Condensed Consolidated Statements of Changes in Equity - 3 months ended Mar. 31, 2017 - 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	Class A	Class C	Class D	Total
Balance at Dec. 31, 2016			$ 1	$ (8,358)	$ 155,536	$ (1,254)	$ (252)	$ 145,673	$ 388,739				$ 534,412
Balance (in shares) at Dec. 31, 2016	40,436,580	19,810,707	79,610,490	(453,066)						39,983,514	19,810,707	79,610,490
Increase (decrease) in stockholder's/members' equity
Share based compensation					4,460			4,460					4,460
Share based compensation (in shares)		(12,721)
Treasury stock purchases					(441)			(441)					(441)
Treasury stock purchases (in shares)		(32,789)
Net income						4,580		4,580	16,494				21,074
Foreign exchange translation adjustment							235	235	550				785
Distribution from Virtu Financial to non-controlling interest									(21,011)				(21,011)
Dividends						(10,114)		(10,114)					(10,114)
Issuance of common stock in connection with employee exchanges (in shares)	683,762
Repurchase of Virtu Financial Units and corresponding number of Class C common stock in connection with employee exchanges (in shares)		(683,762)
Issuance of tax receivable agreements in connection with employee exchange					830			830					830
Balance at Mar. 31, 2017			$ 1	$ (8,358)	$ 160,385	$ (6,788)	$ (17)	$ 145,223	$ 384,772				$ 529,995
Balance (in shares) at Mar. 31, 2017	41,120,342	19,081,435	79,610,490	(453,066)						40,667,276	19,081,435	79,610,490