Condensed Consolidated Statements of Changes in Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Additional Paid-In Capital [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Retained Earnings (Deficit) [Member] USD ($)	Treasury Stock [Member] USD ($)	Noncontrolling Interest [Member] USD ($)	Class A [Member]	Class A [Member] Common Stock [Member] USD ($)
Beginning Balance, Value at Dec. 31, 2012	$ 490,749	$ 654,275	$ (9,086)	$ (77,079)	$ (139,954)	$ 62,243		$ 350
Beginning Balance, Shares at Dec. 31, 2012					(5,463,515)			(35,040,501)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	48,643			36,357		12,286
Other Comprehensive Income (Loss)	(1,374)		(1,112)			(262)
Treasury Stock Purchases	(85,073)				(85,073)
Treasury Stock Purchases, Shares					(2,230,613)
Evercore LP Units Converted into Class A Common Stock	(2,618)	11,928				(14,562)		16
Evercore LP Units Converted into Class A Common Stock, Shares								1,615,569
Equity-based Compensation Awards	92,671	77,034			65	15,545		27
Equity-based Compensation Awards, Shares					2,600			2,713,500
Stock Issued During Period, Value, Acquisitions	1,494	365			1,129
Stock Issued During Period, Shares, Acquisitions					39,341
Dividends and Equivalents	(21,214)	4,409		(25,623)
Noncontrolling Interest	(19,730)	(3,548)				(16,182)
Ending Balance, Value at Sep. 30, 2013	503,548	744,463	(10,198)	(66,345)	(223,833)	59,068		393
Ending Balance, Shares at Sep. 30, 2013					(7,652,187)			(39,369,570)
Beginning Balance, Value at Dec. 31, 2013	563,158	799,233	(10,784)	(59,896)	(226,380)	60,577		408
Beginning Balance, Shares at Dec. 31, 2013					(7,702,900)		(33,069,534)	(40,772,434)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	68,262			59,142		9,120
Other Comprehensive Income (Loss)	(3,400)		(2,709)			(691)
Treasury Stock Purchases	(135,137)				(135,137)
Treasury Stock Purchases, Shares					(2,550,357)
Evercore LP Units Converted into Class A Common Stock	4,330	12,067				(7,748)		11
Evercore LP Units Converted into Class A Common Stock, Shares								1,101,851
Equity-based Compensation Awards	110,026	109,780				205		41
Equity-based Compensation Awards, Shares								4,107,627
Stock Issued During Period, Value, Acquisitions	10,742	2,987			4,245	3,510
Stock Issued During Period, Shares, Acquisitions					131,243
Dividends and Equivalents	(27,911)	4,481		(32,392)
Noncontrolling Interest	13,350	(15,748)			3,856	25,242
Stock Issued During Period, Shares, Other					119,207
Ending Balance, Value at Sep. 30, 2014	$ 603,420	$ 912,800	$ (13,493)	$ (33,146)	$ (353,416)	$ 90,215		$ 460
Ending Balance, Shares at Sep. 30, 2014					(10,002,807)		(35,979,105)	(45,981,912)