Segment Reporting (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2011

Dec. 31, 2011

Segment Reporting

Schedule of Information of Total Assets on Segment Basis

	December 31,  2011		December 31,  2010
Global Wealth Management	$	3,637,069	$	2,965,168
Institutional Group		1,028,948		883,235
Other		285,883		364,712
	$	4,951,900	$	4,213,115

Schedule of Net Revenues Earned on Major Geographical Areas

	Year Ended December 31,
	2011		2010		2009
Net revenues:
United States	$	1,361,899	$	1,340,727	$	1,069,066
Canada		23,422		10,739		—
United Kingdom		21,945		20,479		13,527
Other European		9,296		10,081		8,043
	$	1,416,562	$	1,382,026	$	1,090,636