Moderna Collaboration and License Agreement - Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Movement in Deferred Revenue [Roll Forward]
Balance at the beginning of the period	$ 47,459	$ 0
Deferral of revenue	13,873	57,293
Recognition of unearned revenue	(14,919)	(9,834)
Balance at the ending of the period	$ 46,413	$ 47,459