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Affiliated Companies (Tables) | 6 Months Ended
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Jun. 30, 2025
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Investments in Affiliated Companies | The following table summarizes the aggregate carrying amounts of our investments in affiliated companies that are accounted for under the equity method and our investments in affiliated companies that are not accounted for under the equity method:
| June 30, |  | December 31,
($ in millions) | 2025 |  | 2024
Aggregate carrying value of investments in affiliated companies: |  |  |
Equity method affiliates | $ | 217.4 |  |  | $ | 194.9 |
Non-equity method affiliates | 7.3 |  |  | 7.2 |
Total investments in affiliated companies | $ | 224.7 |  |  | $ | 202.1 |
The following table summarizes the amounts due to and from affiliates in the condensed consolidated balance sheets:
|  | June 30, |  | December 31,
($ in millions) |  | 2025 |  | 2024
Payables due to affiliates |  | $ | 24.8 |  |  | $ | 18.7 |
Receivables due from affiliates |  | $ | 2.2 |  |  | $ | 2.5 |
The following table summarizes the Company's affiliate transactions:
| Three Months Ended June 30, |  | Six Months Ended June 30,
($ in millions) | 2025 |  | 2024 |  | 2025 |  | 2024
Purchases from (and payments to) affiliates | $ | 30.2 |  |  | $ | 24.9 |  |  | $ | 57.9 |  |  | $ | 53.5 |
Sales to affiliates | $ | 2.8 |  |  | $ | 4.0 |  |  | $ | 6.0 |  |  | $ | 7.2 |

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- Definition Tabular disclosure of investments in and advances to affiliates. Does not include the tabular disclosure of the disaggregation of investments in and advances to affiliates across legal entities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 + Details
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