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]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjustment [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, 2017		$ 796,368			$ 621	$ 1,600,699	$ (31,411)		$ 79,461		$ (1,105,406)	$ 252,404
Beginning Balance (Accounting Standards Update 2016-01 [Member]) at Dec. 31, 2017	[1]		$ 0					$ 2,229		$ (2,229)
Beginning Balance, Shares at Dec. 31, 2017					62,119,904						(23,017,750)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		442,851							377,240			65,611
Other Comprehensive Income		(1,455)					(1,252)					(203)
Treasury Stock Purchases		(289,681)									$ (289,681)
Treasury Stock Purchases, Shares (in shares)											(3,105,688)
Evercore LP Units Exchanged for Class A Common Stock		23,968			$ 12	70,550						(46,594)
Evercore LP Units Exchanged for Class A Common Stock, Shares					1,181,669
Equity-based Compensation Awards		192,195			$ 26	172,309						19,860
Equity-based Compensation Awards, Shares					2,570,441
Dividends		(89,590)							(89,590)
Noncontrolling Interest (Note 17)		(66,717)				(25,458)						(41,259)
Ending Balance at Dec. 31, 2018		1,007,939			$ 659	1,818,100	(30,434)		364,882		$ (1,395,087)	249,819
Ending Balance, Shares at Dec. 31, 2018					65,872,014						(26,123,438)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		353,661							297,436			56,225
Other Comprehensive Income		3,351					2,838					513
Treasury Stock Purchases		$ (283,081)									$ (283,081)
Treasury Stock Purchases, Shares (in shares)		(3,399,000)									(3,399,227)
Evercore LP Units Exchanged for Class A Common Stock		$ 17,825			$ 3	32,964						(15,142)
Evercore LP Units Exchanged for Class A Common Stock, Shares					353,383
Equity-based Compensation Awards		234,857			$ 25	206,942						27,890
Equity-based Compensation Awards, Shares					2,473,278
Dividends		(104,049)							(104,049)
Noncontrolling Interest (Note 17)		(104,253)				(41,482)						(62,771)
Ending Balance at Dec. 31, 2019		1,126,250			$ 687	2,016,524	(27,596)		558,269		$ (1,678,168)	256,534
Ending Balance, Shares at Dec. 31, 2019				39,176,010	68,698,675						(29,522,665)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		412,680							350,574			62,106
Other Comprehensive Income		25,204					17,838					7,366
Treasury Stock Purchases		$ (146,559)									$ (146,559)
Treasury Stock Purchases, Shares (in shares)		(1,922,000)									(1,922,393)
Evercore LP Units Exchanged for Class A Common Stock		$ 9,272			$ 9	46,946						(37,683)
Evercore LP Units Exchanged for Class A Common Stock, Shares					898,585
Equity-based Compensation Awards		218,875			$ 26	204,231						14,618
Equity-based Compensation Awards, Shares					2,598,023
Dividends		(108,960)							(108,960)
Noncontrolling Interest (Note 17)		(46,078)				(1,565)						(44,513)
Ending Balance at Dec. 31, 2020		$ 1,489,374			$ 722	$ 2,266,136	$ (9,758)		$ 798,573		$ (1,824,727)	$ 258,428
Ending Balance, Shares at Dec. 31, 2020				40,750,225	72,195,283						(31,445,058)

[1] (1) The cumulative adjustment relates to the adoption of Accounting Standards Update ("ASU") No. 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01") 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).