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Stockholders' Equity (Reclassification From Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | [2] | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  | $ 513,559 | [1] | $ 438,267 | [1] | $ 407,392 | [1] | $ 687,197 | [1] | $ 730,599 |  | $ 674,715 |  | $ 677,215 |  | $ 477,279 |  |  |  |
Income tax expense (benefit) |  | $ (1,922) | [3] | $ 7,280 | [3] | $ (11,458) | [3] | $ (44,283) | [3] | $ 19,514 | [4] | $ (12,565) | [4] | $ (15,322) | [4] | $ (12,943) | [4] | $ (50,383) | $ (21,316) | $ (20,147)
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (89,654) | (148,000) | 36,734
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from continuing operations before income taxes and income (loss) from equity method investees | [5] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,423 |  | 4,906
Net income from discontinued operations, net of taxes | [6] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 38,795 | (10,092)
Income tax expense (benefit) | [7] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 857 |  | 1,483
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,566 | $ 38,795 | (6,669)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member] | Commodity Contracts [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [8] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,538 |  | 3,648
Cost of goods sold | [9] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (2,115) |  | $ 1,258
[1] | The fourth quarter of 2020 includes a pretax loss on sale of assets, net of $22.4 million related to the sale of the Hereford, Texas ethanol plant and a loss related to GPCC of $0.5 million. The third quarter of 2020 includes a gain of $2.0 million related to GPCC. The first quarter of 2020 includes a goodwill impairment charge of $24.1 million.
[2] | During the third quarter of 2020, the company identified an immaterial issue which resulted in the overstatement of both revenues and cost of goods sold within the agribusiness and energy services segment as previously reported for the three and six months ended June 30, 2020. The second quarter revenues and cost of goods sold reflected in the quarterly financial data have been revised to correct these amounts.
[3] | The fourth quarter of 2020 includes the recognition of a $8.5 million valuation allowance which impacted income tax expense.
[4] | The fourth quarter of 2019 includes the recognition of a $25.9 million valuation allowance which impacted income tax expense.
[5] | Income (loss) from continuing operations before income taxes and income (loss) from equity method investees
[6] | Net income from discontinued operations, net of income taxes
[7] | Income tax benefit
[8] | Revenues
[9] | Costs of goods sold

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