Redeemable Convertible Preferred Stock and Stockholders' Equity - Additional Information (Details) - USD ($)					1 Months Ended	12 Months Ended
	Dec. 28, 2023	Jan. 31, 2023	Jan. 26, 2023	Feb. 08, 2022	Jan. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	May 31, 2023
Class of Stock [Line Items]
Common stock voting rights						one vote
Common stock aggregate offering maximum amount under at the market program								$ 350,000,000
Proceeds from issuance of private placement						$ 299,706,000	$ 9,958,000
Gilead Common Stock Purchase Agreement
Class of Stock [Line Items]
Number of shares issued		3,478,261
Shares issued, price per share		$ 28.75			$ 28.75	$ 28.75
Reduction of deemed discount on shares sold		$ 15,300,000			$ 15,300,000
Kite Collaboration Agreement
Class of Stock [Line Items]
Discount on shares sold price per share			$ 4.39
Premium on shares sold price per share	$ 4.8
Reduction of deemed discount on shares sold			$ 15,300,000			$ 15,300,000
Increase in deemed premium on shares sold	$ 15,600,000
Common Stock
Class of Stock [Line Items]
Dividends declared or paid						$ 0
IPO
Class of Stock [Line Items]
Issuance of common stock, value							$ 127,283,000
IPO | Common Stock
Class of Stock [Line Items]
Number of shares issued				9,487,500			9,487,500
Sale of stock, price per share				$ 15
Issuance of common stock, value							$ 9,000
IPO | Redeemable Convertible Preferred Stock
Class of Stock [Line Items]
Shares issued upon conversion of preferred stock						24,785,564
At-the-Market Offering
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction						0
Private Placement
Class of Stock [Line Items]
Issuance of common stock, value						$ 299,706,000	$ 9,958,000
Private Placement | Gilead Common Stock Purchase Agreement
Class of Stock [Line Items]
Number of shares issued	3,242,542		3,478,261
Sale of stock, price per share	$ 61.68		$ 28.75
Issuance of common stock, value	$ 200,000,000		$ 100,000,000		$ 100,000,000
Private Placement | Common Stock
Class of Stock [Line Items]
Number of shares issued						6,720,803	590,318
Issuance of common stock, value						$ 7,000	$ 1,000