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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2025
Fair Value Disclosures [Abstract] |
Schedule of Marketable Securities | As of September 30, 2025 and December 31, 2024, the cost and market values of our debt and equity securities were as follows:
| Cost |  | Fair Value |  | Gross Unrealized Gains |  | Gross Unrealized Losses
Balance as of September 30, 2025 |  |  |  |  |  |  |
Available-for-sale debt securities | $ | 12.1 |  |  | $ | 12.3 |  |  | $ | 0.2 |  |  | $ | — |
Equity securities | 20.0 |  |  | 20.0 |  |  | — |  |  | — |
Total debt and equity securities | $ | 32.1 |  |  | $ | 32.3 |  |  | $ | 0.2 |  |  | $ | — |
Balance as of December 31, 2024 |  |  |  |  |  |  |
Available-for-sale debt securities | $ | 12.1 |  |  | $ | 12.3 |  |  | $ | 0.2 |  |  | $ | — |
Equity securities | 20.0 |  |  | 20.0 |  |  | — |  |  | — |
Total debt and equity securities | $ | 32.1 |  |  | $ | 32.3 |  |  | $ | 0.2 |  |  | $ | — |
Schedule of Investments Classified by Contractual Maturity Date | Scheduled maturities of our debt securities were as follows:
| Cost | Fair Value
After 5 years through 10 years | $ | 12.1 |  | $ | 12.3 |
Total debt securities | $ | 12.1 |  | $ | 12.3 |
Schedule of Assets and Liabilities Subject to Fair Value Measurements | Our population of assets and liabilities subject to fair value measurements at September 30, 2025 was as follows:
| Fair Value |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |
Equity securities | $ | 20.0 |  |  | $ | — |  |  | $ | — |  |  | $ | 20.0 |
Debt securities | 12.3 |  |  | — |  |  | — |  |  | 12.3 |
Foreign currency forward contracts | 0.7 |  |  | — |  |  | 0.7 |  |  | — |
Cross-currency swaps | 2.4 |  |  | — |  |  | 2.4 |  |  | — |
Total assets | 35.4 |  |  | — |  |  | 3.1 |  |  | 32.3 |
Liabilities: |  |  |  |  |  |  |
Foreign currency forward contracts | — |  |  | — |  |  | — |  |  | — |
Cross-currency swaps | 17.9 |  |  | — |  |  | 17.9 |  |  | — |
Interest rate swaps | 0.8 |  |  | — |  |  | 0.8 |  |  | — |
Total liabilities | $ | 18.7 |  |  | $ | — |  |  | $ | 18.7 |  |  | $ | — |
Our population of assets and liabilities subject to fair value measurements at December 31, 2024 was as follows:
| Fair Value |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |
Equity securities | $ | 20.0 |  |  | $ | — |  |  | $ | — |  |  | $ | 20.0 |
Debt securities | 12.3 |  |  | — |  |  | — |  |  | 12.3 |
Foreign currency forward contracts | 0.8 |  |  | — |  |  | 0.8 |  |  | — |
Cross-currency swaps | 3.4 |  |  | — |  |  | 3.4 |  |  | — |
Interest rate swaps | 0.1 |  |  | — |  |  | 0.1 |  |  | — |
Total assets | 36.6 |  |  | — |  |  | 4.3 |  |  | 32.3 |
Liabilities: |  |  |  |  |  |  |
Interest rate swaps | 0.2 |  |  | — |  |  | 0.2 |  |  | — |
Total liabilities | $ | 0.2 |  |  | $ | — |  |  | $ | 0.2 |  |  | $ | — |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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