Noncontrolling Interest - Schedule of Noncontrolling Interest (Details)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Evercore LP [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	12.00%	11.00%	12.00%
Evercore Wealth Management [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	30.00%	43.00%	42.00%
Private Capital Advisory L.P. (PCA) [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	0.00%	10.00%	25.00%
Real Estate Capital Advisory [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest (as a percent)	38.00%	38.00%	0.00%