Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Summary of Fair Value Hierarchy for Financial Assets

The Company’s fair value hierarchy for its cash equivalents and marketable securities was as follows:

September 30, 2021	Level 1		Level 2		Level 3		Total
Money market securities	$	22,472	$	—	$	—	$	22,472
Commercial paper		—		12,188		—		12,188
Corporate notes		—		7,542		—		7,542
Pre-refunded municipals		—		4,808		—		4,808
Federal agency notes		—		3,798		—		3,798
Total	$	22,472	$	28,336	$	—	$	50,808

December 31, 2020	Level 1		Level 2		Level 3		Total
Money market securities	$	10,988	$	—	$	—	$	10,988
Commercial paper		—		36,478		—		36,478
Pre-refunded municipals		—		26,697		—		26,697
Corporate notes		—		2,437		—		2,437
Total	$	10,988	$	65,612	$	—	$	76,600

Summary of Fair Value Maturities for Financial Asset

The fair value maturities of the Company’s cash equivalents and marketable securities as of September 30, 2021, were as follows:

	Maturities by Period
	Total		Less than 1 year		1-5 years		5 - 10 years		More than 10 years
Cash equivalents and marketable securities	$	50,808	$	42,510	$	8,298	$	—	$	—