Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Financial Assets Measured at Fair Value on Recurring Basis

The following tables present our financial assets that are measured at fair value on a recurring basis (in thousands):

	June 30, 2016
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market mutual funds	$	171	—		—		$	171
Marketable securities
Commercial paper	—		8,186		—		8,186
Corporate notes and bonds	—		46,984		—		46,984
Government obligations	—		13,026		—		13,026
U.S. agency obligations	—		29,415		—		29,415
Total marketable securities	—		97,611		—		97,611
Total	$	171	$	97,611	$	—	$	97,782

	December 31, 2015
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market mutual funds	$	246	$	—	$	—	$	246
Marketable securities
Commercial paper	—		7,485		—		7,485
Corporate notes and bonds	—		48,859		—		48,859
Government obligations	—		13,991		—		13,991
U.S. agency obligations	—		32,504		—		32,504
Total marketable securities	—		102,839		—		102,839
Total	$	246	$	102,839	$	—	$	103,085