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Share-Based Compensation | 9 Months Ended
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Sep. 30, 2021
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-Based Compensation | Share-Based C ompensation - MGE Energy and MGE. During the three and nine months ended September 30, 2021, MGE recorded $0.3 million and $1.6 million, respectively, in compensation expense related to share-based compensation awards under the 2006 Performance Unit Plan, the 2020 Performance Unit Plan, the 2013 Director Incentive Plan, and the 2021 Long-Term Incentive Plan (2021 Plan) compared to $0.2 million and $0.3 million for the comparable periods in 2020. In January 2021, cash payments of $1.9 million were distributed related to awards that were granted in 2018, for the 2013 Director Incentive Plan, and in 2016, for the 2006 Performance Unit Plan. In February 2021, MGE issued 10,187 performance units and 16,267 restricted stock units under the 2021 Plan to eligible employees and non-employee directors. MGE recognizes stock-based compensation expense on a straight-line basis over the requisite service period. Awards classified as equity awards are measured based on their grant-date fair value. Awards classified as liability awards are recorded at fair value each reporting period. The performance units can be paid out in either cash, shares of common stock or a combination of cash and stock and are classified as a liability award. The restricted stock units will be paid out in shares of common stock, and therefore are classified as equity awards.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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