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Segment Operating Results Revenues Derived from Clients and Private Equity Funds by Geographical Areas (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Net revenue	$ 259,055	$ 239,719
United States [Member]
Segment Reporting Information [Line Items]
Net revenue	173,910	161,822
Europe And Other [Member]
Segment Reporting Information [Line Items]
Net revenue	72,211	71,211
Latin America [Member]
Segment Reporting Information [Line Items]
Net revenue	$ 12,934	$ 6,686

X

- Definition

Net Revenues Excluding Other Revenue And Interest Expense.

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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X

- Details

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