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Background and Basis of Presentation (Details) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 segment | Dec. 14, 2020 USD ($)
Background and Basis of Presentation [Line Items] |  |
Number of reporting units | segment | 2 |
Number of operating segments | segment | 2 |
Performance Materials |  |
Background and Basis of Presentation [Line Items] |  |
Purchase price to sell Performance Materials | $ |  | $ 650,000
Purchase price to sell Performance Chemicals | $ |  | $ 650,000

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- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599 + Details
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