Supplemental Financial Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Quarterly Financial Data [Line Items]
Net Revenues	$ 214,049	$ 153,029	$ 172,497	$ 102,798	$ 112,781	$ 163,181	$ 141,204	$ 107,098	$ 642,373	[1]	$ 524,264	[1]	$ 375,905	[1]
Total Expenses	171,811	138,784	151,302	114,941	113,790	149,739	129,589	95,334	576,838		488,452		339,045
Income (Loss) Before Income from Equity Method Investments and Income Taxes	42,238	14,245	21,195	(12,143)	(1,009)	13,442	11,615	11,764	65,535		35,812		36,860
Income from Equity Method Investments	1,333	415	719	2,385	255	195	69	400	4,852		919		(557)
Income (Loss) Before Income Taxes	43,571	14,660	21,914	(9,758)	(754)	13,637	11,684	12,164	70,387		36,731		36,303
Provision (Benefit) for Income Taxes	18,586	7,187	9,773	(4,638)	1,080	11,144	6,064	4,436	30,908		22,724		16,177
Net Income (Loss) from Continuing Operations	24,985	7,473	12,141	(5,120)	(1,834)	2,493	5,620	7,728	39,479		14,007		20,126
Net Income (Loss) from Discontinued Operations					(1,504)	(1,200)	(361)	(411)			(966)		(517)
Net Income	24,985	7,473	12,141	(5,120)	(3,338)	1,293	5,259	7,317	39,479		10,531		17,805
Net Income (Loss) Attributable to Noncontrolling Interest	5,963	2,172	4,207	(1,752)	(2,682)	(466)	2,998	3,729	10,590		3,579		8,851
Net Income (Loss) Attributable to Evercore Partners Inc.	$ 19,022	$ 5,301	$ 7,934	$ (3,368)	$ (656)	$ 1,759	$ 2,261	$ 3,588	$ 28,889		$ 6,952		$ 8,954
Basic Net Income (Loss) Per Share, From Continuing Operations	$ 0.64	$ 0.18	$ 0.27	$ (0.12)		$ 0.06	$ 0.09	$ 0.16	$ 0.98		$ 0.30		$ 0.47
Basic Net Income (Loss) Per Share, From Discontinued Operations					$ (0.02)						$ (0.04)		$ (0.02)
Basic Net Income (Loss) Per Share, Net Income (Loss) Attributable to Evercore Partners Inc.	$ 0.64	$ 0.18	$ 0.27	$ (0.12)	$ (0.02)	$ 0.06	$ 0.09	$ 0.16	$ 0.98		$ 0.26		$ 0.45
Diluted Net Income (Loss) Per Share, From Continuing Operations	$ 0.56	$ 0.17	$ 0.25	$ (0.12)		$ 0.06	$ 0.08	$ 0.14	$ 0.89		$ 0.27		$ 0.41
Diluted Net Income (Loss) Per Share, From Discontinued Operations					$ (0.02)						$ (0.04)		$ (0.02)
Diluted Net Income (Loss) Per Share, Net Income (Loss) Attributable to Evercore Partners Inc.	$ 0.56	$ 0.17	$ 0.25	$ (0.12)	$ (0.02)	$ 0.06	$ 0.08	$ 0.14	$ 0.89		$ 0.23		$ 0.39
Dividends Declared Per Share of Class A Common Stock	$ 0.22	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.18	$ 0.18	$ 0.18	$ 0.82		$ 0.74		$ 0.63

[1] Net revenues include Other Revenue, net, allocated to the segments as follows: For the Years Ended December 31, 2012 2011 2010 Investment Banking(A) $ (3,019 ) $ (2,473 ) $ (84 ) Investment Management(B) (2,636 ) (3,021 ) (552 ) Total Other Revenue, net $ (5,655 ) $ (5,494 ) $ (636 )