Condensed Consolidated Statements of Changes in Equity - 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 [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2018	$ 1,007,939		$ 659	$ 1,818,100	$ (30,434)	$ 364,882	$ (1,395,087)	$ 249,819
Beginning Balance, Shares at Dec. 31, 2018			65,872,014				(26,123,438)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	227,961					192,252		35,709
Other Comprehensive Income	(5,121)				(4,355)			(766)
Treasury Stock Purchases	(253,864)						$ (253,864)
Treasury Stock Purchases, Shares							(3,014,400)
Evercore LP Units Exchanged for Class A Common Stock	18,644		$ 3	30,828				(12,187)
Evercore LP Units Exchanged for Class A Common Stock, Shares			281,685
Equity-based Compensation Awards	179,866		$ 24	160,733				19,109
Equity-based Compensation Awards, Shares			2,420,162
Dividends	(77,576)					(77,576)
Noncontrolling Interest (Note 14)	(94,561)			(41,482)				(53,079)
Ending Balance at Sep. 30, 2019	1,003,288		$ 686	1,968,179	(34,789)	479,558	$ (1,648,951)	238,605
Ending Balance, Shares at Sep. 30, 2019			68,573,861				(29,137,838)
Beginning Balance at Jun. 30, 2019	974,835		$ 685	1,916,503	(31,988)	463,002	$ (1,609,916)	236,549
Beginning Balance, Shares at Jun. 30, 2019			68,508,501				(28,643,895)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	52,504					43,278		9,226
Other Comprehensive Income	(3,303)				(2,801)			(502)
Treasury Stock Purchases	(39,035)						$ (39,035)
Treasury Stock Purchases, Shares							(493,943)
Evercore LP Units Exchanged for Class A Common Stock	492		$ 1	1,501				(1,010)
Evercore LP Units Exchanged for Class A Common Stock, Shares			24,789
Equity-based Compensation Awards	57,168		$ 0	50,175				6,993
Equity-based Compensation Awards, Shares			40,571
Dividends	(26,722)					(26,722)
Noncontrolling Interest (Note 14)	(12,651)			0				(12,651)
Ending Balance at Sep. 30, 2019	1,003,288		$ 686	1,968,179	(34,789)	479,558	$ (1,648,951)	238,605
Ending Balance, Shares at Sep. 30, 2019			68,573,861				(29,137,838)
Beginning Balance at Dec. 31, 2019	1,126,250		$ 687	2,016,524	(27,596)	558,269	$ (1,678,168)	256,534
Beginning Balance, Shares at Dec. 31, 2019		39,176,010	68,698,675				(29,522,665)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	157,228					130,197		27,031
Other Comprehensive Income	(4,588)				(3,807)			(781)
Treasury Stock Purchases	$ (143,487)						$ (143,487)
Treasury Stock Purchases, Shares	(1,887,000)						(1,886,691)
Evercore LP Units Exchanged for Class A Common Stock	$ 8,599		$ 8	42,353				(33,762)
Evercore LP Units Exchanged for Class A Common Stock, Shares			806,555
Equity-based Compensation Awards	169,361		$ 25	159,410				9,926
Equity-based Compensation Awards, Shares			2,509,498
Dividends	(80,614)					(80,614)
Noncontrolling Interest (Note 14)	(24,425)			(1,565)				(22,860)
Ending Balance at Sep. 30, 2020	1,207,014		$ 720	2,216,722	(31,403)	606,542	$ (1,821,655)	236,088
Ending Balance, Shares at Sep. 30, 2020		40,605,372	72,014,728				(31,409,356)
Beginning Balance at Jun. 30, 2020	1,132,150		$ 720	2,166,837	(37,167)	590,866	$ (1,820,728)	231,622
Beginning Balance, Shares at Jun. 30, 2020			71,977,753				(31,393,480)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	51,120					42,610		8,510
Other Comprehensive Income	6,750				5,764			986
Treasury Stock Purchases	(927)						$ (927)
Treasury Stock Purchases, Shares							(15,876)
Evercore LP Units Exchanged for Class A Common Stock	3		$ 0	11				(8)
Evercore LP Units Exchanged for Class A Common Stock, Shares			200
Equity-based Compensation Awards	54,105		$ 0	49,874				4,231
Equity-based Compensation Awards, Shares			36,775
Dividends	(26,934)					(26,934)
Noncontrolling Interest (Note 14)	(9,253)			0				(9,253)
Ending Balance at Sep. 30, 2020	$ 1,207,014		$ 720	$ 2,216,722	$ (31,403)	$ 606,542	$ (1,821,655)	$ 236,088
Ending Balance, Shares at Sep. 30, 2020		40,605,372	72,014,728				(31,409,356)