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Equity Method Investments in Affiliates - Change in Equity Method Investments (Details) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Change in Equity Method Investments in Affiliates [Roll Forward] |  |
Balance, as of December 31, 2021 | $ 2,134.4 |
Distributions of earnings | (276.4) | $ (226.6)
Return of capital | (0.8) | $ 0.0
Balance, as of June 30, 2022 | 2,104.1 |
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 | 137.0 |
Intangible amortization and impairments | (57.9) |
Distributions of earnings | (276.4) |
Return of capital | (0.8) |
Foreign currency translation | (11.2) |
Other | (3.8) |
Balance, as of June 30, 2022 | $ 2,104.1 |

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