Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 238.0	$ 238.0	$ 0.0
Collaborative arrangement, milestone payment		208.0
Amortization of intangible assets		1.7
Goodwill	1,088.0	1,088.0	1,088.0
CRSIPR A&R JDCA
Indefinite-Lived Intangible Assets [Line Items]
Collaborative arrangement, milestone payment		$ 200.0
Editas Medicine, Inc.
Indefinite-Lived Intangible Assets [Line Items]
License agreement, upfront payment, net	$ 30.0
In-process research and development
Indefinite-Lived Intangible Assets [Line Items]
Intangible asset impairment charges			$ 13.0