Condensed Consolidated Statements of Changes in Equity - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Common Stock Class A	Common Stock Class C	Common Stock Class D	Treasury Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Total Stockholders' Equity	Noncontrolling Interest	Total
Balance at Dec. 31, 2015			$ 1		$ 130,902	$ 3,525	$ 99	$ 130,708	$ 427,162	$ 557,870
Balance (in shares) at Dec. 31, 2015	38,379,858	20,976,598	79,610,490
Increase (decrease) in stockholder's/members' equity
Share based compensation					10,772			10,772		10,772
Treasury stock at Dec. 31, 2015				$ (3,819)						$ (3,819)
Treasury stock (in shares) at Dec. 31, 2015				(169,649)						(169,649)
Increase (decrease) in stockholder's/members' equity
Share based compensation (in shares)	49,088	(62,223)
Net income						25,752		25,752	97,913	$ 123,665
Foreign exchange translation adjustment							501	501	1,282	1,783
Distribution from Virtu Financial to non-controlling interest									(123,867)	(123,867)
Dividends						(28,117)		(28,117)		(28,117)
Issuance of common stock in connection with secondary offering, net of offering costs					16,677			16,677		16,677
Issuance of Common Stock in connection with secondary offering, net of offering costs (in shares)	1,103,668
Repurchase of units and corresponding number of common stock in connection with secondary offering					(17,383)			(17,383)		(17,383)
Repurchase of units and corresponding number of common stock in connection with secondary offering (in shares)		(1,103,668)
Issuance of tax receivable agreements in connection with secondary offering					1,677			1,677		1,677
Balance at Sep. 30, 2016			$ 1		$ 142,645	$ 1,160	$ 600	$ 140,587	$ 402,490	543,077
Balance (in shares) at Sep. 30, 2016	39,532,614	19,810,707	79,610,490
Treasury stock at Sep. 30, 2016				$ (3,819)						$ (3,819)
Treasury stock (in shares) at Sep. 30, 2016				(169,649)						(177,631)