Organization, Going Concern and Basis of Presentation - Additional Information (Details) - USD ($) $ in Thousands				3 Months Ended
	Mar. 22, 2024	May 25, 2023	Apr. 13, 2022	Mar. 31, 2024	Dec. 31, 2023
Organization And Basis Of Presentation [Line Items]
Entity incorporation, date of incorporation				Nov. 21, 2005
Fund raised for operations				$ 424,800
Proceeds from issuance of redeemable convertible preferred stock				162,100
Proceeds from issuance initial public offering				57,300
Accumulated deficit				(333,807)	$ (311,355)
Cash and cash equivalents				15,799	22,353
Short-term investments				71,319	$ 80,400
Proceeds from government contracts				16,800
Exercise of common stock warrants				3,800
Proceeds from license and collaboration agreement				17,000
Stock and warrants to be issued during period value preferred stock and warrants	$ 300,000
Private Placement
Organization And Basis Of Presentation [Line Items]
Net proceeds from private placement			$ 96,300	96,300
Private Placement | Purchase Agreement
Organization And Basis Of Presentation [Line Items]
Net proceeds from private placement		$ 50,000
Net proceeds from issuance of preferred stock allocated to warrants		46,500		46,500
Controlled Equity Offering Sales Agreement
Organization And Basis Of Presentation [Line Items]
Net proceeds				$ 23,900
Common Stock
Organization And Basis Of Presentation [Line Items]
Net proceeds		$ 30,500