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Organization (Details) $ / shares in Units, $ in Thousands, $ in Millions |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 19, 2024 USD ($) | Aug. 31, 2023 AUD ($) | Jun. 30, 2024 $ / shares shares | Jun. 30, 2023 shares | Jun. 30, 2024 $ / shares shares | Jun. 30, 2023 shares | Dec. 31, 2023 $ / shares
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Stock split ratio, common stock |  |  |  |  | 1 |  |
Weighted average unvested RSUs and unsettled vested PRSUs that were considered participating securities (in shares) |  |  | 125,012 | 241,963 | 142,484 | 266,790 |
Dilutive securities (in shares) |  |  | 1,733,789 |  | 1,842,327 |  |
Class A Common Stock |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.00001 |  | $ 0.00001 |  | $ 0.00001
Class B Common Stock |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | 0.00001 |  | 0.00001 |  | 0.00001
Class C Common Stock |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | 0.00001 |  | 0.00001 |  | 0.00001
Class D Common Stock |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.00001 |  | $ 0.00001 |  | $ 0.00001
R8FIN |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Purchase price, net of cash acquired and excluding working capital and other closing adjustments | $ | $ 125,902 |  |  |  |  |  |
Yieldbroker |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Purchase price, net of cash acquired and excluding working capital and other closing adjustments | $ |  | $ 123.6 |  |  |  |  |
Tradeweb Markets LLC |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Ownership interest |  |  | 90.20% | 90.20% | 90.20% | 90.20% | 90.20%
Ownership percentage, continuing LLC owners |  |  | 9.80% | 9.80% | 9.80% | 9.80% | 9.80%
Tradeweb Markets LLC | Refinitiv |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Ownership interest |  |  | 50.80% |  | 50.80% |  |
Tradeweb Markets LLC | Public Investors |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Ownership percentage, continuing LLC owners |  |  | 49.20% |  | 49.20% |  |
Tradeweb Markets LLC | Class D Common Stock | Other Stockholders |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Ownership percentage, continuing LLC owners |  |  | 10.00% |  | 10.00% |  |
Tradeweb Markets Inc | Refinitiv |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Ownership interest |  |  | 89.90% |  | 89.90% |  |
Tradeweb Markets Inc | Public Investors |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Voting power percentage |  |  | 10.10% |  | 10.10% |  |
Tradeweb Markets Inc | Class A Common Stock | Public Investors |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Number of share owned (in shares) |  |  | 116,282,605 |  | 116,282,605 |  |
Tradeweb Markets Inc | Class B Common Stock | Refinitiv |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Number of share owned (in shares) |  |  | 96,933,192 |  | 96,933,192 |  |
Tradeweb Markets Inc | Class C Common Stock | Refinitiv |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Number of share owned (in shares) |  |  | 18,000,000 |  | 18,000,000 |  |
Tradeweb Markets Inc | Class D Common Stock | Refinitiv |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Number of share owned (in shares) |  |  | 4,988,329 |  | 4,988,329 |  |
Tradeweb Markets Inc | Class D Common Stock | Other Stockholders |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net |  |  |  |  |  |  |
Number of share owned (in shares) |  |  | 88,644 |  | 88,644 |  |
Voting power percentage |  |  | 0.10% |  | 0.10% |  |

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