Marketable Securities

3 Months Ended

Mar. 31, 2015

Investments [Abstract]

Marketable Securities

Note 5 – Marketable Securities

Marketable securities classified as available-for-sale as of March 31, 2015 and December 31, 2014 were comprised of (in thousands):

	March 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	$	46,648	$	—	$	(9)	$	46,639	$	46,660	$	—	$	(36)	$	46,624
Corporate debt securities		66,057		6		(17)		66,046		89,126		8		(37)		89,097
Total	$	112,705	$	6	$	(26)	$	112,685	$	135,786	$	8	$	(73)	$	135,721

Marketable Securities – Unrealized Losses

The Company owned 35 available-for-sale securities as of March 31, 2015. Of these 35 securities, 29 had combined unrealized losses of less than $0.1 million as of March 31, 2015. The Company did not have any investments in a loss position for greater than 12 months as of March 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.