Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands		Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Class A [Member]	Common Stock [Member] Class A [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2019		$ 1,126,250			$ 687	$ 2,016,524	$ (27,596)	$ 558,269		$ (1,678,168)	$ 256,534
Beginning Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019	[1]		$ (1,310)						$ (1,310)
Beginning Balance, Shares at Dec. 31, 2019					68,698,675					(29,522,665)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		106,108						87,587			18,521
Other Comprehensive Income		(11,338)					(9,571)				(1,767)
Treasury Stock Purchases		(142,560)								$ (142,560)
Treasury Stock Purchases, Shares (in shares)										(1,870,815)
Evercore LP Units Exchanged for Class A Common Stock		8,596			$ 8	42,342					(33,754)
Evercore LP Units Exchanged for Class A Common Stock, Shares					806,355
Equity-based Compensation Awards		115,256			$ 25	109,536					5,695
Equity-based Compensation Awards, Shares					2,472,723
Dividends		(53,680)						(53,680)
Noncontrolling Interest (Note 13)		(15,172)				(1,565)					(13,607)
Ending Balance at Jun. 30, 2020		1,132,150			$ 720	2,166,837	(37,167)	590,866		$ (1,820,728)	231,622
Ending Balance, Shares at Jun. 30, 2020					71,977,753					(31,393,480)
Beginning Balance at Mar. 31, 2020		1,037,865			$ 719	2,111,945	(37,928)	561,017		$ (1,819,182)	221,294
Beginning Balance, Shares at Mar. 31, 2020					71,899,956					(31,364,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		67,228						56,412			10,816
Other Comprehensive Income		903					761				142
Treasury Stock Purchases		(1,546)								$ (1,546)
Treasury Stock Purchases, Shares (in shares)										(28,935)
Evercore LP Units Exchanged for Class A Common Stock		182			$ 0	765					(583)
Evercore LP Units Exchanged for Class A Common Stock, Shares					14,660
Equity-based Compensation Awards		56,512			$ 1	54,127					2,384
Equity-based Compensation Awards, Shares					63,137
Dividends		(26,563)						(26,563)
Noncontrolling Interest (Note 13)		(2,431)				0					(2,431)
Ending Balance at Jun. 30, 2020		1,132,150			$ 720	2,166,837	(37,167)	590,866		$ (1,820,728)	231,622
Ending Balance, Shares at Jun. 30, 2020					71,977,753					(31,393,480)
Beginning Balance at Dec. 31, 2020		1,489,374			$ 722	2,266,136	(9,758)	798,573		$ (1,824,727)	258,428
Beginning Balance, Shares at Dec. 31, 2020				40,750,225	72,195,283					(31,445,058)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		329,480						284,711			44,769
Other Comprehensive Income		2,934					2,531				403
Treasury Stock Purchases		$ (424,806)								$ (424,806)
Treasury Stock Purchases, Shares (in shares)		(3,308,000)								(3,308,414)
Evercore LP Units Exchanged for Class A Common Stock		$ 2,020			$ 1	8,766					(6,747)
Evercore LP Units Exchanged for Class A Common Stock, Shares					140,693
Equity-based Compensation Awards		117,779			$ 23	111,649					6,107
Equity-based Compensation Awards, Shares					2,252,207
Dividends		(60,024)						(60,024)
Noncontrolling Interest (Note 13)		(31,490)				(2,826)					(28,664)
Ending Balance at Jun. 30, 2021		1,425,267			$ 746	2,383,725	(7,227)	1,023,260		$ (2,249,533)	274,296
Ending Balance, Shares at Jun. 30, 2021				39,834,711	74,588,183					(34,753,472)
Beginning Balance at Mar. 31, 2021		1,434,397			$ 745	2,322,421	(8,397)	914,120		$ (2,059,581)	265,089
Beginning Balance, Shares at Mar. 31, 2021					74,521,960					(33,385,488)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		163,929						140,359			23,570
Other Comprehensive Income		1,339					1,170				169
Treasury Stock Purchases		$ (189,952)								$ (189,952)
Treasury Stock Purchases, Shares (in shares)		(1,368,000)								(1,367,984)
Evercore LP Units Exchanged for Class A Common Stock		$ 522			$ 0	1,555					(1,033)
Evercore LP Units Exchanged for Class A Common Stock, Shares					20,550
Equity-based Compensation Awards		62,761			$ 1	59,749					3,011
Equity-based Compensation Awards, Shares					45,673
Dividends		(31,219)						(31,219)
Noncontrolling Interest (Note 13)		(16,510)				0					(16,510)
Ending Balance at Jun. 30, 2021		$ 1,425,267			$ 746	$ 2,383,725	$ (7,227)	$ 1,023,260		$ (2,249,533)	$ 274,296
Ending Balance, Shares at Jun. 30, 2021				39,834,711	74,588,183					(34,753,472)

[1] The cumulative adjustment relates to the adoption of Accounting Standards Update ("ASU") No. 2016-13, "Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13") on January 1, 2020, for which the Company recorded an adjustment to Retained Earnings to reflect an increase in the Company's Allowance for Doubtful Accounts as a result of the use of the current expected credit loss model.