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, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Basic Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									39,994	40,595	39,641
Basic net income per share attributable to Evercore Inc. common shareholders	$ 2.68	$ 1.09	$ 2.02	$ 1.66	$ 4.07	$ 1.21	$ 1.69	$ 2.36	$ 7.44	$ 9.29	$ 3.16
Diluted Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									39,994	40,595	39,641
Diluted weighted average Class A Shares outstanding									43,194	45,279	44,826
Diluted net income per share attributable to Evercore Inc. common shareholders	$ 2.48	$ 1.01	$ 1.88	$ 1.52	$ 3.67	$ 1.08	$ 1.52	$ 2.10	$ 6.89	$ 8.33	$ 2.80
Class A [Member]
Basic Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Net income attributable to Evercore Inc. common shareholders									$ 297,436	$ 377,240	$ 125,454
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									39,994	40,595	39,641
Basic net income per share attributable to Evercore Inc. common shareholders									$ 7.44	$ 9.29	$ 3.16
Diluted Net Income Per Share Attributable to Evercore Inc. Common Shareholders
Net income attributable to Evercore Inc. common shareholders									$ 297,436	$ 377,240	$ 125,454
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									$ 297,436	$ 377,240	$ 125,454
Weighted average Class A Shares outstanding, including vested RSUs (in shares)									39,994	40,595	39,641
Assumed exchange of LP Units for Class A Shares (in shares)									718	1,378	842
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)									2,082	2,906	2,719
Shares that are contingently issuable (in shares)									400	400	1,624
Diluted weighted average Class A Shares outstanding									43,194	45,279	44,826
Diluted net income per share attributable to Evercore Inc. common shareholders									$ 6.89	$ 8.33	$ 2.80