Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2021

Marketable Securities [Abstract]

Summary of Marketable securities

Marketable securities consisted of the following as of September 30, 2021 (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities, short-term
Commercial paper	$	43,923	$	—	$	—		$	43,923
Corporate debt securities		8,043		—		(2	)		8,041
Asset-backed securities		12,200		—		(2	)		12,198
Total available-for-sale securities, short-term		64,166		—		(4	)		64,162
Available-for-sale securities, long-term
Corporate debt securities		16,866		—		(20	)		16,846
Asset-backed securities		7,080		—		(4	)		7,076
U.S. treasury securities		5,988		—		—			5,988
Total available-for-sale securities, long-term		29,934		—		(24	)		29,910
Total available-for-sale securities	$	94,100	$	—	$	(28	)	$	94,072