Investments

3 Months Ended

Mar. 31, 2014

Investments

Investments

3. Investments

At March 31, 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	$	33,137	$	—	$	—		$	33,137
Commercial paper	10,238		9		—			10,247
Corporate debt securities	20,757		—		(10		)	20,747
Total investments	$	64,132	$	9	$	(10	)	$	64,131
Reported as:
Cash and cash equivalents								$	32,739
Marketable securities, current								29,302
Restricted cash								398
Marketable securities, non-current								1,692
Total investments								$	64,131

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 months ended March 31, 2014 and 2013.