Cash, Cash Equivalents and Investments (Tables)

9 Months Ended

Sep. 30, 2019

Cash, Cash Equivalents and Investments

Schedule of Securities Classified as Cash, Cash Equivalents and Short-Term Investments

Securities classified as cash, cash equivalents and short-term investments as of September 30, 2019 and December 31, 2018, are summarized below (in thousands). Estimated fair value is based on quoted market prices for these investments.

	September 30, 2019
			Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
Cash and cash equivalents:
Cash	$	3,595		—		—	$	3,595
Money market funds		89,078		—		—		89,078
Total cash and cash equivalents	$	92,673	$	—	$	—	$	92,673
Short-term investments
Corporate bonds		3,324		1		—		3,325
Commercial paper		6,234		2		—		6,236
Asset-backed securities		1,308		1		—		1,309
Total short-term investments	$	10,866	$	4	$	—	$	10,870
Total cash equivalents and investments	$	103,539	$	4	$	—	$	103,543

	December 31, 2018
			Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
Cash and cash equivalents:
Cash	$	3,733	$	—	$	—	$	3,733
Money market funds		73,238		—		—		73,238
Commercial paper		1,797		—		—		1,797
Total cash equivalents and investments	$	78,768	$	—	$	—	$	78,768
Short-term investments
U.S. treasury securities	$	3,996		—		—	$	3,996
Corporate bonds		34,611		—		(21)		34,590
Commercial paper		41,371		—		(14)		41,357
Asset-backed securities		9,381		—		(3)		9,378
Total short-term investments	$	89,359	$	—	$	(38)	$	89,321
Total cash equivalents and investments	$	168,127	$	—	$	(38)	$	168,089