Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Summary of Cash Equivalents and Investments

Cash equivalents and investments consisted of the following:

	June 30, 2022						December 31, 2021
(in thousands)	Amortized Cost		Unrealized Losses, net		Fair Value		Amortized Cost		Unrealized Gains (Losses), net		Fair Value
Cash equivalents:
Money market funds	$	138,729	$	—	$	138,729	$	138,205	$	—	$	138,205
Certificates of deposit	6,904		—		6,904		7,268		—		7,268
Marketable securities:
Commercial paper	39,634		(25)		39,609		34,984		7		34,991
U.S. treasury securities	—		—		—		7,500		(1)		7,499
	$	185,267	$	(25)	$	185,242	$	187,957	$	6	$	187,963

Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table details the fair value hierarchy of our assets and liabilities measured at a fair value on a recurring basis:

	June 30, 2022								December 31, 2021
(in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	138,729	$	—	$	—	$	138,729	$	138,205	$	—	$	—	$	138,205
Certificates of deposit	6,904		—		—		6,904		7,268		—		—		7,268
Marketable securities:
Commercial paper	—		39,609		—		39,609		—		34,991		—		34,991
U.S. treasury securities	—		—		—		—		—		7,499		—		7,499
	$	145,633	$	39,609	$	—	$	185,242	$	145,473	$	42,490	$	—	$	187,963