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Compensation expense related to deferred cash consideration

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Compensation expense related to service-based awards

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Expense Related To Separation Benefits

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The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Maximum term of the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

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Minimum period the individual is required to perform services to be fully vested under the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Share-Based and Other Deferred Compensation - Additional information (Detail) - USD ($) $ / shares in Units, shares in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Feb. 29, 2016	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of Deferred Cash Compensation		$ 38,647,000
Expense Related To Separation Benefits		2,028,000	$ 1,608,000
Cash Payments Related To Separation Benefits		1,139,000	1,210,000
Employee Loans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation arrangement compensation expense		$ 4,832,000	4,580,000
Requisite service period (in years)		1 year
Maximum contractual term (in years)		5 years
Unamortized deferred compensation		$ 36,197,000
Equity Grants [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value (in dollars per share)		$ 44.67
Equity Grants [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value (in dollars per share)		$ 50.81
Equity Grants [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to Service-based Award		$ 28,762,000	27,495,000
Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long Term Incentive Plan Performance period (in years)		4 years
Long Term Incentive Plan Payment period (in years)		2 years
Deferred compensation arrangement compensation expense		$ 3,739,000	1,513,000
Restricted Stock Units (RSUs) [Member] \| Equity Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued during period (in shares)		2,869
Shares vested during period (in shares)		2,171
Shares forfeited during period (in shares)		9
Deferred Cash Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation, vesting period (in years)		4 years
Compensation expense related to deferred compensation programs		$ 2,560,000	560,000
Special Charges [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense Related To Separation Benefits			$ 1,965,000
Evercore ISI [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Management Basis EBIT Margin (as a percent)		16.20%	15.00%
Management Basis EBIT		$ 36,900,000	$ 31,500,000
Lexicon [Member] \| Acquisition Related [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to acquisition related awards			615,000
Compensation expense related to deferred cash consideration			(29,000)
Class E LP Units [Member] \| Evercore ISI [Member] \| Vested LP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of LP Units (in units)				710
Class E LP Units [Member] \| Evercore ISI [Member] \| Unvested LP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of LP Units (in units)				710
Class E LP Units [Member] \| Evercore ISI [Member] \| Acquisition Related [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to acquisition related awards		$ 5,613,000	5,068,000
Class G Interests [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Management Basis EBIT Margin (as a percent)		12.00%
Class G Interests [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Management Basis EBIT Margin (as a percent)		16.00%
Class G Interests [Member] \| Evercore ISI [Member] \| Vested LP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of LP Units (in units)				538
Class G Interests [Member] \| Evercore ISI [Member] \| Unvested LP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of LP Units (in units)				540
Class G Interests [Member] \| Evercore ISI [Member] \| Acquisition Related [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares vested during period (in shares)	371
Class H Interests [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class H Interests Performance Period (in years)		3 years
Class H Interests [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Management Basis EBIT Margin (as a percent)		7.00%
Management Basis EBIT		$ 8,000,000
Class H Interests [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Management Basis EBIT Margin (as a percent)		17.00%
Management Basis EBIT		$ 48,000,000
Class H Interests [Member] \| Evercore ISI [Member] \| Vested LP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of LP Units (in units)				2,044
Class H Interests [Member] \| Evercore ISI [Member] \| Unvested LP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Of LP Units (in units)				2,051
Class G And H Interests [Member] \| Evercore ISI [Member] \| Acquisition Related [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to acquisition related awards		$ 26,051,000	$ 20,143,000