Acquisitions - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2019	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill		$ 140,627,000		$ 140,627,000		$ 140,627,000
Estimated fair value of contingent consideration, short term liabilities		58,417,000		58,417,000		55,345,000
Estimated fair value of contingent consideration, long-term liabilities		103,317,000		103,317,000		95,034,000
Change in the estimated fair value of contingent consideration				11,355,000	$ (4,358,000)
Cobalt Biomedicine, Inc | Acquisition Agreement
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired	100.00%
Goodwill	$ 140,600,000
Business acquisition, impairment of intangible assets or goodwill	0
Maximum contingent consideration upon achievement of certain pre-specified development milestones	$ 500,000,000.0
Maximum term for success payment	20 years
Cobalt Biomedicine, Inc | Acquisition Agreement | Research and Development Expense
Business Acquisition [Line Items]
Estimated fair value of contingent consideration		161,700,000		161,700,000		150,400,000
Estimated fair value of contingent consideration, short term liabilities		58,400,000		58,400,000		55,400,000
Estimated fair value of contingent consideration, long-term liabilities		103,300,000		103,300,000		95,000,000.0
Change in estimated fair value of success payment		18,500,000	$ (12,100,000)	13,700,000	(58,900,000)
Change in the estimated fair value of contingent consideration		5,900,000	$ (3,800,000)	11,400,000	$ (4,400,000)
Cobalt Biomedicine, Inc | Acquisition Agreement | Long-term Liabilities | Research and Development Expense
Business Acquisition [Line Items]
Estimated fair value of success payment liability		$ 32,800,000		$ 32,800,000		$ 19,000,000.0
Cobalt Biomedicine, Inc | Acquisition Agreement | Minimum
Business Acquisition [Line Items]
Threshold market capitalization	$ 8,100,000,000
Cobalt Biomedicine, Inc | Acquisition Agreement | Market Capitalization Equal to or Exceeds $8.1 billion
Business Acquisition [Line Items]
Cobalt success payment	500,000,000.0
Cobalt Biomedicine, Inc | Acquisition Agreement | IPR&D
Business Acquisition [Line Items]
Business combination, intangible assets	$ 59,200,000