Marketable Debt Securities (Tables)

9 Months Ended

Sep. 30, 2020

Investments Debt And Equity Securities [Abstract]

Schedule of Marketable Debt Securities

The following table summarizes the Company’s marketable debt securities (in thousands):

	September 30, 2020
	Amortized Cost		Unrealized Losses		Unrealized Gains		Fair Value
Asset-backed securities	$	14,639	$	—	$	50	$	14,689
Corporate debt securities		5,700		—		22		5,722
Commercial paper		2,738		—		11		2,749
Total	$	23,077	$	—	$	83	$	23,160

	December 31, 2019
	Amortized Cost		Unrealized Losses			Unrealized Gains		Fair Value
Asset-backed securities	$	19,589	$	(1	)	$	10	$	19,598
Corporate debt securities		19,387		(3	)		9		19,393
Commercial paper		17,882		—			11		17,893
U.S. Government agency bonds		5,500		(3	)		—		5,497
Total	$	62,358	$	(7	)	$	30	$	62,381

Summary of Classification of Marketable Debt Securities in Condensed Consolidated Balance Sheets

The following table summarizes the classification of the Company’s marketable debt securities in the condensed consolidated balance sheets (in thousands):

	September 30,		December 31,
	2020		2019
Short-term marketable debt securities		23,160		51,793
Long-term marketable debt securities		—		10,588
Total	$	23,160	$	62,381