Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Measurements

Schedule of assets measured on a recurring basis at fair value

	Level 1		Level 2		Level 3		Total
	(in thousands)
December 31, 2021
Cash equivalents
Certificate of deposits and time deposits	$	41,544	$	—	$	—	$	41,544
Money market cash		121		—		—		121
Total	$	41,665	$	—	$	—	$	41,665
Short-term investments
U.S. treasuries	$	51,095	$	—	$	—	$	51,095
Government agency securities		—		12,052		—		12,052
Corporate debt		—		40,035		—		40,035
Commercial paper		—		999		—		999
Total	$	51,095	$	53,086	$	—	$	104,181
December 31, 2020
Cash equivalents
Certificate of deposits and time deposits	$	59,168	$	—	$	—	$	59,168
Commercial paper		—		2,000		—		2,000
U.S. treasuries		24,997		—		—		24,997
Total	$	84,165	$	2,000	$	—	$	86,165
Short-term investments
U.S. treasuries	$	149,219	$	—	$	—	$	149,219
Corporate debt		—		32,554		—		32,554
Commercial paper		—		7,998		—		7,998
Total	$	149,219	$	40,552	$	—	$	189,771