Share-Based Compensation	6 Months Ended
Jun. 30, 2025
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation - MGE Energy and MGE. During the three and six months ended June 30, 2025, MGE recorded $0.5 million and $1.7 million, respectively, in compensation expense related to share-based compensation awards compared to $0.7 million and $1.9 million, respectively, for the comparable periods in 2024. In the first quarter of 2025, MGE distributed cash payments of $2.0 million and 11,213 shares of common stock related to awards that were granted in 2022 under the 2021 Incentive Plan. In March 2025, MGE granted 18,136 performance units and 26,398 restricted stock units under the 2021 Incentive Plan to eligible employees and non-employee directors. Share-based compensation expense is recognized 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 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.

Share-Based Compensation

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

Share-Based Compensation - MGE Energy and MGE.

During the three and six months ended June 30, 2025, MGE recorded $0.5 million and $1.7 million, respectively, in compensation expense related to share-based compensation awards compared to $0.7 million and $1.9 million, respectively, for the comparable periods in 2024.

In the first quarter of 2025, MGE distributed cash payments of $2.0 million and 11,213 shares of common stock related to awards that were granted in 2022 under the 2021 Incentive Plan.

In March 2025, MGE granted 18,136 performance units and 26,398 restricted stock units under the 2021 Incentive Plan to eligible employees and non-employee directors.

Share-based compensation expense is recognized 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 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.

MGE ENERGY INC 10-Q