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Intangibles (Net of Amortization) and Goodwill (Narrative) (Details) - USD ($) | Jun. 30, 2024 | Dec. 31, 2023
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Finite-Lived Intangible Assets [Line Items] |  |
Net carrying amount of intangibles and goodwill | $ 763,467,000 | $ 124,642,000
Accumulated goodwill impairment | 0 | $ 0
Petroleum Additives [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Net carrying amount of intangibles and goodwill | 124,000,000 |
Specialty materials |  |
Finite-Lived Intangible Assets [Line Items] |  |
Net carrying amount of intangibles and goodwill | $ 639,000,000 |
Formulas And Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated economic life, in years | 8 years |
Customer Bases [Member] | Minimum [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated economic life, in years | 17 years 6 months |
Customer Bases [Member] | Maximum [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated economic life, in years | 20 years |
Trademarks and Trade Names |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated economic life, in years | 15 years |

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