Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended			3 Months Ended
	Aug. 31, 2023	Jun. 30, 2023	Feb. 28, 2023	Sep. 30, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Issuance of common stock				$ 5
Common stock, par value (in dollars per share)			$ 0.0001	$ 0.0001	$ 0.0001
At-the-Market Facility
Class of Stock [Line Items]
Sale of stock authorized consideration on transaction			$ 200
Sale of stock, number of shares issued in transaction (in shares)	0.2
Sale of stock, consideration received on transaction	$ 5
Second Stock Purchase Agreement | Gilead
Class of Stock [Line Items]
Issuance of common stock (in shares)		1.0
Purchase price per share (in dollars per share)		$ 19.26
Issuance of common stock		$ 20