Noncontrolling Interest Changes In Noncontrolling Interest (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance				$ 160,952					$ 160,952
Net Income Attributable to Noncontrolling Interest	$ 9,374	$ (1,762)	$ 5,622	1,593	$ 11,377	$ 875	$ 5,421	$ 2,824	14,827	$ 20,497	$ 18,760
Total comprehensive income									10,941	17,889	18,532
Evercore LP Units Purchased or Converted into Class A Shares									(26)
Net Reclassification to/from Redeemable Noncontrolling Interest									0	27,477	0
Ending balance	202,664				160,952				202,664	160,952
Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance				$ 160,952				$ 60,577	160,952	60,577	62,243
Net Income Attributable to Noncontrolling Interest									14,827	20,497	18,760
Other comprehensive income (loss)									(3,886)	(2,608)	(228)
Total comprehensive income									10,941	17,889	18,532
Evercore LP Units Purchased or Converted into Class A Shares									(12,012)	(11,686)	(21,414)
Amortization and Vesting of LP Units/Interests									82,734	3,593	20,365
Issuance of Noncontrolling Interest for Acquisitions and Investments									0	72,344	0
Distributions to Noncontrolling Interests									(23,723)	(10,655)	(18,950)
Fair value of Noncontrolling Interest in Pan									0	0	309
Noncontrolling Interest, Decrease from Deconsolidation									(16,090)	0	0
Net Reclassification to/from Redeemable Noncontrolling Interest									0	27,477	0
Issuance of Noncontrolling Interest									594	2,449	4,021
Purchase of Noncontrolling Interest									0	0	(4,529)
Other, net									(732)	(1,036)	0
Total other items									(39,951)	18,235	(19,149)
Ending balance	$ 202,664				$ 160,952				$ 202,664	$ 160,952	$ 60,577