Consolidated Statements of Changes in Equity - USD ($)	Common Stock Class A	Common Stock Class C	Common Stock Class D	Treasury Stock	Additional Paid-in Capital	Capital Units Class A-1	Capital Units Class A-2	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, 2013						$ 19,648,000	$ 256,340,000	$ (74,027,000)	$ 1,327,000	$ 203,288,000					$ 203,288,000
Balance (in shares) at Dec. 31, 2013						1,964,826	99,459,345
Balance for Redeemable Interest at Dec. 31, 2013						$ 250,000,000
Increase (decrease) in stockholder's/members' equity
Share based compensation							$ 15,953,000			15,953,000					15,953,000
Share based compensation (in shares)							1,992,556
Temasek transaction described in Note 13						44,433,000	$ 17,707,000	(62,140,000)		(44,433,000)					(44,433,000)
Repurchase of interests							$ (2,295,000)	(4,621,000)		(6,916,000)					(6,916,000)
Repurchase of interests (in shares)							(1,596,235)
Dividends								(140,652,000)		(140,652,000)					(140,652,000)
Net income								190,057,000		190,057,000					190,057,000
Foreign exchange translation adjustment, net of taxes									(5,032,000)	(5,032,000)					(5,032,000)
Balance at Dec. 31, 2014						$ 19,648,000	$ 287,705,000	(91,383,000)	(3,705,000)	212,265,000					212,265,000
Balance (in shares) at Dec. 31, 2014						1,964,826	99,855,666
Balance for Redeemable Interest at Dec. 31, 2014						$ 294,433,000
Increase (decrease) in stockholder's/members' equity
Share based compensation							$ 438,000			438,000					438,000
Share based compensation (in shares)							6,418
Repurchase of interests							$ (97,000)			(97,000)					(97,000)
Repurchase of interests (in shares)							(13,495)
Dividends								(130,000,000)		(130,000,000)					(130,000,000)
Net income								83,147,000		83,147,000					83,147,000
Foreign exchange translation adjustment, net of taxes									(4,633,000)	(4,633,000)					(4,633,000)
Reorganization of equity structure			$ 1,000		$ 63,261,000	$ (19,648,000)	$ (288,046,000)	138,236,000	8,338,000	(97,858,000)	$ 392,291,000				294,433,000
Reorganization of equity structure (in shares)	18,763,664	36,746,041	79,610,490
Reorganization of equity structure (in shares)						(1,964,826)	(99,848,589)
Reorganization of equity structure - Redeemable Interest						$ (294,433,000)
Balance at Apr. 15, 2015			$ 1,000		63,261,000					63,262,000	392,291,000				455,553,000
Balance (in shares) at Apr. 15, 2015	18,763,664	36,746,041	79,610,490
Balance at Dec. 31, 2014						$ 19,648,000	$ 287,705,000	(91,383,000)	(3,705,000)	212,265,000					212,265,000
Balance (in shares) at Dec. 31, 2014						1,964,826	99,855,666
Balance for Redeemable Interest at Dec. 31, 2014						$ 294,433,000
Increase (decrease) in stockholder's/members' equity
Net income															197,490,000
Foreign exchange translation adjustment, net of taxes															(4,255,000)
Balance at Dec. 31, 2015															130,708,000
Balance at Dec. 31, 2015			$ 1,000		130,902,000			3,525,000	99,000	130,708,000	427,162,000				557,870,000
Balance (in shares) at Dec. 31, 2015	38,379,858	20,976,598	79,610,490									38,210,209	20,976,598	79,610,490
Treasury stock at Dec. 31, 2015				$ (3,819,000)											$ (3,819,000)
Treasury stock (in shares) at Dec. 31, 2015				(169,649)											(169,649)
Balance at Apr. 15, 2015			$ 1,000		63,261,000					63,262,000	392,291,000				$ 455,553,000
Balance (in shares) at Apr. 15, 2015	18,763,664	36,746,041	79,610,490
Increase (decrease) in stockholder's/members' equity
Share based compensation	$ 576,693				19,278,000					19,278,000					19,278,000
Repurchase of interests					(277,153,000)					(277,153,000)					(277,153,000)
Repurchase of interests (in shares)	(3,470,724)	(12,214,224)
Dividends								(17,362,000)		(17,362,000)					(17,362,000)
Net income								20,887,000		20,887,000	93,456,000				114,343,000
Foreign exchange translation adjustment, net of taxes									99,000	99,000	279,000				378,000
Issuance of Common Stock, net of offering costs					327,366,000					327,366,000					327,366,000
Issuance of Common Stock, net of offering costs (in shares)	19,012,112
Issuance of Common Stock in connection with secondary offering, net of offering costs					7,782,000					7,782,000					7,782,000
Issuance of Common Stock in connection with secondary offering, net of offering costs (in shares)	3,498,113
Repurchase of units and corresponding number of common stock in connection with secondary offering					(8,805,000)					(8,805,000)					(8,805,000)
Repurchase of units and corresponding number of common stock in connection with secondary offering (in shares)		(3,498,113)
Share based compensation vested upon IPO					44,908,000					44,908,000					44,908,000
Adjustments for changes in proportionate ownership in Virtu Financial					(22,513,000)					(22,513,000)	22,513,000
Issuance of tax receivable agreements in connection with secondary offering					23,041,000					23,041,000					23,041,000
Repurchase of common stock					(1,368,000)					(1,368,000)					(1,368,000)
Repurchase of common stock (in shares)		(57,106)
Treasury stock purchases				$ (3,819,000)						(3,819,000)					(3,819,000)
Treasury stock purchases (in shares)				(169,649)
Distribution from Virtu Financial to non-controlling interest											(81,377,000)				(81,377,000)
Issuance of tax receivable agreements in connection with secondary offering					1,187,000					1,187,000					1,187,000
Balance at Dec. 31, 2015															130,708,000
Balance at Dec. 31, 2015			$ 1,000		130,902,000			3,525,000	99,000	130,708,000	427,162,000				557,870,000
Balance (in shares) at Dec. 31, 2015	38,379,858	20,976,598	79,610,490									38,210,209	20,976,598	79,610,490
Treasury stock at Dec. 31, 2015				$ (3,819,000)											$ (3,819,000)
Treasury stock (in shares) at Dec. 31, 2015				(169,649)											(169,649)
Increase (decrease) in stockholder's/members' equity
Share based compensation					24,893,000					24,893,000					$ 24,893,000
Share based compensation (in shares)	953,054	(58,070)
Dividends								(37,759,000)		(37,759,000)					(37,759,000)
Net income								32,980,000		32,980,000	125,360,000				158,340,000
Foreign exchange translation adjustment, net of taxes									(351,000)	(351,000)	(814,000)				(1,165,000)
Issuance of Common Stock in connection with secondary offering, net of offering costs					16,677,000					16,677,000					16,677,000
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					(17,383,000)					(17,383,000)					(17,383,000)
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					(545,000)					(545,000)					(545,000)
Repurchase of common stock					(98,000)					(98,000)					(98,000)
Repurchase of common stock (in shares)		(4,153)
Treasury stock purchases				$ (4,539,000)						(4,539,000)					(4,539,000)
Treasury stock purchases (in shares)				(283,417)
Distribution from Virtu Financial to non-controlling interest											(162,969,000)				(162,969,000)
Balance at Dec. 31, 2016															145,673,000
Balance at Dec. 31, 2016			$ 1,000		$ 155,536,000			$ (1,254,000)	$ (252,000)	$ 145,673,000	$ 388,739,000				534,412,000
Balance (in shares) at Dec. 31, 2016	40,436,580	19,810,707	79,610,490									39,983,514	19,810,707	79,610,490
Treasury stock at Dec. 31, 2016				$ (8,358,000)											$ (8,358,000)
Treasury stock (in shares) at Dec. 31, 2016				(453,066)											(453,066)