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Segment Information - Reported Revenue and Profit Before Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenue
Total revenue	$ 255,168	$ 239,146
Income (loss) before income taxes
Total income (loss) before income taxes	5,109	6,713
Private Client Division [Member]
Revenue
Total revenue	147,820	143,369
Income (loss) before income taxes
Total income (loss) before income taxes	10,308	17,327
Asset management fees	77.50%	77.50%
Asset Management [Member]
Revenue
Total revenue	24,610	20,956
Income (loss) before income taxes
Total income (loss) before income taxes	7,683	6,543
Asset management fees	22.50%	22.50%
Capital Markets [Member]
Revenue
Total revenue	77,881	65,131
Income (loss) before income taxes
Total income (loss) before income taxes	11,184	3,533
Commercial Mortgage Banking [Member]
Revenue
Total revenue	4,872	8,066
Income (loss) before income taxes
Total income (loss) before income taxes	1,849	2,878
Corporate and Other [Member]
Revenue
Total revenue	(15)	1,624
Income (loss) before income taxes
Total income (loss) before income taxes	$ (25,915)	$ (23,568)

X

- Definition

Revenue allocation percentage.

+ References

No definition available.

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



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