| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
| Period End Date | 12/31/2025 | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 |
| Related parties | 1,365.50 | 1,312.10 | 1,612.10 | 1,671.10 | 1,337.00 | 1,025.50 | 1,191.60 | 1,204.50 | 1,198.08 | 1,178.63 |
| Third-party customers | 1,162.40 | 908.20 | 573.30 | 1,106.20 | 875.50 | 579.60 | 645.00 | 688.70 | 391.00 | 140.46 |
| Total Revenues | 2,527.90 | 2,220.30 | 2,185.40 | 2,777.30 | 2,212.50 | 1,605.10 | 1,836.60 | 1,893.20 | 1,589.08 | 1,319.09 |
| Cost of goods sold | 2,271.50 | 2,035.30 | 2,093.50 | 2,730.60 | 2,088.30 | 1,641.60 | 1,860.50 | 1,916.10 | 1,460.48 | 1,330.14 |
| Gross Profit | 256.40 | 185.00 | 91.90 | 46.70 | 124.20 | (36.50) | (23.90) | (22.90) | 128.61 | (11.04) |
| Goodwill impairment | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Selling, general and administrative expenses | 79.90 | 56.80 | 44.30 | 37.50 | 57.60 | 43.50 | 47.40 | 40.20 | 45.45 | 40.26 |
| Other operating expenses | (18.40) | (6.80) | (15.80) | 0.00 | (0.60) | (0.50) | (0.80) | (0.40) | (2.11) | (3.86) |
| Asset impairment charge | -- | -- | -- | (159.40) | -- | -- | -- | -- | -- | -- |
| Ravenswood impairment | -- | -- | -- | -- | -- | -- | -- | -- | 5.50 | (26.83) |
| Helguvik impairment | -- | -- | -- | -- | -- | -- | -- | 4.50 | 7.31 | (152.22) |
| Operating Income (loss) | 158.10 | 121.40 | 31.80 | (150.20) | 66.00 | (80.50) | (72.10) | (59.00) | 93.86 | (234.21) |
| Interest expense | 41.90 | 36.40 | 33.70 | 29.30 | 28.80 | 29.70 | 23.00 | 22.40 | 22.17 | 22.22 |
| Interest expense - third party | -- | -- | -- | -- | 1.60 | 1.90 | -- | -- | -- | -- |
| Interest expense - related party | -- | -- | 1.80 | -- | -- | -- | -- | -- | -- | -- |
| Interest expense - affiliates | 5.80 | 6.70 | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest expense - term loan | -- | -- | -- | -- | -- | -- | 2.10 | -- | -- | -- |
| Gain (loss) on remeasurement of equity investment | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest income | 9.20 | 2.10 | 2.00 | 0.50 | 0.80 | 0.80 | 0.80 | 1.50 | 1.40 | 0.76 |
| Interest income - related parties | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest income - third party | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Other income (expense) | (14.50) | (4.50) | (3.30) | 15.30 | 3.10 | 3.50 | (1.10) | 3.00 | (1.16) | 1.32 |
| Gain (loss) on early extinguishment of debt | (7.70) | -- | -- | -- | (24.70) | (1.20) | -- | -- | -- | -- |
| Net gain (loss) on forward contracts | -- | -- | (61.80) | 197.10 | (212.40) | (17.30) | 12.00 | 6.30 | (16.55) | 3.49 |
| Gain on bargain purchase | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain (loss) on bargain purchase | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Bargain purchase gain | -- | 245.90 | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain (loss) on fair value of contingent consideration | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Unrealized gain on fair value of contingent consideration | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net gain (loss) on forward and derivative contracts - affiliates | -- | (0.50) | -- | -- | -- | -- | -- | -- | -- | -- |
| Net gain (loss) on forward and derivative contracts - nonaffiliates | (94.70) | 2.50 | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) before income taxes, minority interest, equity in earnings of join | 2.70 | 323.80 | (66.80) | 33.40 | (197.60) | (126.30) | (85.50) | (70.60) | 55.37 | (250.87) |
| Income tax benefit (expense) | (13.10) | 3.20 | (14.60) | 47.40 | (30.60) | (3.10) | (8.40) | (0.20) | 7.58 | 2.82 |
| Current- U.S.federal current benefit (expense) | -- | 0.00 | 0.50 | -- | -- | -- | -- | 0.00 | (0.11) | (0.23) |
| Current- State current benefit (expense) | -- | 0.00 | -- | -- | -- | -- | (0.10) | (1.10) | 1.24 | (0.13) |
| Deferred- U.S.federal deferred benefit (expense) | -- | 0.00 | (0.30) | -- | (0.20) | (1.20) | (2.20) | (1.60) | (2.52) | (1.56) |
| Deferred- Foreign deferred expense | -- | (1.70) | (30.50) | -- | (30.50) | (5.90) | (6.00) | 1.70 | (3.32) | (0.98) |
| Deferred- State deferred benefit (expense) | -- | 0.00 | (0.10) | -- | -- | -- | (0.20) | -- | (0.01) | -- |
| Current- Foreign current expense (benefit) | -- | 4.90 | 15.80 | -- | 0.10 | 4.00 | 0.10 | 0.80 | 12.31 | 5.73 |
| Minority interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in earnings of joint venture | -- | 0.10 | (0.10) | (0.10) | (0.10) | (0.10) | 0.60 | 4.20 | 0.79 | 1.27 |
| BHH Impairment | -- | -- | -- | -- | -- | -- | (4.30) | -- | -- | -- |
| Income Before Extraordinary Income & Accounting Change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of change in accounting principle, net of tax benefit | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net (loss) income | 15.80 | 320.70 | (52.30) | -- | -- | -- | -- | -- | -- | -- |
| Net loss attributable to noncontrolling interests | (26.00) | (16.10) | (9.20) | -- | -- | -- | -- | -- | -- | -- |
| Net income (loss) | 41.80 | -- | -- | -- | -- | -- | (80.80) | -- | -- | -- |
| Preferred dividends | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Less: Net income allocated toparticipating securities | 1.80 | 17.90 | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Income (Loss) Available to Common Shareholders | 40.00 | 318.90 | (43.10) | (14.10) | (167.10) | (123.30) | (80.80) | (66.20) | 48.58 | (252.42) |
| Income (loss) applicable to common shareholders-Diluted EPS | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) before cumulative effect of change in accounting principle- Basic | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) before extraordinary item - Basic | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of change in accounting principle- Basic | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Basic) | 0.42 | 3.44 | (0.47) | (0.15) | (1.85) | (1.38) | (0.91) | (0.76) | 0.51 | (2.90) |
| Income (loss) before cumulative effect of change in accounting principle- Diluted | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) before extraordinary item- Diluted | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of change in accounting principle- Diluted | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Diluted) | 0.42 | 3.27 | (0.47) | (0.15) | (1.85) | (1.38) | (0.91) | (0.76) | 0.51 | (2.90) |
| Weighted Average Shares Outstanding (Basic) | 94.20 | 92.80 | 92.40 | 91.40 | 90.20 | 89.50 | 88.80 | 87.60 | 87.30 | 87.06 |
| Weighted Average Shares Outstanding (Diluted) | 95.30 | 98.40 | 92.40 | 91.40 | 90.20 | 89.50 | 88.80 | 87.60 | 88.02 | 87.06 |