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Marketable Securities | 12 Months Ended
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Dec. 31, 2015
Investments [Abstract] |
Marketable Securities | Note 6 – Marketable Securities Marketable securities classified as available-for-sale as of December 31, 2015 and 2014 were comprised of (in thousands):
|  | December 31, 2015 |  | December 31, 2014 |
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |
Asset-backed securities |  | $ | 20,748 |  | $ | — |  | $ | (9) |  | $ | 20,739 |  | $ | 46,660 |  | $ | — |  | $ | (36) |  | $ | 46,624 |
Corporate debt securities |  |  | 116,821 |  |  | 29 |  |  | (41) |  |  | 116,809 |  |  | 89,126 |  |  | 8 |  |  | (37) |  |  | 89,097 |
Total |  | $ | 137,569 |  | $ | 29 |  | $ | (50) |  | $ | 137,548 |  | $ | 135,786 |  | $ | 8 |  | $ | (73) |  | $ | 135,721 |
In 2014, the Company sold its remaining auction rate security and received proceeds of $1.8 million resulting in a realized gain of $0.6 million, all of which resulted from reclassification adjustments out of accumulated other comprehensive income (loss) in 2014. Marketable Securities – Unrealized Losses The Company owned 47 available-for-sale securities as of December 31, 2015. Of these 47 securities, 35 had combined unrealized losses of less than $0.1 million as of December 31, 2015. The Company did not have any investments in a loss position for greater than 12 months as of December 31, 2015. The Company has evaluated its marketable securities and has determined that none of these investments has an other-than-temporary impairment, as it has no intent to sell securities with unrealized losses and it is not more likely than not that the Company will be required to sell any securities with unrealized losses, given the Company’s current and anticipated financial position.

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