A non-GAAP measure defined as income from continuing operations before interest expense, net; provision for income taxes; depreciation and amortization expense; loss on extinguishment of long-term debt; asset impairment charges; gains or losses on the dispositions of businesses and assets; restructuring and other items.

No definition available.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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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
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-18

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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SEGMENTS AND GEOGRAPHIC INFORMATION - Reconciliation of Segment Reporting to Consolidated (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Dec. 31, 2023
Segment Reporting Information [Line Items]
Number of operating segments \| segment			5
Total Segment Adjusted EBITDA	$ 89.3	$ 74.1	$ 160.8	$ 136.5
Engineered Materials
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	25.2	11.8	29.5	0.1
Latex Binders
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	25.6	23.5	51.3	47.5
Plastics Solutions
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	16.3	24.6	39.0	48.2
Polystyrene
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	6.6	1.7	19.2	10.6
Americas Styrenics
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	$ 15.6	$ 12.5	$ 21.8	$ 30.1
AmSty
Segment Reporting Information [Line Items]
Percentage of ownership underlying net assets	50.00%		50.00%		50.00%
AmSty \| Americas Styrenics
Segment Reporting Information [Line Items]
Percentage of ownership underlying net assets	50.00%		50.00%