Short-Term Investments (Tables)

3 Months Ended

Mar. 31, 2021

Cash And Cash Equivalents [Abstract]

Summary of Short-Term Investments

The following tables summarize short-term investments (in thousands):

	As of March 31, 2021
			Unrealized
	Amortized Cost		Gains		Losses			Estimated Fair Value
Commercial paper	$	27,387	$	—	$	—		$	27,387
Corporate debt securities		16,472		—		(5	)		16,467
U.S. government and agency securities		21,141		5		—			21,146
Total short-term investments	$	65,000	$	5	$	(5	)	$	65,000

	As of December 31, 2020
			Unrealized
	Amortized Cost		Gains		Losses			Estimated Fair Value
Commercial paper	$	27,136	$	—	$	—		$	27,136
Corporate debt securities		26,510		—		(4	)		26,506
U.S. government and agency securities		18,136		5		—			18,141
Total short-term investments	$	71,782	$	5	$	(4	)	$	71,783

Summary of Maturities of Short-Term Investments

The following table summarizes the maturities of the Company’s short-term investments at March 31, 2021:

	Amortized Cost		Estimated Fair Value
Due in one year or less	$	55,696	$	55,693
Due after one year through two years		9,304		9,307
Total short-term investments	$	65,000	$	65,000