Short-term Investments (Tables)

12 Months Ended

Dec. 31, 2020

Investments Debt And Equity Securities [Abstract]

Summary of Major Security Type of Investments

The following table summarizes, by major security type, the Company’s investments (in thousands):

As of December 31, 2020	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Short-term investments
U.S. government securities	$	13,296	$	1	$	—		$	13,297
Asset backed securities		2,559		—		—			2,559
Corporate securities		19,479		3		(3	)		19,479
Commercial paper		23,973		—		—			23,973
Total short-term investments	$	59,307	$	4	$	(3	)	$	59,308
As of December 31, 2019	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Short-term investments
U.S. government securities	$	15,629	$	11	$	(2	)	$	15,638
Asset backed securities		8,789		10		—			8,799
Corporate securities		30,556		30		(1	)		30,585
Commercial paper		16,935		—		—			16,935
Total short-term investments	$	71,909	$	51	$	(3	)	$	71,957