Income Taxes - Income Taxes - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Line Items]
Taxes Payable	$ 3,400	$ 33,621
Tax Cuts and Jobs Act Of 2017, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)		$ 399	$ 143,261
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent		(0.123)	0.271
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount	$ 12,229	$ 23,350	$ 24,003
Effective Income Tax Rate Reconciliation, ASU 2016-09 Benefit for Stock Compensation, Percent	2.70%	4.20%	5.50%
Increase (Decrease) In Net Deferred Tax Assets	$ 27,499
LP Units Exchanged By Employees (in units)	353	1,182
Adjustments to Additional Paid-In-Capital	$ 15,138	$ 46,583
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Unrealized Gain Loss On Marketable Securities In Accumulated Other Comprehensive Income Loss	173	86
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Foreign Currency Translation Adjustment Gain Loss In Accumulated Other Comprehensive Income Loss	1,306	(439)
Tax Credit Carryforward, Amount	6,884
Deferred Tax Assets, Valuation Allowance, Noncurrent	4,600
Unrecognized Tax Benefits	494	$ 0	$ 0	$ 0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	402
Unrecognized Tax Benefits, Interest on Income Taxes Expense	216
Unrecognized Tax Benefits, Income Tax Penalties Accrued	13
Unrecognized Tax Benefits, Interest on Income Taxes Expense	(41)
Unrecognized Tax Benefits, Income Tax Penalties Expense	(3)
Class A and E LP Units [Member]
Income Taxes [Line Items]
Adjustments to Additional Paid-In-Capital	7,352
Evercore LP [Member]
Income Taxes [Line Items]
Increase (Decrease) In Net Deferred Tax Assets	$ 21,278