Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Investment Banking:
Other Revenue, Including Interest and Investments	$ 12,479	$ 9,911	$ 13,047	$ 35,886
Total Revenues	407,518	407,864	1,352,969	1,362,492
Interest Expense	5,003	5,666	16,372	13,921
Net Revenues	402,515	402,198	1,336,597	1,348,571
Expenses
Employee Compensation and Benefits	259,812	241,702	864,600	803,657
Occupancy and Equipment Rental	18,043	16,946	54,318	51,225
Professional Fees	17,324	21,577	53,165	60,912
Travel and Related Expenses	3,182	17,589	23,089	54,650
Communications and Information Services	13,868	12,146	40,704	34,773
Depreciation and Amortization	6,214	8,419	20,060	23,123
Execution, Clearing and Custody Fees	2,840	3,265	10,230	9,483
Special Charges, Including Business Realignment Costs	7,380	1,029	39,614	3,087
Acquisition and Transition Costs	454	380	560	488
Other Operating Expenses	9,712	8,801	30,539	26,185
Total Expenses	338,829	331,854	1,136,879	1,067,583
Income Before Income from Equity Method Investments and Income Taxes	63,686	70,344	199,718	280,988
Income from Equity Method Investments	3,111	2,562	8,552	7,226
Income Before Income Taxes	66,797	72,906	208,270	288,214
Provision for Income Taxes	15,677	20,402	51,042	60,253
Net Income	51,120	52,504	157,228	227,961
Net Income Attributable to Noncontrolling Interest	8,510	9,226	27,031	35,709
Net Income Attributable to Evercore Inc.	42,610	43,278	130,197	192,252
Net Income Attributable to Evercore Inc. Common Shareholders	$ 42,610	$ 43,278	$ 130,197	$ 192,252
Weighted Average Shares of Class A Common Stock Outstanding
Basic (in shares)	40,694	39,704	40,441	40,246
Diluted (in shares)	42,343	42,789	42,185	43,437
Net Income Per Share Attributable to Evercore Inc. Common Shareholders:
Basic (in dollars per share)	$ 1.05	$ 1.09	$ 3.22	$ 4.78
Diluted (in dollars per share)	$ 1.01	$ 1.01	$ 3.09	$ 4.43
Investment Banking [Member]
Investment Banking:
Revenue from Contract with Customer	$ 381,014	$ 385,303	$ 1,300,197	$ 1,289,154
Net Revenues	385,463	388,012	1,294,493	1,305,586
Expenses
Special Charges, Including Business Realignment Costs	7,380	1,029	39,582	3,087
Acquisition and Transition Costs	154	180	260	180
Income Before Income from Equity Method Investments and Income Taxes	59,105	68,398	194,475	274,517
Income from Equity Method Investments	570	282	1,171	756
Income Before Income Taxes	59,675	68,680	195,646	275,273
Investment Banking [Member] | Advisory Fees [Member]
Investment Banking:
Revenue from Contract with Customer	270,662	320,885	965,662	1,090,309
Investment Banking [Member] | Underwriting Fees [Member]
Investment Banking:
Revenue from Contract with Customer	66,499	17,598	181,182	61,428
Investment Banking [Member] | Commissions and Related Fees [Member]
Investment Banking:
Revenue from Contract with Customer	43,853	46,820	153,353	137,417
Investment Management [Member]
Investment Banking:
Revenue from Contract with Customer	14,025	12,650	39,725	37,452
Net Revenues	17,052	14,186	42,104	42,985
Expenses
Special Charges, Including Business Realignment Costs	0	0	32	0
Acquisition and Transition Costs	300	200	300	308
Income Before Income from Equity Method Investments and Income Taxes	4,581	1,946	5,243	6,471
Income from Equity Method Investments	2,541	2,280	7,381	6,470
Income Before Income Taxes	7,122	4,226	12,624	12,941
Investment Management [Member] | Asset Management [Member]
Investment Banking:
Revenue from Contract with Customer	$ 14,025	$ 12,650	$ 39,725	$ 37,452