The number of limited partner units issued.

+ References+ Details

Net of tax amount of the appreciation (loss) in value of unsold available-for-sale securities attributable to the noncontrolling interest. Excludes amounts related to other than temporary impairment (OTTI) losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 29

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph c(3)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 30

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569643-111683

+ Details

- Definition

Amount after tax and reclassification adjustments, resulting from the process of expressing in the reporting currency of the reporting entity those amounts that are denominated or measured in a different currency, and from transactions whose terms are denominated in a currency other than the entity's functional currency, which is attributable to noncontrolling interests.

+ References

+ Details

Noncontrolling Interest - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Feb. 28, 2010
Noncontrolling Interest [Line Items]
Unrealized gain on marketable securities	$ 117	$ 312
Foreign currency translation adjustment gain (loss)	(123)	1,298
Issued LP Units				500
Cash value of redemption of LP Units Issues	16,500
Fair value of limited partners units exchanged	49,180		49,727
Redemption value accretion	21	21
Trilantic
Noncontrolling Interest [Line Items]
Fair value of limited partners units exchanged				16,090
EWM
Noncontrolling Interest [Line Items]
Noncontrolling Interest	49.00%
Fair value of limited partners units exchanged	28,831		29,399
Evercore LP
Noncontrolling Interest [Line Items]
Noncontrolling Interest	16.00%
ECB
Noncontrolling Interest [Line Items]
Noncontrolling Interest	28.00%
AS
Noncontrolling Interest [Line Items]
Noncontrolling Interest	34.00%
Fair value of limited partners units exchanged	$ 3,997		$ 3,997
Institutional Equities
Noncontrolling Interest [Line Items]
Noncontrolling Interest	38.00%
Evercore Trust Company NA
Noncontrolling Interest [Line Items]
Noncontrolling Interest	14.00%
Pan
Noncontrolling Interest [Line Items]
Noncontrolling Interest	32.00%