Noncontrolling Interest - Changes In Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance				$ 256,534					$ 256,534
Comprehensive Income:
Net Income Attributable to Noncontrolling Interest	$ 35,075	$ 8,510	$ 10,816	7,705	$ 20,516	$ 9,226	$ 15,515	$ 10,968	62,106	$ 56,225	$ 65,611
Total Comprehensive Income									69,472	56,738	65,408
Evercore LP Units Exchanged for Class A Shares									9,272	17,825	23,968
Total Other Items									(46,078)	(104,253)	(66,717)
Ending balance	258,428				256,534				258,428	256,534
Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance				$ 256,534				$ 249,819	256,534	249,819	252,404
Comprehensive Income:
Net Income Attributable to Noncontrolling Interest									62,106	56,225	65,611
Other Comprehensive Income (Loss)									7,366	513	(203)
Total Comprehensive Income									69,472	56,738	65,408
Evercore LP Units Exchanged for Class A Shares									(37,683)	(15,142)	(46,594)
Amortization and Vesting of LP Units									14,618	27,890	19,860
Distributions to Noncontrolling Interests									(44,915)	(54,706)	(41,413)
Issuance of Noncontrolling Interest									540	3,368	1,165
Purchase of Noncontrolling Interest									(138)	(11,433)	(1,011)
Total Other Items									(44,513)	(62,771)	(41,259)
Ending balance	$ 258,428				$ 256,534				$ 258,428	$ 256,534	$ 249,819