| Summary of cash, cash equivalent and investments |
|
|
September 30, 2011 |
|
December 31, 2010 |
|
|
Cash |
|
$ |
1,188 |
|
$ |
72 |
|
|
Commercial paper |
|
|
27,274 |
|
|
54,655 |
|
|
Money market and money market funds |
|
|
39,025 |
|
|
21,406 |
|
| |
|
|
|
|
|
| |
Total cash and cash equivalents |
|
$ |
67,487 |
|
$ |
76,133 |
|
| |
|
|
|
|
|
|
Corporate bonds |
|
$ |
68,395 |
|
$ |
31,494 |
|
|
Convertible corporate bonds |
|
|
1,994 |
|
|
4,346 |
|
|
Certificates of deposit and time deposits |
|
|
3,161 |
|
|
9,717 |
|
| |
|
|
|
|
|
| |
Total short-term investments |
|
$ |
73,550 |
|
$ |
45,557 |
|
| |
|
|
|
|
|
|
Corporate bonds |
|
$ |
27,734 |
|
$ |
20,578 |
|
|
Certificates of deposit and time deposits |
|
|
— |
|
|
720 |
|
| |
|
|
|
|
|
| |
Total long-term investments |
|
$ |
27,734 |
|
$ |
21,298 |
|
| |
|
|
|
|
|
|
Total cash, cash equivalents and investments |
|
$ |
168,771 |
|
$ |
142,988 |
|
| |
|
|
|
|
|
| |
|