XML 121 R51.htm IDEA: XBRL DOCUMENT v2.4.0.6
GAIN (LOSS) ON INVESTMENTS, NET (Tables)
12 Months Ended
Dec. 31, 2012
GAIN (LOSS) ON INVESTMENTS, NET  
Schedule of components of (loss) gain on investments

 

 

2012

 

2011

 

2010

 

Loss on auction rate securities

 

$

 

$

 

$

(5,552

)

Gain on auction rate securities settlement

 

 

 

 

Gain on disposal of investments

 

2,056

 

22,776

 

 

 

 

$

2,056

 

$

22,776

 

$

(5,552

)