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Limited Partnership Interests in Newmark Holdings and BGC Holdings (Details) shares in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 shares | Jun. 30, 2024 shares | Dec. 13, 2017
Related Party Transaction |  |  |
Limited partnership units exchange ratio | 0.4545 | 0.4545 |
Payout period for post-termination awards |  | 4 years |
Percentage to preferred units | 0.6875% |  |
Percentage to preferred units per calendar year |  | 2.75% |
Class A Common Stock |  |  |
Related Party Transaction |  |  |
Limited partnership units exchange ratio |  |  | 1
NEWMARK Group Inc | Class A Common Stock |  |  |
Related Party Transaction |  |  |
Limited partnership units exchange ratio | 0.9248 | 0.9248 |
NEWMARK Group Inc | Class B Common Stock |  |  |
Related Party Transaction |  |  |
Exchangeable preferred limited partnership units (in shares) | 24.9 | 24.9 |

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