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Noncontrolling Interest | 12 Months Ended
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Dec. 31, 2019
MGE [Member] |
Noncontrolling Interest [Line Items] |
Noncontrolling Interest | Noncontrolling Interest - MGE. The noncontrolling interest on MGE's consolidated balance sheets as of December 31 was as follows:
| (In thousands) |  | 2019 |  | 2018 |
| MGE Power Elm Road(a) | $ | 97,172 | $ | 97,519 |
| MGE Power West Campus(a) |  | 43,131 |  | 43,935 |
| Total Noncontrolling Interest | $ | 140,303 | $ | 141,454 |
The net income attributable to noncontrolling interest, net of tax, for the years ended December 31, 2019, 2018, and 2017 was as follows:
| (In thousands) |  | 2019 |  | 2018 |  | 2017 |
| MGE Power Elm Road(a) | $ | 15,153 | $ | 15,384 | $ | 29,274 |
| MGE Power West Campus(a) |  | 7,196 |  | 7,168 |  | 13,963 |
| Net Income Attributable to Noncontrolling Interest, Net of Tax | $ | 22,349 | $ | 22,552 | $ | 43,237 |
(a)MGE Power Elm Road and MGE Power West Campus are not subsidiaries of MGE; however, they have been consolidated in the consolidated financial statements of MGE (see Footnote 3). MGE Power Elm Road and MGE Power West Campus are 100% owned by MGE Power, and MGE Power is 100% owned by MGE Energy. MGE Energy's proportionate share of the equity and net income (through its wholly owned subsidiary MGE Power) of MGE Power Elm Road and MGE Power West Campus is classified within the MGE consolidated financial statements as noncontrolling interest. In 2017, there was a $14.8 million and $6.8 million one-time tax impact as a result of the Tax Act for MGE Power Elm Road and MGE Power West Campus, respectively. The Tax Act reduced the federal tax rate from 35% to 21%.

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- Definition The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 + Details
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