Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2017

The following tables summarize the fair value of financial assets and liabilities that are measured at fair value and the classification by level of input within the fair value hierarchy:



	FAIR VALUE MEASUREMENTS AS OF MARCH 31, 2017
(in thousands)	Level 1		Level 2		Level 3		Total
Cash and cash equivalents:
Cash and money market accounts	$	133,535	$	—	$	—	$	133,535
Commercial paper	—		5,999		—		5,999
Total cash and cash equivalents	$	133,535	$	5,999	$	—	$	139,534
Investments:
Certificates of deposit	$	—	$	3,800	$	—	$	3,800
Commercial paper	—		27,285		—		27,285
Corporate bonds	—		37,245		—		37,245
Total investments	$	—	$	68,330	$	—	$	68,330
Total cash, cash equivalents, and investments	$	133,535	$	74,329	$	—	$	207,864



	FAIR VALUE MEASUREMENTS AS OF DECEMBER 31, 2016
(in thousands)	Level 1		Level 2		Level 3		Total
Cash and cash equivalents:
Cash and money market accounts	$	196,445	$	—	$	—	$	196,445
Commercial paper	—		1,500		—		1,500
Total cash and cash equivalents	$	196,445	$	1,500	$	—	$	197,945
Investments:
Certificates of deposit	$	—	$	6,923	$	—	$	6,923
Corporate bonds	—		27,544		—		27,544
Government agencies	—		1,250		—		1,250
Total investments	$	—	$	35,717	$	—	$	35,717
Total cash, cash equivalents, and investments	$	196,445	$	37,217	$	—	$	233,662