Net Income Per Share Attributable to Evercore Inc. Common Shareholders - Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Basic Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									40,553	39,994	40,595
Basic net income per share attributable to Evercore Inc. common shareholders	$ 5.40	$ 1.05	$ 1.39	$ 0.78	$ 2.68	$ 1.09	$ 2.02	$ 1.66	$ 8.64	$ 7.44	$ 9.29
Diluted Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									40,553	39,994	40,595
Diluted weighted average Class A Shares outstanding									42,623	43,194	45,279
Diluted net income per share attributable to Evercore Inc. common shareholders	$ 5.02	$ 1.01	$ 1.35	$ 0.74	$ 2.48	$ 1.01	$ 1.88	$ 1.52	$ 8.22	$ 6.89	$ 8.33
Class A [Member]
Basic Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Net income attributable to Evercore Inc. common shareholders									$ 350,574	$ 297,436	$ 377,240
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									40,553	39,994	40,595
Basic net income per share attributable to Evercore Inc. common shareholders									$ 8.64	$ 7.44	$ 9.29
Diluted Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Net income attributable to Evercore Inc. common shareholders									$ 350,574	$ 297,436	$ 377,240
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									$ 350,574	$ 297,436	$ 377,240
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									40,553	39,994	40,595
Assumed exchange of LP Units for Class A Shares (in shares)									72	718	1,378
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)									1,578	2,082	2,906
Shares that are contingently issuable (in shares)									420	400	400
Diluted weighted average Class A Shares outstanding									42,623	43,194	45,279
Diluted net income per share attributable to Evercore Inc. common shareholders									$ 8.22	$ 6.89	$ 8.33