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Discontinued Operations - Additional Information (Details) - Discontinued operations - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jan. 30, 2023
GPT |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |  |
Proceeds from sale of investment projects |  |  |  |  | $ 31.4
Gain (loss) on sales of business | $ 14.6 |  |  |  |
Engineered Materials Segment |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |  |
Income tax expense |  | $ 0.9 | $ (0.1) | $ (0.9) |
Engineered Materials Segment | Adjustment |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |  |
Income tax expense |  | $ 0.1 |  | $ 0.5 |

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