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Equity Method Investments in Affiliates - Change in Equity Method Investments (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023
Change in Equity Method Investments in Affiliates [Roll Forward] |  |
Balance, as of December 31, 2023 | $ 2,288.5 |
Distributions of earnings | (357.3) | $ (421.7)
Balance, as of September 30, 2024 | 2,148.4 |
Equity Method Investee |  |
Change in Equity Method Investments in Affiliates [Roll Forward] |  |
Balance, as of December 31, 2023 | 2,288.5 |
Investments in Affiliates | 12.3 |
Earnings | 292.6 |
Intangible amortization and impairments | (104.3) |
Distributions of earnings | (357.3) |
Foreign currency translation | 16.6 |
Balance, as of September 30, 2024 | $ 2,148.4 |

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