Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Class A [Member]	Common Stock [Member] Class A [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings (Deficit) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2015	$ 707,216		$ 552	$ 1,210,742	$ (34,539)	$ (27,791)	$ (644,412)	$ 202,664
Beginning Balance, Shares at Dec. 31, 2015			55,249,559				(15,626,288)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	41,271					29,405		11,866
Other Comprehensive Income (Loss)	(9,355)				(7,507)			(1,848)
Treasury Stock Purchases, net	(159,779)						$ (159,779)
Treasury Stock Purchases, net, Shares							(3,357,057)
Evercore LP Units Purchased or Converted into Class A Common Stock	0		$ 2	6,190				(6,192)
Evercore LP Units Purchased or Converted into Class A Common Stock, Shares			232,217
Equity-based Compensation Awards	111,208		$ 23	58,687				52,498
Equity-based Compensation Awards, Shares			2,271,201
Dividends	(24,395)			3,870		(28,265)
Noncontrolling Interest (Note 12)	(23,071)			(1,257)				(21,814)
Ending Balance at Jun. 30, 2016	643,095		$ 577	1,278,232	(42,046)	(26,651)	$ (804,191)	237,174
Ending Balance, Shares at Jun. 30, 2016			57,752,977				(18,983,345)
Beginning Balance at Dec. 31, 2016	783,331		$ 582	1,368,122	(50,096)	20,343	$ (811,653)	256,033
Beginning Balance, Shares at Dec. 31, 2016		39,190,856	58,292,567				(19,101,711)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	120,524					98,955		21,569
Other Comprehensive Income (Loss)	1,538				1,234			304
Treasury Stock Purchases, net	(231,065)						$ (231,065)
Treasury Stock Purchases, net, Shares							(3,092,175)
Evercore LP Units Purchased or Converted into Class A Common Stock	(1,808)		$ 7	24,545				(26,360)
Evercore LP Units Purchased or Converted into Class A Common Stock, Shares			654,832
Equity-based Compensation Awards	75,935		$ 25	79,029				(3,119)
Equity-based Compensation Awards, Shares			2,489,349
Dividends	(34,223)			0		(34,223)
Noncontrolling Interest (Note 12)	(15,128)			(7,054)				(8,074)
Ending Balance at Jun. 30, 2017	$ 699,104		$ 614	$ 1,464,642	$ (48,862)	$ 85,075	$ (1,042,718)	$ 240,353
Ending Balance, Shares at Jun. 30, 2017		39,242,862	61,436,748				(22,193,886)