Evercore Partners Inc. Stockholders' Equity - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended															1 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	Dec. 31, 2012 Minimum	Dec. 31, 2011 Minimum	Dec. 31, 2012 Maximum	Dec. 31, 2011 Maximum	Dec. 31, 2012 Share Repurchase Program	Dec. 31, 2012 Share Repurchase Program Minimum	Dec. 31, 2012 Share Repurchase Program Maximum	Dec. 31, 2012 Exchange of LP Units	Dec. 31, 2011 Exchange of LP Units	Dec. 31, 2011 Offering	Dec. 31, 2011 Purchase of LP Units	Dec. 31, 2011 Increase in Tax Basis of Evercore LP	Aug. 19, 2011 Class A	Dec. 31, 2012 Class A	Dec. 31, 2011 Class A	Dec. 31, 2012 Class A Morse Williams	Dec. 31, 2012 Class A MJC Associates Agreement	Dec. 31, 2012 Class A Lexicon Partnership LLP	Dec. 31, 2011 Class A Lexicon Partnership LLP	Dec. 31, 2012 Evercore LP Exchange of LP Units	Dec. 31, 2011 Evercore LP Exchange of LP Units
Temporary Equity [Line Items]
Common Stock, shares issued																			3,091,000		5,365,000				35,040,501	31,014,265
Increase in common stock									$ 21	$ 4											$ 54
Increase (Decrease) to Additional Paid-In-Capital									15,022	2,545									5,846	0	167,880	(84,195)	7,122								1,477	7,264
Payment to the LP Unit holders of the cash tax savings, percent										85.00%
Retained percent of tax benefits										15.00%
Deferred Tax Assets-Non-Current	229,449				186,689				229,449	186,689									38,974	0	47,481										1,477	7,264
Accumulated Unrealized Gain (Loss) on Marketable Securities, net	(1,353)								(1,353)
Accumulated foreign Currency Translation Adjustment Gain (Loss), net	(7,733)								(7,733)
Amounts Due Pursuant to Tax Receivable Agreements	165,350				137,448				165,350	137,448									33,128	0	40,360
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
Dividend declared date									Jan. 29, 2013
Dividend record date									Feb. 22, 2013
Dividend payment date									Mar. 08, 2013
Declared and paid dividends per share									$ 0.82	$ 0.74
Declared and paid dividends									24,296	19,346
Shares purchased for the net settlement of stock-based compensation awards									726,000	1,587,000
Treasury stock acquired, market value per share												$ 21.71	$ 15.76	$ 29.62	$ 36.41		$ 22.58	$ 26.62
Number of shares repurchased																1,884,000
Increase in Treasury Stock									66,588	45,105
Shares issued in conjunction with acquisition																								28,000			39,000	65,000	116,000	28,000
Decrease in treasury stock									$ 5,641	$ 636
Unit gifted by employees									2,108,000	423,000
Additional unit gifted by employees									983,000
Additional unit exchange settlement period									2013-01