Receivables from/Payables to Broker-Dealers and Clearing Organizations - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Outstanding principal balance	$ 261.3	$ 203.8

Represents the carrying value of the outstanding principal balance on all of the entity's short-term credit facilities.

No definition available.

Name:	virt_ShortTermCreditFacilities
Namespace Prefix:	virt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant