Acquisitions - Unaudited Supplemental Pro Forma Financial Information (Details) - ICD Acquisition - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2024
Business Combination [Line Items]
Revenue	$ 456,753	$ 1,317,022
Operating income	172,443	500,663
Net income attributable to Tradeweb Markets Inc.	$ 122,629	$ 365,832

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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