Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Assets Measured on Recurring Basis

The following table presents information about our assets that are measured at fair value on a recurring basis using the above input categories (in thousands):

	Fair Value Measurements as of March 31, 2016						Fair Value Measurements as of December 31, 2015
Description	Total		Level 1		Level 2		Total		Level 1		Level 2
Money market funds	$	37,419	$	37,419	$	—	$	53,365	$	53,365	$	—
U.S. treasury debt securities	4,007		—		4,007		4,774		—		4,774
U.S. corporate debt securities	8,658		—		8,658		12,646		—		12,646
	$	50,084	$	37,419	$	12,665	$	70,785	$	53,365	$	17,420
Included in cash and cash equivalents	$	37,419					$	53,365
Included in marketable securities	$	12,665					$	17,420