Short-term Investments (Tables)

9 Months Ended

Sep. 30, 2022

Short Term Investments [Abstract]

Summary of Short-term Investments

The following is a summary of our short-term investments (in thousands):

	September 30, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
U.S. treasury bills and government agency obligations	$	34,756	$	—	$	(57	)	$	34,699
U.S. commercial paper	$	8,416	$	—	$	—		$	8,416
Foreign commercial paper		28,193		—		—			28,193
Total	$	71,365	$	—	$	(57	)	$	71,308

	December 31, 2021
			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
U.S. corporate debt securities	$	15,009	$	—	$	(3	)	$	15,006
Foreign corporate debt securities		10,551		—		(3	)		10,548
U.S. commercial paper		5,998		—		—			5,998
Foreign commercial paper		35,487		—		—			35,487
Total	$	67,045	$	—	$	(6	)	$	67,039