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Basis of Presentation, Organization and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Accounting Policies [Abstract] |
Schedule of Property, Plant and Equipment | For financial reporting purposes, provisions for depreciation are calculated on a straight-line basis over the following estimated useful lives of the underlying assets:
Property, Plant and Equipment Classification | Estimated Useful Lives
Buildings and improvements | 30-40 years
Machinery and equipment | 5-15 years
Office equipment | 3-10 years
The “Property, plant and equipment, net” line item in the consolidated statements of financial position consisted of the following:
| As of December 31,
(Dollars in millions) | 2023 |  | 2022
Land and improvements | $ | 16.8 |  |  | $ | 23.9 |
Buildings and improvements | 177.2 |  |  | 169.5 |
Machinery and equipment | 343.0 |  |  | 334.1 |
Office equipment | 70.7 |  |  | 61.5 |
Property plant and equipment, gross | 607.7 |  |  | 589.0 |
Accumulated depreciation | (385.7) |  |  | (381.6) |
Property, plant and equipment, net | 222.0 |  |  | 207.4 |
Construction in process | 144.3 |  |  | 151.0 |
Total property, plant and equipment, net | $ | 366.3 |  |  | $ | 358.4 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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