| Schedule of Common Stock Outstanding Roll Forward [Table Text Block] |
The share issuances discussed above, together with shares issued pursuant to stock-based compensation arrangements, resulted in the following changes in outstanding common stock:
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Three Months Ended |
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Six Months Ended |
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June 30, |
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June 30, |
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2026 |
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2025 |
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2026 |
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2025 |
Common stock shares outstanding at beginning of period |
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36,753,208 |
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36,536,628 |
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36,541,849 |
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36,489,641 |
Shares issued: |
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At-the-market offering program |
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— |
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— |
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154,321 |
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— |
Stock-based compensation |
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— |
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— |
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22,050 |
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11,213 |
Stock plan |
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37,444 |
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5,221 |
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72,432 |
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40,995 |
Public offering |
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990,099 |
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— |
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990,099 |
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— |
Common stock shares outstanding at end of period |
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37,780,751 |
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36,541,849 |
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37,780,751 |
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36,541,849 |
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| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Potentially dilutive securities for MGE Energy consist of restricted stock units and shares under the forward equity sale agreements, as discussed above.
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Three Months Ended |
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Six Months Ended |
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June 30, |
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June 30, |
(In thousands) |
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2026 |
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2025 |
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2026 |
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2025 |
Net income attributed to common shareholders |
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33,353 |
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26,498 |
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81,834 |
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68,090 |
Weighted average common shares outstanding - basic |
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37,351 |
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36,540 |
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36,972 |
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36,526 |
Effect of dilutive securities: |
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Dilutive effect of stock-based compensation awards |
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43 |
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29 |
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26 |
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31 |
Dilutive effect of forward equity sale agreement |
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62 |
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— |
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31 |
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— |
Weighted average common shares outstanding - diluted |
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37,456 |
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36,569 |
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37,029 |
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36,557 |
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Basic earnings per share |
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$0.89 |
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$0.73 |
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$2.21 |
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$1.86 |
Diluted earnings per share |
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$0.89 |
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$0.72 |
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$2.21 |
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$1.86 |
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