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v3.23.2

Related Party Transactions - Other Transactions (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 25, 2016 | Nov. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Feb. 25, 2021 | Feb. 25, 2020 | Nov. 04, 2016
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity investment |  |  |  |  | $ 0 | $ 466,000 |  |  |  |  |
Related Party |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  | $ 2,100,000 | $ 2,300,000 | 3,900,000 | 3,500,000 |  |  |  |  |
Due from related parties, write-offs |  |  |  |  |  |  | $ 600,000 |  |  |  |
Due from related parties, remaining amount receivable |  |  | 400,000 |  | 400,000 |  |  |  |  |  |
Related Party | Transactions with Newmark |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Payables to related parties |  |  | $ 0 |  | $ 0 |  |  | $ 8,300,000 |  |  |
Related Party | Subordinated Loan Agreement with Aqua |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest income |  | $ 0 |  |  |  |  |  |  |  |  |
Aqua | Cantor | Related Party |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  | 51.00% |  | 51.00% |  |  |  |  |  |
Aqua | Related Party |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Increase in authorization amount for loans and investments, other credit support arrangements |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 1,000,000 |
Authorization amount for loans and investments, other credit support arrangements |  |  |  |  |  |  |  |  | $ 21,200,000 |  |
Equity investment |  |  | $ 0 | $ 100,000 | $ 0 | $ 500,000 |  |  |  |  |
Aqua | Related Party | Subordinated Loan Agreement with Aqua |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Receivables from related parties |  |  | $ 1,000,000 |  | $ 1,000,000 |  |  |  |  |  |
Aqua | Aqua | BGC Partners, Inc. | Related Party |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest |  |  | 49.00% |  | 49.00% |  |  |  |  |  |
Lucera | Related Party | Class B Units |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Purchase of units (in shares) | 9,000 |  |  |  |  |  |  |  |  |  |
Percentage of outstanding common stock owned by parent |  |  |  |  |  |  |  |  |  |  | 100.00%

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