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Discontinued Operations (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net income from discontinued operations | $ 0.0 | $ 9.8 | $ 0.0 | $ 17.6
Discontinued Operations, Disposed of by Sale |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net sales |  | 141.8 |  | 271.9
Cost of products sold |  | 108.8 |  | 217.6
Gross profit |  | 33.0 |  | 54.3
Selling expense |  | 3.8 |  | 7.4
Research and development expense |  | 2.5 |  | 4.9
General expense |  | 3.4 |  | 7.3
Total nonmanufacturing expenses |  | 9.7 |  | 19.6
Operating profit |  | 23.3 |  | 34.7
Interest expense |  | (11.9) |  | (22.7)
Other expense, net |  | (0.8) |  |
Other income, net |  |  |  | 6.9
Income from discontinued operations before income taxes |  | 10.6 |  | 18.9
Income tax expense |  | 0.9 |  | 1.5
Income from equity affiliates, net of income taxes |  | 0.1 |  | 0.2
Net income from discontinued operations |  | $ 9.8 |  | $ 17.6

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