Income Taxes Income Taxes - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Line Items]
Taxes Payable	$ 33,621	$ 16,494
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		27.10%
Effective Income Tax Rate Reconciliation Reduction From Tax Cuts And Jobs Act Of 2017, Percent	12.30%
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	$ 23,350	$ 24,003
Effective Income Tax Rate Reconciliation, ASU 2016-09 Benefit for Stock Compensation, Percent	4.20%	5.50%	0.00%
Increase (Decrease) In Net Deferred Tax Assets	$ 42,198
Adjustments to Additional Paid-In-Capital	$ 46,583	$ 44,729
Tax Savings Distribution Ratio To Unit Holders (as a percent)	85.00%
Retained Ratio Of Tax Savings (as a percent)	15.00%
Deferred Tax Assets	$ 241,092	198,894
Amounts Due Pursuant to Tax Receivable Agreements	94,411	90,375
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Unrealized Gain Loss On Marketable Securities In Accumulated Other Comprehensive Income Loss	86	(207)
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Foreign Currency Translation Adjustment Gain Loss In Accumulated Other Comprehensive Income Loss	439	$ (4,046)
Tax Credit Carryforward, Amount	6,581
Deferred Tax Assets, Valuation Allowance, Noncurrent	$ 3,249
Class A and E LP Units [Member]
Income Taxes [Line Items]
LP Units Exchanged By Employees and Purchased by Company (in units)	1,182
Adjustments to Additional Paid-In-Capital	$ 13,973
Class A LP Units [Member]
Income Taxes [Line Items]
Adjustments to Additional Paid-In-Capital	$ 2,329
LP Units Exchanged by Employees Which Triggered Additional Liability Under Tax Receivable Agreement (in units)	551
Deferred Tax Assets	$ 15,526
Amounts Due Pursuant to Tax Receivable Agreements	13,197
Evercore LP [Member]
Income Taxes [Line Items]
Increase (Decrease) In Net Deferred Tax Assets	$ 14,844