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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2024
Accounting Policies [Abstract] |
Schedule of Cash and Cash Equivalents [Table Text Block] | The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows:
(In millions) | As of
| March 31, 2024 |  | December 31, 2023 |  | March 31, 2023 |  | December 31, 2022
Cash and cash equivalents | $ | 8.4 |  |  | $ | 13.2 |  |  | $ | 8.1 |  |  | $ | 7.7 |
Restricted cash and cash equivalents | 559.2 |  |  | 457.7 |  |  | 480.0 |  |  | 410.0 |
Total cash and cash equivalents and restricted cash and cash equivalents | $ | 567.6 |  |  | $ | 470.9 |  |  | $ | 488.1 |  |  | $ | 417.7 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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