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Assets Held for Sale and Discontinued Operations (Results of Operations Associated with Discontinued Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
(Loss) income from discontinued operations | $ (943) | $ (102) | $ (1,494) | $ 106
Discontinued Operation | U.K. and U.S. Refining And Marketing Operations |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Revenues | 0 | 246 | 10 | 658
Other costs and expenses (benefits) | 943 | 348 | 1,504 | 552
(Loss) income before taxes | (943) | (102) | (1,494) | 106
Income tax expense | 0 | 0 | 0 | 0
(Loss) income from discontinued operations | $ (943) | $ (102) | $ (1,494) | $ 106

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