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Quarterly Financial Information (Unaudited) - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Interim Period, Costs Not Allocable [Line Items]
Deferred rent receivable	$ 0	$ 0					$ 0		$ 0
Research and development expense reversal	(20,439)	(17,097)	$ (15,410)	$ (20,740)	$ (20,599)	$ (20,869)	(32,507)	$ (41,468)	(52,946)	$ (62,208)	$ (77,041)	$ (77,486)
Right-to-use asset	33,680	33,996	34,478	35,599	41,233	46,598	33,996	41,233	33,680	35,599	33,611	35,024
Lease liability											$ 91,705
Adjustment
Interim Period, Costs Not Allocable [Line Items]
Deferred rent receivable	(7,116)	(6,963)					(6,963)		(7,116)
Research and development expense reversal	0	0	0	0	0	190	0	190	0	190		190
Right-to-use asset	$ (17,015)	$ (17,241)	$ (17,282)	$ (17,158)	$ (17,054)	(22,905)	$ (17,241)	$ (17,054)	$ (17,015)	$ (17,158)		$ (17,242)
Adjustment | Redwood, California Facility Lease
Interim Period, Costs Not Allocable [Line Items]
Right-to-use asset						300
Lease liability						$ 300

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