v2.4.0.6
Marketable Securities (Tables)
 6 Months Ended
Jun. 30, 2012
Marketable Securities [Abstract]  
Investments Available For Sale
Investments available for sale classified as non-current assets consist of:
 
 
At June 30, 2012
 
Cost
Amount
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
SEI-sponsored mutual funds
$
12,736

 
$
11

 
$
(326
)
 
$
12,421

Other mutual funds
28

 
4

 
—

 
32

Debt securities
64,309

 
4,476

 
—

 
68,785

 
$
77,073

 
$
4,491

 
$
(326
)
 
$
81,238


 
At December 31, 2011
 
Cost
Amount
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
SEI-sponsored mutual funds
$
8,243

 
$
48

 
$
(360
)
 
$
7,931

Other mutual funds
69

 
10

 
—

 
79

Debt securities
70,604

 
4,394

 
—

 
74,998

 
$
78,916

 
$
4,452

 
$
(360
)
 
$
83,008
Trading Securities
Trading securities of the Company consist of:
 
 
At June 30, 2012
 
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
(Losses)
 
Fair
Value
SIV securities
$
139,188

 
$
—

 
$
(91,001
)
 
$
48,187

LSV-sponsored mutual funds
2,049

 
1,816

 
—

 
3,865

Other investments
1,215

 
—

 
(14
)
 
1,201

 
$
142,452

 
$
1,816

 
$
(91,015
)
 
$
53,253

 
 
At December 31, 2011
 
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
(Losses)
 
Fair
Value
SIV securities
$
146,363

 
$
—

 
$
(94,955
)
 
$
51,408

LSV-sponsored mutual funds
2,049

 
1,653

 
—

 
3,702

Other investments
1,215

 
—

 
—

 
1,215

 
$
149,627

 
$
1,653

 
$
(94,955
)
 
$
56,325