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Marketable Securities and Equity-Method Affiliates
 6 Months Ended
Jun. 30, 2012
Marketable Securities and Equity-Method Affiliates [Abstract]  
Marketable Securities and Equity-Method Affiliates
Marketable Securities and Equity-Method Affiliates
Investments in marketable securities are reported at fair value and consist of time deposits and auction rate securities. During the six month ended June 30, 2012, we sold our auction rate securities for $11,260 in cash and recorded a realized loss of $712 , which is included in other income (expense).
The amortized cost, gross unrealized gains, gross unrealized losses and fair value for marketable securities by major security type were as follows:
 
June 30, 2012
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
Time deposits
$
6,623

 
$
—

 
$
—

 
$
6,623

Auction rate securities
—

 
—

 
—

 
—

 
$
6,623

 
$
—

 
$
—

 
$
6,623

 
December 31, 2011
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
Time deposits
$
5,359

 
$
—

 
$
—

 
$
5,359

Auction rate securities
11,972

 
—

 
(921
)
 
11,051

 
$
17,331

 
$
—

 
$
(921
)
 
$
16,410


Maturities of debt securities were as follows:
 
June 30, 2012
 
December 31, 2011
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
Due less than one year
$
6,623

 
$
6,623

 
$
5,359

 
$
5,359

Due after one year through five years
—

 
—

 
—

 
—

Due after ten years
—

 
—

 
11,972

 
11,051

 
$
6,623

 
$
6,623

 
$
17,331

 
$
16,410



Equity-Method Affiliates
In 2009, we entered into a limited partnership, which invests in biotechnology and medical device companies. We committed $20,000, or approximately 12%, of the limited partnership's total committed capital. As of June 30, 2012, we have contributed $7,120 of our total committed capital of $20,000. We recognized equity income (loss) of $(262) and $135 for the three and six month ended June 30, 2012, respectively. This income is reported as other income (expense). As of June 30, 2012, equity method affiliates had a carrying value of $7,544, which is reported in other assets on the consolidated balance sheets.