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INVESTMENTS
 6 Months Ended
Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]  
INVESTMENTS
INVESTMENTS
Investment balances are presented in the table below (in thousands). All investments are carried at fair value and are accounted for as trading securities.
 
 
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Market
Value
June 30, 2015:
 
 
 
 
 
 
 
 
U.S. Government and Government agency obligations
 
$
30,468

 
$
15

 
$
(4
)
 
$
30,479

Money market funds
 
2,934

 
—

 
—

 
2,934

Equity funds
 
12,580

 
321

 
(119
)
 
12,782

Marketable securities
 
$
45,982

 
$
336

 
$
(123
)
 
$
46,195


December 31, 2014:
 
 
 
 
 
 
 
 
U.S. Government and Government agency obligations
 
$
66,761

 
$
20

 
$
(8
)
 
$
66,773

Money market funds
 
8,250

 
—

 
—

 
8,250

Equity funds
 
4,477

 
223

 
(103
)
 
4,597

Marketable securities
 
$
79,488

 
$
243

 
$
(111
)
 
$
79,620

 
As of June 30, 2015 and December 31, 2014, $11.2 million and $4.6 million in corporate funds, respectively, were invested in Westwood Funds, Westwood Common Trust Funds and the UCITS Fund. See Note 8 “Variable Interest Entities.”