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Noncontrolling Interests (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | $ 649.2 | $ 321.1
Ark |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | 397.9 | 336.9
Noncontrolling equity attributable to management's equity incentives | 40.3 | 21.0
HG Global |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | (9.3) | 0.8
Kudu |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | 133.7 | 113.8
Bamboo |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | 117.6 | 0.0
Other |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | 9.3 | 9.4
Total, excluding BAM |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | 649.2 | 460.9
BAM |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Equity | $ 0.0 | $ (139.8)
Ark |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Percentage | 28.00% | 28.00%
HG Global |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Percentage | 3.10% | 3.10%
Kudu |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Percentage | 9.90% | 10.50%
Bamboo |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Percentage | 27.20% | 0.00%
BAM |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling Percentage | 0.00% | 100.00%

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