Operating Results on Pro Forma Basis (Detail) (Lexicon Partnership LLP, USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Lexicon Partnership LLP
Business Acquisition [Line Items]
Net Revenues	$ 575,344	$ 446,174
Pre-tax Income	31,325	18,650
Net Income from Continuing Operations Attributable to Evercore Partners Inc.	$ 4,635	$ 2,504
Diluted Net Income Per Share from Continuing Operations Available to Evercore Partners Inc.	$ 0.15	$ 0.10

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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