59.06% | -214.62% |
FREE CASH FLOW | |||
Cash From Operating Activities | $46.80M | $44.60M | $25.70M |
Capital Expenditures | -$48.60M | -$62.80M | -$26.10M |
Free Cash Flow | $95.40M | $107.4M | $51.80M |
YoY Change | 79.32% | 107.34% | -30.93% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
129000 | USD | |
CY2017Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
42299000 | USD |
CY2017Q4 | us-gaap |
Other Receivables Net Current
OtherReceivablesNetCurrent
|
9440000 | USD |
CY2017Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
22614000 | USD |
CY2017Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
8256000 | USD |
CY2017Q4 | us-gaap |
Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
|
12923000 | USD |
CY2017Q4 | us-gaap |
Prepaid Taxes
PrepaidTaxes
|
26535000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
7888000 | USD |
CY2017Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
12507000 | USD |
CY2017Q4 | us-gaap |
Assets Current
AssetsCurrent
|
290631000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
142567000 | USD |
CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
731000 | USD |
CY2017Q4 | mgee |
Property Plant And Equipment Net Before Construction In Progress
PropertyPlantAndEquipmentNetBeforeConstructionInProgress
|
1283313000 | USD |
CY2017Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
58044000 | USD |
CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
1341357000 | USD |
CY2017Q4 | us-gaap |
Investments
Investments
|
67772000 | USD |
CY2017Q4 | us-gaap |
Assets
Assets
|
1855182000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
24452000 | USD |
CY2017Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
47645000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
8180000 | USD |
CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
18758000 | USD |
CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
126514000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
225130000 | USD |
CY2017Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
918000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
154153000 | USD |
CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
69088000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
33990000 | USD |
us-gaap |
Stock Issued During Period Shares New Issues
StockIssuedDuringPeriodSharesNewIssues
|
0 | shares | |
CY2017Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
69041000 | USD |
CY2017Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
552320000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
398161000 | USD |
CY2017Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
1176348000 | USD |
CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
1855182000 | USD |
us-gaap |
Stock Issued During Period Shares New Issues
StockIssuedDuringPeriodSharesNewIssues
|
0 | shares | |
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 </font><font style='font-family:Times New Roman;font-size:10pt;' >part </font><font style='font-family:Times New Roman;font-size:10pt;' >of its regular operations, MGE enters into contracts, including options, swaps, futures, forwards, and other contractual commitments, to manage its exposure to commodity prices. To the extent that these contracts are derivatives, MGE assesses whether or no</font><font style='font-family:Times New Roman;font-size:10pt;' >t the normal purchases or normal sales exclusion applies. For contracts to which this exclusion cannot be applied, the derivatives are recognized in the consolidated balance sheets at fair value. MGE's financial commodity derivative activities are conducte</font><font style='font-family:Times New Roman;font-size:10pt;' >d 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 risk management strategies. The maximum length of time over which cash flows related to energy commodities ca</font><font style='font-family:Times New Roman;font-size:10pt;' >n be hedged is four years. If the derivative qualifies for regulatory deferral, the derivatives are marked to fair value and are offset with a corresponding regulatory asset or liability depending on whether the derivative is in a net</font><font style='font-family:Times New Roman;font-size:10pt;' > loss or net gain posi</font><font style='font-family:Times New Roman;font-size:10pt;' >tion, respectively. 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 PGA or in electric r</font><font style='font-family:Times New Roman;font-size:10pt;' >ates as a component of the fuel rules mechanism</font><font style='font-family:Times New Roman;font-size:10pt;' >. </font></p></div> | ||
mgee |
Fair Value Inputs Delivery Points Basis Adjustment On Peak
FairValueInputsDeliveryPointsBasisAdjustmentOnPeak
|
0.911 | pure | |
mgee |
Fair Value Inputs Delivery Points Basis Adjustment Off Peak
FairValueInputsDeliveryPointsBasisAdjustmentOffPeak
|
0.931 | pure | |
us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
86000 | USD | |
CY2016Q4 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
|
-50305000 | USD |
mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Regulatory Liabilities Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInRegulatoryLiabilitiesAssets
|
4701000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss
|
0 | USD | |
mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Current Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInCurrentAssets
|
-97000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases
|
12182000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Sales
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSales
|
0 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Issues
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues
|
0 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
|
10950000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Net
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet
|
0 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
0 | USD | |
mgee |
Utilities Operating Expense Excluding Depreciation And Amortization
UtilitiesOperatingExpenseExcludingDepreciationAndAmortization
|
199621000 | USD | |
CY2017Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
12244000 | USD |
CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
82507000 | USD | |
us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
24109000 | USD | |
us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
32074000 | USD | |
mgee |
Utilities Operating Expense Cost Of Gas Sold
UtilitiesOperatingExpenseCostOfGasSold
|
45015000 | USD | |
us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
88644000 | USD | |
us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
9779000 | USD | |
us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
225855000 | USD | |
us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.01 | ||
us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.615 | ||
us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
34668000 | shares | |
us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
87745000 | USD | |
us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
27151000 | USD | |
us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
30012000 | USD | |
mgee |
Utilities Operating Expense Cost Of Gas Sold
UtilitiesOperatingExpenseCostOfGasSold
|
49188000 | USD | |
us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
87846000 | USD | |
us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
9783000 | USD | |
us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
231475000 | USD | |
us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.11 | ||
us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
34668000 | shares | |
us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
0 | USD | |
us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
38352000 | USD | |
us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD | |
us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-664000 | USD | |
us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
354000 | USD | |
us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
-1076000 | USD | |
us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-160000 | USD | |
us-gaap |
Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
|
-1333000 | USD | |
us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
2640000 | USD | |
us-gaap |
Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
|
-2386000 | USD | |
CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
724088000 | USD |
us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
91618000 | USD | |
us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-598000 | USD | |
us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-103071000 | USD | |
us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
22361000 | USD | |
us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2213000 | USD | |
us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-374000 | USD | |
CY2018Q2 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2018Q2 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
35473000 | USD |
CY2018Q2 | us-gaap |
Other Receivables Net Current
OtherReceivablesNetCurrent
|
7808000 | USD |
CY2018Q2 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
24595000 | USD |
CY2018Q2 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
9451000 | USD |
CY2018Q2 | us-gaap |
Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
|
7763000 | USD |
CY2018Q2 | us-gaap |
Prepaid Taxes
PrepaidTaxes
|
16042000 | USD |
CY2018Q2 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
7462000 | USD |
CY2018Q2 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
12714000 | USD |
CY2018Q2 | us-gaap |
Assets Current
AssetsCurrent
|
242310000 | USD |
CY2018Q2 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
137267000 | USD |
CY2018Q2 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
5379000 | USD |
CY2018Q2 | mgee |
Property Plant And Equipment Net Before Construction In Progress
PropertyPlantAndEquipmentNetBeforeConstructionInProgress
|
1345255000 | USD |
CY2018Q2 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
75007000 | USD |
CY2018Q2 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
1420262000 | USD |
CY2018Q2 | us-gaap |
Investments
Investments
|
72083000 | USD |
CY2018Q2 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
4502000 | USD |
CY2018Q2 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
37498000 | USD |
CY2018Q2 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
10449000 | USD |
dei |
Document Period End Date
DocumentPeriodEndDate
|
2018-06-30 | ||
dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2018 | ||
dei |
Amendment Flag
AmendmentFlag
|
false | ||
dei |
Entity Registrant Name
EntityRegistrantName
|
MGE Energy Inc | ||
dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | ||
CY2018Q3 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
34668370 | shares |
mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Regulatory Liabilities Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInRegulatoryLiabilitiesAssets
|
4693000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss
|
0 | USD | |
mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Current Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInCurrentAssets
|
-470000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases
|
11866000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Sales
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSales
|
0 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Issues
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues
|
0 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
|
10935000 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Net
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet
|
0 | USD | |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
0 | USD | |
CY2018Q1 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
|
-41463000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
|
5413000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Net
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet
|
0 | USD |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
|
-1136000 | USD | |
CY2017Q2 | mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Current Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInCurrentAssets
|
-222000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases
|
6186000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Sales
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSales
|
0 | USD |
us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-778000 | USD | |
us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
-20595000 | USD | |
us-gaap |
Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
|
-11516000 | USD | |
mgee |
Utilities Operating Expense Excluding Depreciation And Amortization
UtilitiesOperatingExpenseExcludingDepreciationAndAmortization
|
203980000 | USD | |
CY2018Q2 | mgee |
Accruedinterestandtaxes
Accruedinterestandtaxes
|
5350000 | USD |
CY2017Q4 | mgee |
Accruedinterestandtaxes
Accruedinterestandtaxes
|
5602000 | USD |
us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.645 | ||
CY2017 | mgee |
Fair Value Inputs Delivery Points Basis Adjustment On Peak
FairValueInputsDeliveryPointsBasisAdjustmentOnPeak
|
0.923 | pure |
CY2017 | mgee |
Fair Value Inputs Delivery Points Basis Adjustment Off Peak
FairValueInputsDeliveryPointsBasisAdjustmentOffPeak
|
0.941 | pure |
us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
100389000 | USD | |
CY2018Q2 | us-gaap |
Assets
Assets
|
1893445000 | USD |
CY2017Q4 | us-gaap |
Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
|
100000 | USD |
CY2018Q2 | us-gaap |
Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
|
0 | USD |
CY2018Q2 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
2434000 | USD |
CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
2840000 | USD |
CY2018Q2 | us-gaap |
Allowance For Doubtful Accounts Premiums And Other Receivables
AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables
|
588000 | USD |
CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Premiums And Other Receivables
AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables
|
335000 | USD |
dei |
Trading Symbol
TradingSymbol
|
MGEE | ||
us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
1037000 | USD | |
us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
367000 | USD | |
us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
727000 | 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 | ||
dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | ||
dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | ||
dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | ||
CY2018Q2 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
9110000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
5633000 | USD |
us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
200779000 | USD | |
us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
194149000 | USD | |
CY2017Q2 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
24081000 | USD |
CY2018Q2 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
24031000 | USD |
CY2017Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
31400000 | USD |
us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
0 | USD | |
us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
6467000 | USD | |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
778187000 | USD |
CY2017Q4 | us-gaap |
Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
|
7336000 | USD |
CY2018Q2 | us-gaap |
Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
|
11956000 | USD |
us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD | |
CY2017Q4 | us-gaap |
Assets Held For Sale Not Part Of Disposal Group Current
AssetsHeldForSaleNotPartOfDisposalGroupCurrent
|
8817000 | USD |
CY2018Q2 | us-gaap |
Assets Held For Sale Not Part Of Disposal Group Current
AssetsHeldForSaleNotPartOfDisposalGroupCurrent
|
1392000 | USD |
CY2017Q2 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
2486000 | USD |
CY2017Q2 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
2000000 | USD |
CY2017Q2 | us-gaap |
Payments To Acquire Interest In Subsidiaries And Affiliates
PaymentsToAcquireInterestInSubsidiariesAndAffiliates
|
888000 | USD |
CY2018Q2 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
2959000 | USD |
CY2018Q2 | us-gaap |
Payments To Acquire Interest In Subsidiaries And Affiliates
PaymentsToAcquireInterestInSubsidiariesAndAffiliates
|
1065000 | USD |
CY2018Q2 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
28200000 | USD |
CY2017Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
4000000 | USD |
CY2017Q4 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
|
-42026000 | USD |
CY2017Q1 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
|
-48354000 | USD |
CY2017Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
4788000 | USD |
CY2018Q2 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
4188000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1
|
778187000 | USD |
CY2017Q4 | us-gaap |
Derivative Liability Collateral Right To Reclaim Cash Offset
DerivativeLiabilityCollateralRightToReclaimCashOffset
|
100000 | USD |
CY2018Q2 | us-gaap |
Derivative Liability Collateral Right To Reclaim Cash Offset
DerivativeLiabilityCollateralRightToReclaimCashOffset
|
0 | USD |
CY2018Q2 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
95579000 | USD |
CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
107952000 | USD |
us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-11827000 | USD | |
CY2017Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
1635000 | USD |
us-gaap |
Dilutive Securities
DilutiveSecurities
|
0 | USD | |
CY2017Q4 | us-gaap |
Cumulative Effect Of New Accounting Principle In Period Of Adoption
CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
|
0 | USD |
CY2016Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
101633000 | USD |
CY2017Q2 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
107970000 | USD |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
112094000 | USD |
CY2017Q4 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
2507000 | USD |
CY2018Q2 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
24980000 | USD |
CY2018Q2 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
15251000 | USD |
CY2018Q2 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
12979000 | USD |
CY2018Q2 | mgee |
Utilities Operating Expense Cost Of Gas Sold
UtilitiesOperatingExpenseCostOfGasSold
|
9562000 | USD |
CY2018Q2 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
43453000 | USD |
CY2018Q2 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
4914000 | USD |
CY2018Q2 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
100031000 | USD |
CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
18351000 | USD |
CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
24179000 | USD |
CY2018Q2 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-4783000 | USD |
CY2018Q2 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
4731000 | USD |
CY2018Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
24231000 | USD |
CY2018Q2 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
124262000 | USD |
CY2018Q2 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
13872000 | USD |
CY2018Q2 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
99282000 | USD |
CY2017Q2 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
126463000 | USD |
CY2017Q2 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
11910000 | USD |
CY2017Q2 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
16720000 | USD |
CY2017Q2 | mgee |
Utilities Operating Expense Cost Of Gas Sold
UtilitiesOperatingExpenseCostOfGasSold
|
9231000 | USD |
CY2017Q2 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
44880000 | USD |
CY2017Q2 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
13275000 | USD |
us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
54746000 | USD | |
us-gaap |
Net Income Loss
NetIncomeLoss
|
34843000 | USD | |
us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
19903000 | USD | |
CY2018Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.53 | |
CY2017Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.45 | |
CY2017Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.308 | |
CY2017Q2 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
34668000 | shares |
CY2018Q2 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
34668000 | shares |
CY2017Q2 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
4852000 | USD |
CY2017Q2 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
100868000 | USD |
CY2017Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
25595000 | USD |
CY2017Q2 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
3570000 | USD |
CY2017Q2 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-4886000 | USD |
CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
24279000 | USD |
CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
15543000 | USD |
CY2017Q2 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
102382000 | USD |
CY2017Q2 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
8736000 | USD |
us-gaap |
Net Income Loss
NetIncomeLoss
|
38352000 | USD | |
us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
50547000 | USD | |
us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-9522000 | USD | |
us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
9650000 | USD | |
us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
50419000 | USD | |
us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
281894000 | USD | |
us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
27495000 | USD | |
us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
12195000 | USD | |
us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
26234000 | USD | |
us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
57431000 | USD | |
us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
7095000 | USD | |
us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
-9780000 | USD | |
CY2018Q2 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
0 | USD |
CY2018Q2 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
18351000 | USD |
CY2017Q2 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
32000 | USD |
CY2017Q2 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
15575000 | USD |
CY2018Q2 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD |
CY2017Q2 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
21000 | USD |
us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
4441000 | USD | |
us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
3905000 | USD | |
us-gaap |
Payments To Acquire Interest In Subsidiaries And Affiliates
PaymentsToAcquireInterestInSubsidiariesAndAffiliates
|
3280000 | USD | |
us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
8284000 | USD | |
us-gaap |
Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
|
-3257000 | USD | |
us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
67016000 | USD | |
us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
42169000 | USD | |
us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-852000 | USD | |
us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-46874000 | USD | |
us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
21321000 | USD | |
us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
32167000 | USD | |
us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-13805000 | USD | |
us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-317000 | USD | |
us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
8450000 | USD | |
us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
40000000 | USD | |
us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
5094000 | USD | |
us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
4072000 | USD | |
us-gaap |
Payments To Acquire Interest In Subsidiaries And Affiliates
PaymentsToAcquireInterestInSubsidiariesAndAffiliates
|
5557000 | USD | |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss
|
0 | USD |
us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
0 | USD | |
us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
6337000 | USD | |
CY2018Q2 | mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Regulatory Liabilities Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInRegulatoryLiabilitiesAssets
|
4130000 | USD |
CY2018Q2 | mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Current Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInCurrentAssets
|
-297000 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Sales
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSales
|
0 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Issues
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues
|
0 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases
|
6032000 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
|
5816000 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Net
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet
|
0 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
|
82000 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
|
-37332000 | USD |
CY2018Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
0 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
|
-550000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
|
-45605000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
0 | USD |
us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
|
-460000 | USD | |
CY2018Q2 | mgee |
Utilities Operating Expense Excluding Depreciation And Amortization
UtilitiesOperatingExpenseExcludingDepreciationAndAmortization
|
86159000 | USD |
CY2017Q2 | mgee |
Utilities Operating Expense Excluding Depreciation And Amortization
UtilitiesOperatingExpenseExcludingDepreciationAndAmortization
|
87593000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss
|
0 | USD |
us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
-29120000 | USD | |
CY2018Q2 | us-gaap |
Stockholders Equity
StockholdersEquity
|
794178000 | USD |
mgee |
Jointlyownedutilityplantintereststextblock
Jointlyownedutilityplantintereststextblock
|
<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;font-weight:bold;margin-left:0pt;' >Joint Plant Ownership</font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;' > - MGE Energy and MGE.</font></p><p style='text-align:left;line-height:12pt;' ></p><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:45pt;' >a.</font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;' > </font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;' >Columbia.</font></p><p style='text-align:left;line-height:12pt;' ></p><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:45.35pt;' >In 2016, MGE and WPL negotiated an amendment to the existing Columbia joint operating agreement, that has been approved by the PSCW, under which MGE will have the option to reduce its </font><font style='font-family:Times New Roman;font-size:10pt;' >obligation to pay certain capital expenditures (other than SCR-related expenditures) at Columbia in exchange for a proportional reduction in MGE's ownership in Columbia. On January 1 of each year, </font><font style='font-family:Times New Roman;font-size:10pt;' >that began </font><font style='font-family:Times New Roman;font-size:10pt;' >in 2017 and </font><font style='font-family:Times New Roman;font-size:10pt;' >will end</font><font style='font-family:Times New Roman;font-size:10pt;' > June 1, 2020, the ownership pe</font><font style='font-family:Times New Roman;font-size:10pt;' >rcentage </font><font style='font-family:Times New Roman;font-size:10pt;' >is</font><font style='font-family:Times New Roman;font-size:10pt;' > adjusted, through a partial sale, based on the amount of capital expenditures foregone. In </font><font style='font-family:Times New Roman;font-size:10pt;' >June 2017, the FERC approved the ownership transfer in Columbia</font><font style='font-family:Times New Roman;font-size:10pt;' >, effective January 1, 2017. </font></p><p style='text-align:left;line-height:12pt;' ></p><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:45.35pt;' >During 201</font><font style='font-family:Times New Roman;font-size:10pt;' >7</font><font style='font-family:Times New Roman;font-size:10pt;' >, MGE accrued $</font><font style='font-family:Times New Roman;font-size:10pt;' >8.8</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >million of 201</font><font style='font-family:Times New Roman;font-size:10pt;' >7</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >foregone </font><font style='font-family:Times New Roman;font-size:10pt;' >capital expenditures </font><font style='font-family:Times New Roman;font-size:10pt;' >as part of the ownership transfer agreement </font><font style='font-family:Times New Roman;font-size:10pt;' >with WPL. As of December 31, 2017</font><font style='font-family:Times New Roman;font-size:10pt;' >, MGE classified $</font><font style='font-family:Times New Roman;font-size:10pt;' >8.8</font><font style='font-family:Times New Roman;font-size:10pt;' > million of Columbia assets as held-for-sale on the consolidated balance </font><font style='font-family:Times New Roman;font-size:10pt;' >sheets. In January 201</font><font style='font-family:Times New Roman;font-size:10pt;' >8</font><font style='font-family:Times New Roman;font-size:10pt;' >, MGE reduced its ownership interest in Columbia from </font><font style='font-family:Times New Roman;font-size:10pt;' >20.4</font><font style='font-family:Times New Roman;font-size:10pt;' >% to </font><font style='font-family:Times New Roman;font-size:10pt;' >19.4</font><font style='font-family:Times New Roman;font-size:10pt;' >% </font><font style='font-family:Times New Roman;font-size:10pt;' >as a result of</font><font style='font-family:Times New Roman;font-size:10pt;' > the partial sale of plant assets to WPL.</font></p><p style='text-align:left;line-height:12pt;' ></p><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:45.35pt;' >During </font><font style='font-family:Times New Roman;font-size:10pt;' >the </font><font style='font-family:Times New Roman;font-size:10pt;' >three and six months ended</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >June 30,</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >2018</font><font style='font-family:Times New Roman;font-size:10pt;' >, MGE accr</font><font style='font-family:Times New Roman;font-size:10pt;' >ued </font><font style='font-family:Times New Roman;font-size:10pt;' >less than $0.1 </font><font style='font-family:Times New Roman;font-size:10pt;' >million</font><font style='font-family:Times New Roman;font-size:10pt;' > and </font><font style='font-family:Times New Roman;font-size:10pt;' >$</font><font style='font-family:Times New Roman;font-size:10pt;' >1.4</font><font style='font-family:Times New Roman;font-size:10pt;' > million, respectively,</font><font style='font-family:Times New Roman;font-size:10pt;' > of 201</font><font style='font-family:Times New Roman;font-size:10pt;' >8</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >foregone </font><font style='font-family:Times New Roman;font-size:10pt;' >capital expenditures </font><font style='font-family:Times New Roman;font-size:10pt;' >as part of</font><font style='font-family:Times New Roman;font-size:10pt;' > t</font><font style='font-family:Times New Roman;font-size:10pt;' >he ownership transfer agreement</font><font style='font-family:Times New Roman;font-size:10pt;' >. As of </font><font style='font-family:Times New Roman;font-size:10pt;' >June 30,</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >2018</font><font style='font-family:Times New Roman;font-size:10pt;' >, MGE classified $</font><font style='font-family:Times New Roman;font-size:10pt;' >1.4</font><font style='font-family:Times New Roman;font-size:10pt;' > million </font><font style='font-family:Times New Roman;font-size:10pt;' >of Columbia assets as held-for-sale on the consolidated balance sheets.</font><font style='font-family:Times New Roman;font-size:10pt;' > The assets recognized as held-for-sale are the ownership transfer agreement covering the</font><font style='font-family:Times New Roman;font-size:10pt;' > sale of plant assets to WPL, expected to occur in January 2019.</font></p></div><p style='line-height:20pt;' /><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;font-weight:bold;margin-left:45pt;' >b. Forward Wind.</font></p><p style='text-align:left;line-height:12pt;' ></p><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:45.35pt;' >In April 2018, MGE, along with two other utilities, purchased the Forward Wind Energy Center</font><font style='font-family:Times New Roman;font-size:10pt;' > (Forward Wind)</font><font style='font-family:Times New Roman;font-size:10pt;' >, which consists of 86 wind turbines located in Wisconsin with a total capacity of 129 MWs. The aggregate purchase price was approximately $174 million of which MGE's proportionate share is 12.8%, or approximately $23 million. T</font><font style='font-family:Times New Roman;font-size:10pt;' >he purchase of Forward Wind </font><font style='font-family:Times New Roman;font-size:10pt;' >replaced an existing purchase power agreement, </font><font style='font-family:Times New Roman;font-size:10pt;' >under </font><font style='font-family:Times New Roman;font-size:10pt;' >which MGE purchased 12.8% of the facility's energy output.</font></p><p style='text-align:left;line-height:12pt;' ></p><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:45.35pt;' >MGE Energy and MGE are required to record a liability for the fair value of an </font><font style='font-family:Times New Roman;font-size:10pt;' >asset retirement obligation (</font><font style='font-family:Times New Roman;font-size:10pt;' >ARO</font><font style='font-family:Times New Roman;font-size:10pt;' >)</font><font style='font-family:Times New Roman;font-size:10pt;' > to be recognized in the period </font><font style='font-family:Times New Roman;font-size:10pt;' >in which it is incurred if it can be reasonably estimated. The offsetting associated asset retirement costs are capitalized as a long-lived asset and depreciated over the asset's useful life. As of </font><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >June 30,</font><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' > </font><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >2018</font><font style='font-family:Times New Roman;font-size:10pt;' >, MGE recorded an obligation of $</font><font style='font-family:Times New Roman;font-size:10pt;' >1.6</font><font style='font-family:Times New Roman;font-size:10pt;' > mill</font><font style='font-family:Times New Roman;font-size:10pt;' >ion for the fair value of its legal liability for AROs associated with </font><font style='font-family:Times New Roman;font-size:10pt;' >Forward Wind</font><font style='font-family:Times New Roman;font-size:10pt;' >. MGE has regulatory treatment and recognizes regulatory assets or liabilities for the timing differences between when we recover legal AROs in rates and when those costs wo</font><font style='font-family:Times New Roman;font-size:10pt;' >uld actually be recognized.</font></p></div> | ||
CY2018Q2 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
100267000 | USD |
CY2018Q2 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
3516000 | USD |
CY2018Q2 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
1172000 | USD |
us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
21321000 | USD | |
CY2018Q2 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
1990000 | USD |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.052 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.003 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
0.015 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0.019 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
|
0.003 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
0.002 | pure |
CY2017Q2 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.36 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.063 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.001 | pure |
CY2018Q1 | mgee |
Forward Wind Purchase Power Energy Output
ForwardWindPurchasePowerEnergyOutput
|
0.128 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
0.004 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
|
0.011 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0.019 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
-0.003 | pure |
CY2018Q2 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.241 | pure |
us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.052 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.063 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.003 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
0.014 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0.017 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
|
0.003 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
0.001 | pure | |
us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.364 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.001 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
0.003 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
0 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
|
0.009 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0.019 | pure | |
us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
0 | pure | |
us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.241 | pure | |
CY2018Q2 | us-gaap |
Purchase Obligation Future Minimum Payments Remainder Of Fiscal Year
PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear
|
27735000 | USD |
CY2018Q2 | us-gaap |
Purchase Obligation Due In Second Year
PurchaseObligationDueInSecondYear
|
31778000 | USD |
CY2018Q2 | us-gaap |
Purchase Obligation Due In Third Year
PurchaseObligationDueInThirdYear
|
8065000 | USD |
CY2018Q2 | us-gaap |
Purchase Obligation Due In Fourth Year
PurchaseObligationDueInFourthYear
|
2277000 | USD |
CY2018Q2 | us-gaap |
Purchase Obligation Due In Fifth Year
PurchaseObligationDueInFifthYear
|
2286000 | USD |
CY2018Q2 | us-gaap |
Purchase Obligation Due After Fifth Year
PurchaseObligationDueAfterFifthYear
|
4931000 | USD |
CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
108131000 | USD |
CY2017Q2 | us-gaap |
Stockholders Equity
StockholdersEquity
|
737739000 | USD |
CY2017Q4 | mgee |
Forward Wind Purchase Power Energy Output
ForwardWindPurchasePowerEnergyOutput
|
0.128 | pure |
us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
24200000 | USD | |
us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
283286000 | USD | |
us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
34972000 | USD | |
CY2018Q2 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
5828000 | USD |
CY2017Q2 | mgee |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Regulatory Liabilities Assets
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInRegulatoryLiabilitiesAssets
|
2748000 | USD |
CY2017Q2 | us-gaap |
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Issues
FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues
|
0 | USD |