Noncontrolling Interest - Schedule of Noncontrolling Interest (Details)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Evercore LP [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	11.00%	12.00%	14.00%
Evercore Wealth Management [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	43.00%	42.00%	42.00%
Private Capital Advisory L.P. (PCA) [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	24.00%	25.00%	39.00%