Cash and Investments in Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Cash and Investments in Marketable Securities, Including Cash Equivalents

Cash and investments in marketable securities, including cash equivalents, are as follows (in thousands):

	Estimated Fair Value at
	June 30, 2023		December 31, 2022
Cash and cash equivalents	$	50,728	$	88,227
Short-term investments	358,704		416,750
Total cash and investments in marketable securities	$	409,432	$	504,977

Schedule of Portfolio of Cash and Investments in Marketable Securities

Our portfolio of cash and investments in marketable securities includes (in thousands):

	Fair Value Hierarchy Level	June 30, 2023								December 31, 2022
		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Fair Value
Corporate notes and bonds	2	$	21,466	$	—	$	(70)	$	21,396	$	83,522
Corporate commercial paper	2	304,389		—		(370)		304,019		344,204
Obligations of U.S. government agencies	2	25,792		—		(5)		25,787		—
Available-for-sale investments		$	351,647	$	—	$	(445)	$	351,202	$	427,726
Money market funds	1							38,597		47,054
Certificates of deposit	2							7,502		21,399
Cash	N/A							12,131		8,798
Total cash and investments in marketable securities								$	409,432	$	504,977