Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

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:

June 30, 2019	Level 1		Level 2		Level 3		Total
Money market securities	$	6,547	$	—	$	—	$	6,547
Commercial paper		—		39,262		—		39,262
Federal agency notes		—		2,002		—		2,002
Corporate notes		—		1,644		—		1,644
Total	$	6,547	$	42,908	$	—	$	49,455

December 31, 2018	Level 1		Level 2		Level 3		Total
Money market securities	$	1,472	$	—	$	—	$	1,472
Commercial paper		—		28,343		—		28,343
Corporate notes		—		12,106		—		12,106
Total	$	1,472	$	40,449	$	—	$	41,921

Summary of Fair Value Maturities for Financial Asset

The fair value maturities of the Company’s cash equivalents and marketable securities as of June 30, 2019 are as follows:

	Maturities by Period
	Total		Lessthan 1 year		1-5 years		5 - 10 years		More than 10 years
Cash equivalents and marketable securities	$	49,455	$	49,455	$	—	$	—	$	—