Cash, Cash Equivalents, Restricted Cash and Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Summary of Cash, Cash Equivalents, Restricted Cash and Investments

	September 30, 2023
(in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
Cash, cash equivalents and restricted cash	$	46,397	$	—	$	—	$	46,397
Corporate bonds	31,820		—		(15)		31,805
Commercial paper	93,960		—		(44)		93,916
Treasury bills	80,210		3		—		80,213
Treasury bonds	85,654		—		(85)		85,569
Yankee bonds	—		—		—		—
Total cash, cash equivalents, restricted cash and short-term investments	$	338,041	$	3	$	(144)	$	337,900
Total long-term investment corporate bond	592		—		(1)		591
Total cash, cash equivalents, restricted cash and investments							$	338,491
	December 31, 2022
(in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
Cash, cash equivalents and restricted cash	$	94,172	$	—	$	—	$	94,172
U.S. agency securities	4,951		—		(3)		4,948
Corporate bonds	104,174		—		(94)		104,080
Commercial paper	125,255		—		(68)		125,187
Treasury bills	12,290		—		(8)		12,282
Treasury bonds	42,301		—		(81)		42,220
Yankee bonds	6,503		—		(2)		6,501
Total cash, cash equivalents, restricted cash and short-term investments	$	389,646	$	—	$	(256)	$	389,390