XML 23 R22.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Share-Based Compensation | 12 Months Ended
--- | ---
Dec. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-Based Compensation | Share-Based Compensation - MGE Energy and MGE. Under MGE Energy's Director Incentive Plan and its Performance Unit Plan, non-employee directors and eligible employees, respectively, may receive performance units that entitle the holder to receive a cash payment equal to the value of a designated number of shares of MGE Energy's common stock, plus dividend equivalent payments thereon, at the end of the performance period set in the award. In accordance with the plans' provisions, these awards are subject to prescribed vesting schedules and must be settled in cash. Accordingly, no shares of common stock will be issued in connection with the plans. On the grant date, the cost of the director or employee services received in exchange for a performance unit award is measured based on the current market value of MGE Energy common stock. The fair value of the awards is remeasured quarterly, including as of December 31, 2019, as required by applicable accounting standards. Changes in fair value as well as the original grant are recognized as compensation cost. Since this amount is remeasured throughout the vesting period, the compensation cost is subject to variability. Units granted under the Director Incentive Plan are subject to a three-year vesting schedule. Grants since January 1, 2018, under this plan are as follows:
| Grant Date |  | MGE Energy Units Granted |
| January 17, 2020 |  | 5,048 |
| January 18, 2019 |  | 5,175 |
| March 1, 2018 |  | 1,106 |
| January 19, 2018 |  | 4,704 |
Units granted under the Performance Unit Plan are subject to a five-year vesting schedule. Grants since January 1, 2016, under this plan are as follows:
| Grant Date |  | MGE Energy Units Granted |
| February 15, 2019 |  | 17,022 |
| February 16, 2018 |  | 17,830 |
| March 1, 2017 |  | 14,704 |
| February 19, 2016 |  | 19,055 |
For nonretirement eligible employees under the Performance Unit Plan, stock-based compensation costs are accrued and recognized using the graded vesting method. Compensation cost for retirement eligible employees or employees that will become retirement eligible during the vesting schedule are recognized on an abridged horizon as retirement eligibility accelerates vesting.During the years ended December 31, 2019, 2018 and 2017, MGE recorded $3.0 million, $1.1 million, and $1.0 million, respectively, in compensation expense as a result of awards under the plans. In January 2019, cash payments of $1.5 million were distributed relating to awards that were granted under the plans in 2016, for the Director Incentive Plan, and 2014, for the Performance Unit Plan. No forfeitures of units occurred during the years ended December 31, 2019, 2018, and 2017. As of December 31, 2019, $6.2 million of outstanding awards are vested. Of this amount, no cash settlements have occurred as cash payments are only made at the end of the period covered by the awards.

X
- 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
Name: | us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration