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Equity Method Investments in Affiliates - Change in Equity Method Investments in Affiliates (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Change in Equity Method Investments in Affiliates [Roll Forward] |  |  |
Balance, beginning of period | $ 2,288.5 |  |
Distributions of earnings | (403.9) | $ (490.8) | $ (393.5)
Return of capital | (0.7) | (0.2) | (0.8)
Balance, end of period | 2,246.6 | 2,288.5 |
Equity Method Investee |  |  |
Change in Equity Method Investments in Affiliates [Roll Forward] |  |  |
Balance, beginning of period | 2,288.5 | 2,139.5 |
Investments in Affiliates | 14.3 | 349.8 |
Earnings | 442.7 | 375.6 |
Intangible amortization and impairments | (130.0) | (95.6) |
Distributions of earnings | (402.7) | (492.1) |
Return of capital | (0.7) | (0.2) |
Foreign currency translation | 34.5 | 29.3 |
Other | 0.0 | (17.8) |
Balance, end of period | $ 2,246.6 | $ 2,288.5 | $ 2,139.5

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