Capital Structure - Employee Exchanges (Details) |
12 Months Ended | |
---|---|---|
Dec. 31, 2018
shares
|
Dec. 31, 2017
shares
|
|
Virtu Financial | ||
Class of Stock [Line Items] | ||
Ownership interest (as a percent) | 56.70% | |
VFH | ||
Class of Stock [Line Items] | ||
Common stock exchange ratio | 1 | |
VFH | Class A | ||
Class of Stock [Line Items] | ||
Issuance of common stock in connection with employee exchanges (in shares) | 4,089,598 | 1,355,763 |