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Income Taxes: Winter Storm Uri (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred income tax liabilities, net | $ 465,388 | $ 408,624
Internal Revenue Service (IRS) |  |
Operating Loss Carryforwards, With no Expiration Date | 607,465 |
Operating Loss Carryforwards | 476,033 |
State and Local Jurisdiction |  |
Operating Loss Carryforwards | 572,203 |
Winter Storm Uri |  |
Deferred income tax liabilities, net | 124,000 |
Winter Storm Uri | Internal Revenue Service (IRS) |  |
Operating Loss Carryforwards, With no Expiration Date | 509,000 |
Winter Storm Uri | State and Local Jurisdiction |  |
Operating Loss Carryforwards | $ 375,000 |

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