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v3.25.2

Related Party Transactions - Transactions with Executive Officers and Directors (Details) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
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Jun. 10, 2025 | Mar. 04, 2025 | Oct. 08, 2024 | Oct. 07, 2024 | Aug. 08, 2024 | Jan. 02, 2024 | Jun. 30, 2025 | May 31, 2025 | Apr. 30, 2025 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of class A common stock (in shares) |  |  |  |  |  |  | 12,000 | 16,115,000 | 1,097,000 | 4,102,000 | 5,031,000 | 1,555,000 | 17,224,000 | 3,184,000 | 10,688,000 | 11,250,000 | 20,408,000 | 21,938,000
Class A Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of class A common stock (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 16,127,307 |  | 9,431,127 |  | 18,572,136 | 19,251,407
Stock repurchased, weighted average price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 9.21 |  | $ 8.32 |  | $ 9.23 | $ 7.70
Related Party | Mr. Arthur Mbanefo | Class A Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of class A common stock (in shares) | 12,205 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased, weighted average price (in dollars per share) | $ 9.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Dr. Bell | Class A Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of class A common stock (in shares) |  | 12,727 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased, weighted average price (in dollars per share) |  | $ 9.35 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Mr. Windeatt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares redeemed in period |  |  | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Mr. Windeatt | Newmark Holdings LPU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares redeemed in period (in shares) |  |  | 31,700 | 327,127 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Determination amount |  |  | $ 27,130 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Mr. Windeatt | Newmark Holdings PLPU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares redeemed in period (in shares) |  |  | 2,953 | 30,285 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Determination amount |  |  |  | $ 278,258 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares redeemed in period |  |  |  | $ 251,128 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares granted in period (in shares) |  |  |  | 27,332 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Mr. Windeatt | Class A Common Stock | Newmark Holdings LPU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares redeemed in period (in shares) |  |  |  | 239,428 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Mr. Windeatt | Class A Common Stock | Newmark Holdings LPUs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares redeemed in period (in shares) |  |  |  | 271,362 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Reporting Person | Class A Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of class A common stock (in shares) |  |  |  |  | 13,063 | 136,891 |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased, weighted average price (in dollars per share) |  |  |  |  | $ 9.11 | $ 6.98 |  |  |  |  |  |  |  |  |  |  |  |

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