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Marketable Securities
 9 Months Ended
Sep. 30, 2015
Marketable Securities [Abstract]  
Marketable Securities

Note 5.      marketable securities

 

The amortized cost and fair value of marketable securities were as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As of September 30, 2015

 

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate bonds

 

$
171,949 

 

$
39 

 

$
(150)

 

$
171,838 

 

Agency bonds

 

 
18,108 

 

 
3 

 

 

 -

 

 
18,111 

 

U.S. government bonds

 

 
10,174 

 

 
6 

 

 

 -

 

 
10,180 

 

Certificates of deposit

 

 
3,400 

 

 

 -

 

 

 -

 

 
3,400 

 

Commercial paper

 

 
1,999 

 

 

 -

 

 

 -

 

 
1,999 

 

International government bonds

 

 
1,467 

 

 

 -

 

 
(1)

 

 
1,466 

 

Municipal bonds

 

 
1,400 

 

 
5 

 

 

 -

 

 
1,405 

 

Total marketable securities

 

$
208,497 

 

$
53 

 

$
(151)

 

$
208,399 

 

 

No marketable securities have been in a continuous unrealized loss position for more than twelve months. Our portfolio of marketable securities had an average A+ credit rating as of September 30, 2015. There were no marketable securities that we consider to be other-than-temporarily impaired as of September 30, 2015.

 

Remaining contractual maturities of marketable securities were as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

As of September 30, 2015

 

 

Amortized Cost

 

 

Fair Value

 

 

 

 

 

 

 

 

 

Due in one year or less

 

$
144,120 

 

$
144,109 

 

Due after one through two years

 

 
64,377 

 

 
64,290 

 

 

 

$
208,497 

 

$
208,399