Employee Benefit Plans - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Contribution Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to Plan	$ 0	$ 0	$ 0
Evercore Europe Defined Contribution Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Define contribution plans annual contribution percentage by employee (as a percent)	10.00%
Company contributions to Plan	$ 3,632	$ 3,360	$ 2,094
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Define contribution plans annual contribution percentage by employee (as a percent)	15.00%
Define contribution plans additional contribution percentage by employee (as a percent)	7.50%
Defined contribution plans employee contribution percentage of eligible compensation matched by employer (as a percent)	5.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Define contribution plans annual contribution percentage by employee (as a percent)	50.00%
Define contribution plans additional contribution percentage by employee (as a percent)	10.00%
Defined contribution plans employee contribution percentage of eligible compensation matched by employer (as a percent)	10.00%