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Net Income Per Share Attributable to Evercore Inc. Common Shareholders - Additional Information (Details)
shares in Thousands, $ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2016
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2016
USD ($)
shares
Class G And H Interests and Class I-P and K-P Units [Member]        
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Shares that are Contingently Issuable   400 1,624 2,908
LP Units [Member] | Class A and E LP Units [Member]        
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)   5,075 5,920 6,397
Adjustment to Diluted Net Income Attributable to Class A Common Shareholders if LP Units were Dilutive | $   $ 46,060 $ 28,186 $ 18,196
LP Units [Member]        
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Limited Partnership Units Convertible Conversion Ratio 1 1