Investments

6 Months Ended

Jun. 30, 2014

Investments

Investments

3. Investments

At June 30, 2014, the amortized cost and fair value of investments, with gross unrealized gains and losses, were as follows:

(in thousands)	Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses		Fair Value
Money market funds	$	8,840	$	—		$	—	$	8,840
Federal agency securities	15,099		(5		)	—		15,094
Commercial paper	10,244		—			5		10,249
Corporate debt securities	24,391		—			—		24,391
Total investments	$	58,574	$	(5	)	$	5	$	58,574
Reported as:
Cash and cash equivalents								$	8,443
Marketable securities, current								48,981
Marketable securities, non-current								752
Restricted cash								398
Total investments								$	58,574

At December 31, 2013, the amortized cost and fair value of investments, with gross unrealized gains, were as follows:

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Money market funds	$	53,511	$	—	$	—	$	53,511
Federal agency securities	12,301		—		—		12,301
Commercial paper	8,246		3		—		8,249
Corporate debt securities	1,961		—		—		1,961
Total investments	$	76,019	$	3	$	—	$	76,022
Reported as:
Cash and cash equivalents							$	53,306
Marketable securities							22,511
Restricted cash							205
Total investments							$	76,022

There were no realized gains or losses from the sale of marketable securities for the three and six months ended June 30, 2014 and 2013.