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]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of Accounting Change(1)	[1]					$ 2,229	$ (2,229)
Beginning Balance at Dec. 31, 2017		$ 796,368		$ 621	$ 1,600,699	(31,411)	79,461	$ (1,105,406)	$ 252,404
Beginning Balance, Shares at Dec. 31, 2017				62,119,904				(23,017,750)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		191,396					164,474		26,922
Other Comprehensive Income (Loss)		(2,723)				(2,304)			(419)
Treasury Stock Purchases		(160,521)						$ (160,521)
Treasury Stock Purchases, Shares								(1,661,242)
Evercore LP Units Converted into Class A Common Stock (in Units)				1,054,707
Evercore LP Units Converted Into Class Common Stock, Value		15,414		$ 11	56,968				(41,565)
Equity-based Compensation Awards		99,480		$ 24	89,459				9,997
Equity-based Compensation Awards, Shares				2,448,743
Dividends		(42,891)					(42,891)
Noncontrolling Interest (Note 14)		(45,523)			(25,458)				(20,065)
Ending Balance at Jun. 30, 2018		851,000		$ 656	1,721,668	(31,486)	198,815	$ (1,265,927)	227,274
Ending Balance, Shares at Jun. 30, 2018				65,623,354				(24,678,992)
Beginning Balance at Mar. 31, 2018		774,333		$ 654	1,666,292	(26,049)	153,605	$ (1,244,642)	224,473
Beginning Balance, Shares at Mar. 31, 2018				65,391,119				(24,439,399)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		81,660					68,931		12,729
Other Comprehensive Income (Loss)		(6,377)				(5,437)			(940)
Treasury Stock Purchases		(21,285)						$ (21,285)
Treasury Stock Purchases, Shares								(239,593)
Evercore LP Units Converted into Class A Common Stock (in Units)				194,592
Evercore LP Units Converted Into Class Common Stock, Value		1,826		$ 2	9,053				(7,229)
Equity-based Compensation Awards		51,429		$ 0	46,554				4,875
Equity-based Compensation Awards, Shares				37,643
Dividends		(23,721)					(23,721)
Noncontrolling Interest (Note 14)		(6,865)			(231)				(6,634)
Ending Balance at Jun. 30, 2018		851,000		$ 656	1,721,668	(31,486)	198,815	$ (1,265,927)	227,274
Ending Balance, Shares at Jun. 30, 2018				65,623,354				(24,678,992)
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			39,748,576	65,872,014				(26,123,438)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		175,457					148,974		26,483
Other Comprehensive Income (Loss)		(1,818)				(1,554)			(264)
Treasury Stock Purchases		$ (214,829)						$ (214,829)
Treasury Stock Purchases, Shares		(2,520,000)						(2,520,457)
Evercore LP Units Converted into Class A Common Stock (in Units)				256,896
Evercore LP Units Converted Into Class Common Stock, Value		$ 18,152		$ 2	29,327				(11,177)
Equity-based Compensation Awards		122,698		$ 24	110,558				12,116
Equity-based Compensation Awards, Shares				2,379,591
Dividends		(50,854)					(50,854)
Noncontrolling Interest (Note 14)		(81,910)			(41,482)				(40,428)
Ending Balance at Jun. 30, 2019		974,835		$ 685	1,916,503	(31,988)	463,002	$ (1,609,916)	236,549
Ending Balance, Shares at Jun. 30, 2019			39,864,606	68,508,501				(28,643,895)
Beginning Balance at Mar. 31, 2019		1,005,958		$ 684	1,890,069	(28,507)	408,281	$ (1,502,780)	238,211
Beginning Balance, Shares at Mar. 31, 2019				68,441,333				(27,372,948)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		97,257					81,742		15,515
Other Comprehensive Income (Loss)		(4,070)				(3,481)			(589)
Treasury Stock Purchases		$ (107,136)						$ (107,136)
Treasury Stock Purchases, Shares		(1,271,000)						(1,270,947)
Evercore LP Units Converted into Class A Common Stock (in Units)				19,529
Evercore LP Units Converted Into Class Common Stock, Value		$ 12,281		$ 0	13,035				(754)
Equity-based Compensation Awards		61,492		$ 1	54,881				6,610
Equity-based Compensation Awards, Shares				47,639
Dividends		(27,021)					(27,021)
Noncontrolling Interest (Note 14)		(63,926)			(41,482)				(22,444)
Ending Balance at Jun. 30, 2019		$ 974,835		$ 685	$ 1,916,503	$ (31,988)	$ 463,002	$ (1,609,916)	$ 236,549
Ending Balance, Shares at Jun. 30, 2019			39,864,606	68,508,501				(28,643,895)

[1] The cumulative adjustment relates to the adoption of ASU No. 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities" on January 1, 2018, for which the Company recorded an adjustment to Retained Earnings to reflect cumulative unrealized losses, net of tax, on available-for-sale equity securities previously recorded in Accumulated Other Comprehensive Income (Loss).