CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, except Share data	Total	Common Class A [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings (Deficit) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance, Value at Dec. 31, 2010	$ 367,241	$ 215	$ 400,719	$ (4,193)	$ (61,504)	$ (34,538)	$ 66,542
Beginning Balance, Shares at Dec. 31, 2010		21,497,691				(1,514,045)
Net Income	13,869	0	0	0	7,608	0	6,261
Other Comprehensive Income	(8,577)	0	0	(6,787)	0	0	(1,790)
Treasury Stock Purchases, Value	(35,094)	0				(35,094)	0
Treasury Stock Purchases, Shares						(1,221,248)
Proceeds from Equity Offering, Net of Direct Expenses, Value	167,934	54	167,880	0	0	0	0
Proceeds from Equity Offering, Net of Direct Expenses, Shares		5,364,991				0
Evercore LP Units Purchased or Converted into Class A Common Stock, Value	(87,133)	3	(75,146)	0	0	0	(11,990)
Evercore LP Units Purchased or Converted into Class A Common Stock, Shares		352,487				0
Stock-based Compensation Awards, Value	67,316	29	51,479				15,808
Stock-based Compensation Awards, Shares		2,917,832
Shares Issued as Consideration for Acquisitions and Investments, Value	636					636	0
Shares Issued as Consideration for Acquisitions and Investments, Shares						27,867
Dividends and Equivalents	(13,591)	0	1,866	0	(15,457)	0	0
Noncontrolling Interest (Note 13)	(12,063)	0	3,587	0	0	0	(15,650)
Ending Balance, Value at Sep. 30, 2011	460,538	301	550,385	(10,980)	(69,353)	(68,996)	59,181
Ending Balance, Shares at Sep. 30, 2011		30,133,001				(2,707,426)
Beginning Balance, Value at Dec. 31, 2011	465,826	310	575,122	(12,058)	(76,703)	(79,007)	58,162
Beginning Balance, Shares at Dec. 31, 2011		31,014,265				(3,072,958)
Net Income	14,494	0	0	0	9,867	0	4,627
Other Comprehensive Income	3,487	0	0	2,454	0	0	1,033
Treasury Stock Purchases, Value	(65,018)	0			0	(65,018)
Treasury Stock Purchases, Shares						(2,553,462)
Evercore LP Units Purchased or Converted into Class A Common Stock, Value	2,468	17	9,715	0	0	0	(7,264)
Evercore LP Units Purchased or Converted into Class A Common Stock, Shares		1,677,513				0
Stock-based Compensation Awards, Value	74,312	18	58,275	0	0	0	16,019
Stock-based Compensation Awards, Shares		1,756,355				0
Shares Issued as Consideration for Acquisitions and Investments, Value	5,565		(76)	0	0	5,641	0
Shares Issued as Consideration for Acquisitions and Investments, Shares						219,948
Dividends and Equivalents	(17,703)	0	3,598	0	(21,301)	0	0
Noncontrolling Interest (Note 13)	(13,398)	0	(1,080)	0	0	0	(12,318)
Ending Balance, Value at Sep. 30, 2012	$ 470,033	$ 345	$ 645,554	$ (9,604)	$ (88,137)	$ (138,384)	$ 60,259
Ending Balance, Shares at Sep. 30, 2012		34,448,133				(5,406,472)