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Transactions with Affiliates (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Equity Interests in Real Estate Ventures [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Related Party Transaction, Purchases from Related Party | $ 896.4 | $ 686.4 | $ 723.3
Loans and Leases Receivable, Related Parties | 179.2 | 122.4 |
Employees [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Loans and Leases Receivable, Related Parties | 456.6 | 377.2 |
Employees [Member] | Loans related to co-investments [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Loans and Leases Receivable, Related Parties | 67.0 | 54.0 |
Employees [Member] | Travel, relocation and other miscellaneous advances [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Loans and Leases Receivable, Related Parties | $ 389.6 | $ 323.2 |

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