Net Income Per Share Attributable to Evercore Inc. Common Shareholders - Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Weighted average Class A Shares outstanding, including vested RSUs (in shares)	40,694	39,704	40,441	40,246
Basic net income per share attributable to Evercore Inc. common shareholders	$ 1.05	$ 1.09	$ 3.22	$ 4.78
Diluted Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Weighted average Class A Shares outstanding, including vested RSUs (in shares)	40,694	39,704	40,441	40,246
Diluted weighted average Class A Shares outstanding	42,343	42,789	42,185	43,437
Diluted net income per share attributable to Evercore Inc. common shareholders	$ 1.01	$ 1.01	$ 3.09	$ 4.43
Class A [Member]
Basic Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Net income attributable to Evercore Inc. common shareholders	$ 42,610	$ 43,278	$ 130,197	$ 192,252
Weighted average Class A Shares outstanding, including vested RSUs (in shares)	40,694	39,704	40,441	40,246
Basic net income per share attributable to Evercore Inc. common shareholders	$ 1.05	$ 1.09	$ 3.22	$ 4.78
Diluted Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Net income attributable to Evercore Inc. common shareholders	$ 42,610	$ 43,278	$ 130,197	$ 192,252
Noncontrolling interest related to the assumed exchange of LP Units for Class A Shares
Associated corporate taxes related to the assumed elimination of Noncontrolling Interest described above
Diluted net income attributable to Evercore Inc. common shareholders	$ 42,610	$ 43,278	$ 130,197	$ 192,252
Weighted average Class A Shares outstanding, including vested RSUs (in shares)	40,694	39,704	40,441	40,246
Assumed exchange of LP Units for Class A Shares (in shares)	0	648	96	756
Additional shares of the Company's common stock assumed to be issued pursuant to non-vested RSUs and deferred consideration, as calculated using the Treasury Stock Method (in shares)	1,249	2,037	1,248	2,035
Shares that are contingently issuable (in shares)	400	400	400	400
Diluted weighted average Class A Shares outstanding	42,343	42,789	42,185	43,437
Diluted net income per share attributable to Evercore Inc. common shareholders	$ 1.01	$ 1.01	$ 3.09	$ 4.43