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 2016-01 [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		38,880						31,175			7,705
Other Comprehensive Income		(12,241)					(10,332)				(1,909)
Treasury Stock Purchases		(141,014)								$ (141,014)
Treasury Stock Purchases, Shares (in shares)										(1,841,880)
Evercore LP Units Exchanged for Class A Common Stock		8,414			$ 8	41,577					(33,171)
Evercore LP Units Exchanged for Class A Common Stock, Shares					791,695
Equity-based Compensation Awards		58,744			$ 24	55,409					3,311
Equity-based Compensation Awards, Shares					2,409,586
Dividends		(27,117)						(27,117)
Noncontrolling Interest (Note 13)		(12,741)				(1,565)					(11,176)
Ending Balance at Mar. 31, 2020		1,037,865			$ 719	2,111,945	(37,928)	561,017		$ (1,819,182)	221,294
Ending Balance, Shares at Mar. 31, 2020					71,899,956					(31,364,545)
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		165,551						144,352			21,199
Other Comprehensive Income		1,595					1,361				234
Treasury Stock Purchases		$ (234,854)								$ (234,854)
Treasury Stock Purchases, Shares (in shares)		(1,940,000)								(1,940,430)
Evercore LP Units Exchanged for Class A Common Stock		$ 1,498			$ 1	7,211					(5,714)
Evercore LP Units Exchanged for Class A Common Stock, Shares					120,143
Equity-based Compensation Awards		55,018			$ 22	51,900					3,096
Equity-based Compensation Awards, Shares					2,206,534
Dividends		(28,805)						(28,805)
Noncontrolling Interest (Note 13)		(14,980)				(2,826)					(12,154)
Ending Balance at Mar. 31, 2021		$ 1,434,397			$ 745	$ 2,322,421	$ (8,397)	$ 914,120		$ (2,059,581)	$ 265,089
Ending Balance, Shares at Mar. 31, 2021				41,136,472	74,521,960					(33,385,488)

[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.