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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, 2022 | Sep. 30, 2021
Change in Equity Method Investments in Affiliates [Roll Forward] |  |
Balance, as of December 31, 2021 | $ 2,134.4 |
Distributions of earnings | (339.7) | $ (288.1)
Return of capital | (0.8) | $ (3.4)
Balance, as of September 30, 2022 | 2,046.8 |
Equity Method Investee |  |
Change in Equity Method Investments in Affiliates [Roll Forward] |  |
Balance, as of December 31, 2021 | 2,134.4 |
Investments in Affiliates | 182.8 |
Earnings | 213.2 |
Intangible amortization and impairments | (89.3) |
Distributions of earnings | (340.9) |
Return of capital | (0.8) |
Foreign currency translation | (44.1) |
Other | (8.5) |
Balance, as of September 30, 2022 | $ 2,046.8 |

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