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Asset Management Fees - Narrative (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues |  | $ 1,373.0 | $ 723.0 | $ 848.0
Total expenses |  | 733.0 | 536.0 | 465.0
Related Party |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Due from Affiliates |  |  | 3.0 |
Management fee expense |  | $ 1.9 | 2.0 | $ 2.4
Total revenues | $ 5.0 |  |  |
Total expenses | $ 3.0 |  |  |
Asset Management and Performance Allocation Fees | Related Party |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Management and performance fees receivable |  |  | $ 10.0 |

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