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Cash, Cash Equivalents And Marketable Securities | 12 Months Ended
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Dec. 31, 2011
Cash, Cash Equivalents And Marketable Securities [Abstract] |
Cash, Cash Equivalents And Marketable Securities | 6. Cash, Cash Equivalents and Marketable Securities Cash, cash equivalents and marketable securities consist of the following (in thousands):
|  | December 31, 2011 |  |  | December 31, 2010 |
Cash and cash equivalents: |  |  |  |  |  |  |  |
Cash |  | $ | 19,109 |  |  | $ | 10,839 |
Money market funds |  |  | 19,829 |  |  |  | 55,465 |
Total cash and cash equivalents |  |  | 38,938 |  |  |  | 66,304 |
Marketable securities: |  |  |  |  |  |  |  |
Corporate debt securities |  |  | — |  |  |  | 19,324 |
Commercial paper |  |  | — |  |  |  | 12,696 |
Total marketable securities |  |  | — |  |  |  | 32,020 |
Total cash, cash equivalents and marketable securities |  | $ | 38,938 |  |  | $ | 98,324 |
The following tables summarize the unrealized gains and losses related to the Company's investments in marketable securities designated as available-for-sale as follows as of December 31, 2010 (in thousands):
As of December 31, 2010 |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Aggregate Fair Value |
Corporate debt securities |  | $ | 19,302 |  |  | $ | 25 |  |  | $ | (3 | ) |  | $ | 19,324 |
Commercial paper |  |  | 12,696 |  |  |  | — |  |  |  | — |  |  |  | 12,696 |
Total |  | $ | 31,998 |  |  | $ | 25 |  |  | $ | (3 | ) |  | $ | 32,020 |
As of December 31, 2011, the Company did not hold any marketable securities and therefore there were no unrealized gains or losses. In addition, the Company did not experience any significant realized gains or losses on its investments through December 31, 2011. The Company generally reviews investments held with unrealized losses to determine if the loss is other-than-temporary. As of December 31, 2010, the Company determined that it had the ability and intent to hold these investments for a period of time sufficient for a recovery of fair market value and did not consider the investments to be other-than-temporarily impaired. The Company's money market funds maintained a net asset value of $1.00 for all periods presented. Net unrealized gains/losses are recorded to other comprehensive income (loss) in the Company's consolidated balance sheets.

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- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References No definition available. + Details
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