Collaboration and License Agreements - Gilead Sciences, Inc. (Details) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended	9 Months Ended
	Apr. 30, 2024 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) item $ / shares shares	Sep. 30, 2024 USD ($) item	Sep. 30, 2024 USD ($) item
Agreements
Revenue			$ 2,263	$ 4,620
Revenue from Contract with Customer, Product and Service			us-gaap:LicenseMember	us-gaap:LicenseMember
Deferred revenue, current portion			$ 26,105	$ 26,105
License and Stock Purchase Agreement | Gilead Sciences, Inc.
Agreements
Maximum additional contingent payments receivable, Transition fee		$ 75,000		$ 75,000
Value of shares counterparty agreed to purchase		$ 25,000
Number of additional private placements | item		3	2	2
Maximum beneficial ownership (as a percent)	19.90%	19.90%
Common stock issued and sold (in shares) | shares	485,250	6,860,223
Purchase price (in dollars per share) | $ / shares	$ 0.76	$ 1.97
Gross proceeds from private placement	$ 3,300	$ 13,500		$ 16,800
Upfront payment				46,800
Upfront payment, cash				30,000
Maximum additional contingent payments receivable				600,700
Contingent payments Company is eligible to receive, Private placements				8,200
Additional contingent payments receivable, Maximum milestones				517,500
Additional contingent payments receivable, Maximum additional private placements and near-term development milestones				25,700
Fair market value of common stock issued (in dollars)		4,400
Premium of common stock issued (in dollars)		$ 9,100
Number of promises | item		2
Transaction price		$ 39,100
Transaction price, Cash payment		30,000
Transaction price, Premium on sale of stock		$ 9,100
Revenue			$ 2,300	$ 4,600
Revenue from Contract with Customer, Product and Service			us-gaap:LicenseMember	us-gaap:LicenseMember
Deferred revenue			$ 34,500	$ 34,500
Deferred revenue, current portion			26,100	26,100
Current liability			$ 26,100	$ 26,100
License and Stock Purchase Agreement | Gilead Sciences, Inc. | Prefunded warrants
Agreements
Warrants issued (in shares) | shares	3,882,450
Purchase price, warrant (in dollars per share) | $ / shares	$ 0.7599
Exercise price, warrants (in dollars per share) | $ / shares	$ 0.0001