Short-Term Investments (Tables)

12 Months Ended

Dec. 31, 2020

Cash And Cash Equivalents [Abstract]

Summary of Short-Term Investments

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

	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

	As of December 31, 2019
			Unrealized
	Amortized Cost		Gains		Losses			Estimated Fair Value
Commercial paper	$	9,680	$	14	$	—		$	9,694
Corporate debt securities		24,762		20		(1	)		24,781
Asset backed securities		5,500		8		—			5,508
Total short-term investments	$	39,942	$	42	$	(1	)	$	39,983

Summary of Maturities of Short-Term Investments

The following table summarizes the maturities of the Company’s short-term investments at December 31, 2020 (in thousands):

	Amortized Cost		Estimated Fair Value
Due in one year or less	$	57,185	$	57,182
Due after one year through two years		14,597		14,601
Total short-term investments	$	71,782	$	71,783