Regulatory Requirement - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Virtu Financial Capital Markets Llc
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum capital required to be maintained in connection with the operation of the company's DMM business	$ 1,000
Required amount under exchange rules	1,000
Required amount under exchange rules for every 0.1% NYSE transaction dollar volume	$ 75
Percentage of NYSE transaction dollar volume	0.10%
VAL
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash in special reserve bank accounts for the benefit of customers	$ 25,400	$ 28,700
Cash in reserve bank accounts for the benefit of proprietary accounts of brokers	6,200	6,100
Virtu Europe Trading Limited
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Deposit funds for trade	50	36
Virtu ITG Hong Kong Limited
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital settlement	$ 30	$ 30