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Business Information (Tables)
3 Months Ended
Mar. 31, 2013
Segment Reporting [Abstract]  
Revenues by Source
The following provides a breakdown of our revenues by source for the three month periods ended March 31, 2013 and 2012, respectively:
 
For the Three Months Ended 
 
 
March 31, 2013
 
March 31, 2012
 
Amount 
 
% of Total         
 
 
Amount 
 
% of Total         
 
 
(in millions, unaudited)
Advisory revenues
$81.4
 
102
 %
 
$73.3
 
89
%
Investment revenues
(1.9
)
 
(2
)%
 
$9.4
 
11
%
Total revenues
$79.5
 
100
 %
 
$82.7
 
100
%