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Other Operating Charges, net (Tables) | 6 Months Ended
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Jun. 30, 2022
Other Income and Expenses [Abstract] |
Schedule of Other Operating Cost and Expense, by Component [Table Text Block] |
| Quarter Ended June 30, |  | Six Months Ended June 30,
| 2022 | 2021 |  | 2022 | 2021
Reorganization and other expenses | $ | 0.1 |  | $ | 4.0 |  |  | $ | 1.6 |  | $ | 4.0 |
Costs associated with mill closure | — |  | 41.7 |  |  | 0.4 |  | 41.7 |
Impairment of equipment | 4.6 |  | — |  |  | 4.6 |  | — |
Directors' equity-based compensation expense | 1.1 |  | (1.1) |  |  | (0.3) |  | (0.8) |
| $ | 5.7 |  | $ | 44.5 |  |  | $ | 6.3 |  | $ | 44.9 |

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- Definition Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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