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Supplemental Financial Statement Information - (Tables) | 6 Months Ended
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Jun. 30, 2023
Other Income and Expenses [Abstract] |
Schedule of Other Expense, Net | Other income, net for the three and six months ended June 30, 2023 and 2022 was as follows:
(in millions) | Three months ended June 30, | Six months ended June 30,
| 2023 |  | 2022 | 2023 |  | 2022
Rent and royalty income | $ | 0.7 |  |  | $ | 0.5 |  | $ | 1.3 |  |  | $ | 1.2 |
Gains from disposal of property, plant and equipment, net | — |  |  | 0.2 |  | 0.3 |  |  | 0.2 |
Net equity income (loss) on joint ventures (See Note 5) | — |  |  | 10.0 |  | (0.3) |  |  | 10.4 |
Litigation reserve | — |  |  | — |  | — |  |  | (8.6) |
Total other income, net | $ | 0.7 |  |  | $ | 10.7 |  | $ | 1.3 |  |  | $ | 3.2 |
Roll Forward of Restructuring Reserve Activity | Restructuring reserves for severance cost activity is as follows:
| Severance and Employee
| Benefit Costs
Balance at December 31, 2022 | $ | 9.8 |
Additions | 2.7 |
Payments | (0.8) |
Balance at June 30, 2023 | $ | 11.7 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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