Net Income Per Share Attributable to Evercore Partners Inc. Common Shareholders - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Adjustment To Diluted Net Income Attributable To Class A Common Shareholders If LP Units Were Dilutive	$ 683	$ 1,589
LP Units [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	6,793	5,085
Class A [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Shares that are contingently issuable (in shares)	724	201
Class G And H Interests [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Shares that are contingently issuable (in shares)	724