Collaboration and License Agreements - Summary of Reconciliation of Closing Balance of Deferred Revenue Related to agreements (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Collaborations And License Agreement [Line Items]
Beginning balance	$ 47,788	$ 41,056
Amounts received/invoiced	124,540	71,435
Revenue recognized	(54,115)	(64,703)
Ending balance	118,213	47,788
Roche Collaboration Agreement
Collaborations And License Agreement [Line Items]
Beginning balance	12,205	31,749
Amounts received/invoiced	74,540	30,741
Revenue recognized	(42,198)	(50,285)
Ending balance	44,547	12,205
Takeda Collaboration Agreement
Collaborations And License Agreement [Line Items]
Beginning balance		9,307
Amounts received/invoiced		5,111
Revenue recognized		(14,418)
Astellas Strategic Rights Letter
Collaborations And License Agreement [Line Items]
Beginning balance	35,583
Amounts received/invoiced		35,583
Revenue recognized	(11,861)
Ending balance	23,722	$ 35,583
Astellas Collaboration Agreement
Collaborations And License Agreement [Line Items]
Amounts received/invoiced	50,000
Revenue recognized	(56)
Ending balance	$ 49,944