Cash, Cash Equivalents and Short-Term Investments (Tables)

12 Months Ended

Dec. 31, 2019

Cash, Cash Equivalents and Short-Term 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 December 31, 2019 and December 31, 2018 are summarized below (in thousands). Estimated fair value is based on quoted market prices for these investments.

	December 31, 2019
			Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
Cash and cash equivalents:
Cash	$	3,124	$	—	$	—	$	3,124
Money market funds		147,208		—		—		147,208
Corporate bonds		11,441		—		—		11,441
Commercial paper		19,357		3		—		19,360
Total cash and cash equivalents	$	181,130	$	3	$	—	$	181,133
Short-term investments
Corporate bonds	$	21,690	$	6	$	(3)	$	21,693
Commercial paper		36,667		14		—		36,681
Asset-backed securities		8,005		—		—		8,005
Total short-term investments	$	66,362	$	20	$	(3)	$	66,379
Total cash equivalents and investments	$	247,492	$	23	$	(3)	$	247,512

	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 and cash equivalents	$	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