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Financial instruments | 12 Months Ended
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Dec. 31, 2024
Financial instruments |
Financial instruments | Note 19 – Financial instruments: ​ See Note 6 for information on how we determine the fair value of our marketable securities. See Note 3 for information on how we determine fair value of our earn-out liability related to the LPC acquisition. The fair value measurement is based on significant inputs not observable in the market and therefore represents a Level 3 measurement as defined in ASC 820. Accretion of the earn-out liability was not material in 2024. There has been no other activity subsequent to Acquisition Date impacting the fair value of the acquisition earn-out liability. The fair value of the acquisition earn-out liability is included in other noncurrent liabilities on the Consolidated Balance Sheet. ​ The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure as of December 31, 2023 and 2024: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, 2023 |  | December 31, 2024
​ | ​ | Carrying | ​ | Fair | ​ | Carrying | ​ | Fair
​ | ​ | amount | ​ | value | ​ | amount | ​ | value
​ | ​ | (In millions)
Cash, cash equivalents and restricted cash equivalents | ​ | $ | 462.0 | ​ | $ | 462.0 | ​ | $ | 378.6 | ​ | $ | 378.6
Long-term debt: | ​ |  | ​ | ​ |  |  | ​ |  | ​ | ​ |  |
Kronos 9.50% Senior Secured Notes due 2029 | ​ |  | — | ​ |  | — | ​ |  | 365.4 | ​ |  | 403.4
Kronos 3.75% Senior Secured Notes due 2025 | ​ |  | 440.9 | ​ |  | 424.5 | ​ |  | 78.3 | ​ |  | 77.9
Kronos revolving credit facility | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10.0 | ​ | ​ | 10.0
LandWell bank note payable | ​ |  | 12.2 | ​ |  | 12.2 | ​ |  | 11.4 | ​ |  | 11.4
​ At December 31, 2024, the estimated market price of Kronos’ 3.75% Senior Secured Notes due 2025 was €996 per €1,000 principal amount, and the estimated market price of Kronos’ 9.50% Senior Secured Notes due 2029 was €1,101 per €1,000 principal amount. The fair values of Kronos’ 3.75% Senior Secured Notes due 2025 and Kronos’ 9.50% Senior Secured Notes due 2029 were based on quoted market prices; however, these quoted market prices represented Level 2 inputs because the markets in which the 3.75% Senior Secured Notes due 2025 and the 9.50% Senior Secured Notes due 2029 trade were not active. Due to the variable interest rate, the carrying amount of Kronos’ revolving credit facility is deemed to approximate fair value. The fair value of other fixed-rate debt, which represents Level 2 inputs, is deemed to approximate carrying value. In addition, at December 31, 2024, Kronos has a $53.7 million subordinated, unsecured term loan payable to a related party, Contran, due September 2029, and Valhi has $44.6 million outstanding on an unsecured revolving credit facility with Contran. See Note 9. Due to their near-term maturities, the carrying amounts of accounts receivable and accounts payable are considered equivalent to fair value. See Notes 4 and 10.

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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/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
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