Evercore Inc. Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
	Jul. 27, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Temporary Equity [Line Items]
Dividends Declared Per Share of Class A Common Stock (in dollars per share)		$ 0.68	$ 0.58	$ 1.29	$ 1.16
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)		$ 0.68	$ 0.58	$ 1.29	$ 1.16
Declared and Paid Dividends, Cash		$ 27,534	$ 23,176	$ 52,928	$ 46,762
Treasury Stock, Shares, Acquired (in shares)		1,368		3,308
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)		$ 138.86		$ 128.40
Increase in Treasury Stock		$ 189,952		$ 424,806
LP Units Exchanged By Employees (in units)		21		141
Increase in Common Stock				$ 1
Adjustments to Additional Paid-In-Capital		$ 1,033		6,746
Accumulated Unrealized Gain (Loss) on Securities and Investments		(4,861)		(4,861)
Foreign Currency Translation Adjustment Gain (Loss), Net		$ (2,366)		$ (2,366)
Share Repurchase Program [Member]
Temporary Equity [Line Items]
Treasury Stock, Shares, Acquired (in shares)		1,351		2,374
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)		$ 138.85		$ 132.88
Net Settlement of Share Based Awards [Member]
Temporary Equity [Line Items]
Treasury Stock, Shares, Acquired (in shares)		17		934
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)		$ 139.24		$ 117.02
Dividends Accrued [Member]
Temporary Equity [Line Items]
Accrued Deferred Cash Dividends		$ 3,685	3,387	$ 7,096	6,918
Dividend Paid [Member]
Temporary Equity [Line Items]
Accrued Deferred Cash Dividends		$ 191	$ 197	$ 12,211	$ 10,767
Subsequent Event [Member]
Temporary Equity [Line Items]
Dividends Declared Per Share of Class A Common Stock (in dollars per share)	$ 0.68