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Amount of asset recognized arising from contingent consideration in a business combination.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Business Changes and Developments - Additional Information (Details) $ in Thousands, R$ in Millions		12 Months Ended
	Oct. 18, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Nov. 30, 2018	Dec. 31, 2017 BRL (R$) seat	Dec. 31, 2017 USD ($) seat
Business Acquisition [Line Items]
Asset Acquisition, Contingent Consideration, Liability		$ 4,463
Asset Acquisition, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		3,971
Proceeds from Sale of Business	$ 34,842	0	$ 34,354	$ 0
Business Combination, Contingent Consideration, Asset	$ 488
Gain (Loss) on Disposition of Business		0	7,808	0
Special Charges		5,012	25,437	8,100
Amortization of Intangible Assets		9,199	9,793	11,640
Goodwill		131,387		160,961			$ 134,231
Impairment of Goodwill			7,107
Goodwill, Impairment Loss, Net of Tax			3,694
Institutional Asset Management [Member]
Business Acquisition [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					14.00%
Goodwill		3,396
Investment Management [Member]
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Business			7,808
Special Charges		0	11,037	8,100
G5 [Member]
Business Acquisition [Line Items]
Held-to-maturity Securities, Redemption Value \| R$						R$ 60
Company Seats on Board \| seat						1	1
Total Seats on Board \| seat						6	6
Debt Securities, Held-to-maturity		9,717					$ 10,995
Debt Securities, Held-to-maturity, Fair Value \| R$						R$ 37
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			16,266
Evercore Trust Company [Member]
Business Acquisition [Line Items]
Assets Deconsolidated			28,523
Liabilities Deconsolidated		0	1,489	$ 0
Special Charges			3,930
Other Income [Member] \| Evercore Trust Company [Member]
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Business			7,808
Special Charges [Member] \| Investment Management [Member] \| Institutional Asset Management [Member]
Business Acquisition [Line Items]
Impairment of Goodwill			7,107
Goodwill [Member] \| Evercore Trust Company [Member]
Business Acquisition [Line Items]
Assets Deconsolidated			$ 28,442
PCA [Member]
Business Acquisition [Line Items]
Issuance of Noncontrolling Interest		$ 770