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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Income Tax Expense (Benefit) | $ (658) | $ 586 | $ 13,830 | $ 1,080
Effective Tax Rate | (1.90%) | 2.00% | 8.10% | 0.80%
Effective Income Tax Rate Reconciliation, State Rate Changes | $ 3,800 |  | $ 3,800 |
Effective Income Tax Rate Reconciliation, Tax Credit, from Federal Production Tax Credits associated with increased wind production | $ 1,500 |  | 2,400 |
Colorado Electric and Nebraska Gas |  |  |  |
Effective Income Tax Rate Reconciliation Prior Year Credit - Tax Cuts And Jobs Act Of 2017 Amount, Tax Benefit from Bill Credit |  |  | $ 10,000 |

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