Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net Income	$ 179,207	$ 148,512	$ 57,690
Other Comprehensive Income (Loss), net of tax:
Unrealized Gain (Loss) on Marketable Securities and Investments, net	381	(1,763)	(1,751)
Foreign Currency Translation Adjustment Gain (Loss), net	21,679	(17,531)	(16,287)
Other Comprehensive Income (Loss)	22,060	(19,294)	(18,038)
Comprehensive Income	201,267	129,218	39,652
Comprehensive Income Attributable to Noncontrolling Interest	57,128	37,247	10,941
Comprehensive Income Attributable to Evercore Inc.	$ 144,139	$ 91,971	$ 28,711