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FAIR VALUE MEASUREMENTS | 6 Months Ended
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Jun. 30, 2024
FAIR VALUE MEASUREMENTS |
FAIR VALUE MEASUREMENTS | NOTE 13—FAIR VALUE MEASUREMENTS Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date. Level 1—Valuation is based upon quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2—Valuation is based upon quoted prices for similar assets and liabilities in active markets, or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. Level 3—Valuation is based upon other unobservable inputs that are significant to the fair value measurement. The following table summarizes the basis used to measure certain assets and liabilities at fair value on a recurring basis in the condensed consolidated balance sheets as of June 30, 2024 and December 31, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2024 |
​ | ​ | Quoted Prices in Active Markets for Identical Items | ​ | Significant Other Observable Inputs | ​ | Significant Unobservable Inputs | ​ | ​ | ​ |
Assets (Liabilities) at Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total |
Foreign exchange forward contracts—Assets |  | $ | — |  | $ | 4.1 |  | $ | — |  | $ | 4.1 | ​
Commodity economic hedges—(Liabilities) | ​ | ​ | — | ​ | ​ | (3.6) | ​ | ​ | — | ​ | ​ | (3.6) | ​
Commodity cash flow hedges—(Liabilities) | ​ | ​ | — | ​ | ​ | (4.8) | ​ | ​ | — | ​ | ​ | (4.8) | ​
Total fair value | ​ | $ | — | ​ | $ | (4.3) | ​ | $ | — | ​ | $ | (4.3) | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2023 |
​ | ​ | Quoted Prices in Active Markets for Identical Items | ​ | Significant Other Observable Inputs | ​ | Significant Unobservable Inputs | ​ | ​ | ​ |
Liabilities at Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total |
Foreign exchange forward contracts—(Liabilities) | ​ | $ | — | ​ | $ | (4.5) | ​ | $ | — | ​ | $ | (4.5) | ​
Commodity economic hedges—(Liabilities) | ​ | ​ | — | ​ | ​ | (8.1) | ​ | ​ | — | ​ | ​ | (8.1) | ​
Commodity cash flow hedges—(Liabilities) | ​ | ​ | — | ​ | ​ | (14.4) | ​ | ​ | — | ​ | ​ | (14.4) | ​
Total fair value | ​ | $ | — | ​ | $ | (27.0) | ​ | $ | — | ​ | $ | (27.0) | ​
​ The Company uses an income approach to value its derivative instruments, utilizing discounted cash flow techniques, considering the terms of the contract and observable market information available as of the reporting date, such as interest rate yield curves and currency spot and forward rates. Significant inputs to the valuation for these derivative instruments are obtained from broker quotations or from listed or over-the-counter market data, and are classified as Level 2 in the fair value hierarchy. Nonrecurring Fair Value Measurements The Company measured certain financial assets at fair value on a nonrecurring basis during the year ended December 31, 2023, which were still held as of June 30, 2024. These financial assets represent the Company’s styrene monomer assets in Boehlen, Germany, which it continued to operate until the fourth quarter of 2022 when the Company decided to close this plant in connection with the asset restructuring plan. Refer to Note 4 for further information. These assets were measured at fair value using underlying fixed asset records in conjunction with the use of industry experience and available market data, which are classified as Level 3 significant unobservable inputs in the fair value hierarchy. As of June 30, 2024 and December 31, 2023, the value of the Boehlen styrene monomer assets are recorded at $3.2 within the Company’s condensed consolidated balance sheets herein. There were no other financial assets or liabilities measured at fair value on a nonrecurring basis as of December 31, 2023. Fair Value of Debt Instruments The following table presents the estimated fair value of the Company’s outstanding debt not carried at fair value as of June 30, 2024 and December 31, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | As of | ​ | As of |
​ |  | June 30, 2024 |  | December 31, 2023 |
2029 Senior Notes | ​ | $ | 173.8 | ​ | $ | 180.4 | ​
2025 Senior Notes | ​ | ​ | 95.0 | ​ | ​ | 98.5 | ​
2028 Term Loan B | ​ | ​ | 567.6 | ​ | ​ | 564.9 | ​
2028 Refinance Term Loans | ​ | ​ | 1,099.2 | ​ | ​ | 1,087.1 | ​
Total fair value | ​ | $ | 1,935.6 | ​ | $ | 1,930.9 | ​
​ The fair value of the Company’s debt facilities above (each Level 2 securities) is determined using over-the-counter market quotes and benchmark yields received from independent vendors. The fair value amount presented reflect the Company’s carrying value of debt, net of original issuance discount. There were no other significant financial instruments outstanding as of June 30, 2024 and December 31, 2023.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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